{"id":2440,"date":"2026-09-24T09:00:00","date_gmt":"2026-09-24T09:00:00","guid":{"rendered":"https:\/\/otus.ru\/journal\/?p=2440"},"modified":"2026-09-25T15:30:49","modified_gmt":"2026-09-25T15:30:49","slug":"java-script-vse-chto-nuzhno-znat-o-ciklah","status":"publish","type":"post","link":"https:\/\/otus.ru\/journal\/java-script-vse-chto-nuzhno-znat-o-ciklah\/","title":{"rendered":"\u0426\u0438\u043a\u043b\u044b \u0432 JavaScript: for, while, for&#8230;of, for&#8230;in \u0438 forEach \u0441 \u043f\u0440\u0438\u043c\u0435\u0440\u0430\u043c\u0438"},"content":{"rendered":"<p><strong>\u0426\u0438\u043a\u043b \u0432 JavaScript<\/strong> &#8212; \u044d\u0442\u043e \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u044f, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u043e\u0432\u0442\u043e\u0440\u044f\u0435\u0442 \u0431\u043b\u043e\u043a \u043a\u043e\u0434\u0430: \u043b\u0438\u0431\u043e \u043f\u043e\u043a\u0430 \u0443\u0441\u043b\u043e\u0432\u0438\u0435 \u0438\u0441\u0442\u0438\u043d\u043d\u043e (<code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for<\/code>, <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">while<\/code>, <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">do...while<\/code>), \u043b\u0438\u0431\u043e \u043f\u043e \u043e\u0434\u043d\u043e\u043c\u0443 \u0440\u0430\u0437\u0443 \u0434\u043b\u044f \u043a\u0430\u0436\u0434\u043e\u0433\u043e \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u0430 \u043a\u043e\u043b\u043b\u0435\u043a\u0446\u0438\u0438 (<code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...of<\/code>) \u0438\u043b\u0438 \u043a\u0430\u0436\u0434\u043e\u0433\u043e \u043a\u043b\u044e\u0447\u0430 \u043e\u0431\u044a\u0435\u043a\u0442\u0430 (<code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...in<\/code>). \u041e\u0442\u0434\u0435\u043b\u044c\u043d\u043e \u0441\u0442\u043e\u0438\u0442 \u043c\u0435\u0442\u043e\u0434 \u043c\u0430\u0441\u0441\u0438\u0432\u0430 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">forEach<\/code> &#8212; \u044d\u0442\u043e \u043d\u0435 \u043e\u043f\u0435\u0440\u0430\u0442\u043e\u0440 \u0446\u0438\u043a\u043b\u0430, \u0430 \u0444\u0443\u043d\u043a\u0446\u0438\u044f, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u0441\u0430\u043c\u0430 \u0432\u044b\u0437\u044b\u0432\u0430\u0435\u0442 \u0432\u0430\u0448 \u043a\u043e\u043b\u0431\u044d\u043a \u0434\u043b\u044f \u043a\u0430\u0436\u0434\u043e\u0433\u043e \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u0430.<\/p>\n<div class=\"oj-toc\" style=\"background:#f6f6f6;border-radius:8px;padding:14px 20px;margin:20px 0\">\n<p><strong>\u0421\u043e\u0434\u0435\u0440\u0436\u0430\u043d\u0438\u0435<\/strong><\/p>\n<ol>\n<li><a href=\"#s1\">\u0422\u0440\u0438 \u0442\u0435\u0440\u043c\u0438\u043d\u0430, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043f\u0443\u0442\u0430\u044e\u0442<\/a><\/li>\n<li><a href=\"#s2\">\u041a\u0430\u043a\u043e\u0439 \u0446\u0438\u043a\u043b \u0432\u044b\u0431\u0440\u0430\u0442\u044c<\/a><\/li>\n<li><a href=\"#s3\">for: \u0446\u0438\u043a\u043b \u0441\u043e \u0441\u0447\u0435\u0442\u0447\u0438\u043a\u043e\u043c<\/a><\/li>\n<li><a href=\"#s4\">while: \u043f\u043e\u043a\u0430 \u0443\u0441\u043b\u043e\u0432\u0438\u0435 \u0438\u0441\u0442\u0438\u043d\u043d\u043e<\/a><\/li>\n<li><a href=\"#s5\">do&#8230;while: \u0445\u043e\u0442\u044f \u0431\u044b \u043e\u0434\u0438\u043d \u0440\u0430\u0437<\/a><\/li>\n<li><a href=\"#s6\">for&#8230;of \u0438 for&#8230;in: \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0442\u0438\u0432 \u043a\u043b\u044e\u0447\u0435\u0439<\/a><\/li>\n<li><a href=\"#s7\">forEach: \u043c\u0435\u0442\u043e\u0434, \u0430 \u043d\u0435 \u0446\u0438\u043a\u043b<\/a><\/li>\n<li><a href=\"#s8\">break, continue \u0438 \u043c\u0435\u0442\u043a\u0438<\/a><\/li>\n<li><a href=\"#s9\">\u0422\u0438\u043f\u0438\u0447\u043d\u044b\u0435 \u043e\u0448\u0438\u0431\u043a\u0438<\/a><\/li>\n<li><a href=\"#s10\">\u0412\u044b\u0432\u043e\u0434\u044b<\/a><\/li>\n<li><a href=\"#s11\">\u0413\u0434\u0435 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u0442\u0441\u044f \/ \u0441\u0432\u044f\u0437\u044c \u0441 \u043f\u0440\u0430\u043a\u0442\u0438\u043a\u043e\u0439<\/a><\/li>\n<li><a href=\"#s12\">FAQ<\/a><\/li>\n<\/ol>\n<\/div>\n<p>\u041d\u0438\u0436\u0435 &#8212; \u0442\u0430\u0431\u043b\u0438\u0446\u0430 \u0432\u044b\u0431\u043e\u0440\u0430, \u043a\u0430\u0436\u0434\u044b\u0439 \u0432\u0438\u0434 \u0446\u0438\u043a\u043b\u0430 \u043d\u0430 \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0435\u043c\u043e\u043c \u043f\u0440\u0438\u043c\u0435\u0440\u0435, \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0447\u0435\u0440\u0435\u0437 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">break<\/code>, <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">continue<\/code> \u0438 \u043c\u0435\u0442\u043a\u0438, \u0438 \u043e\u0448\u0438\u0431\u043a\u0438, \u043d\u0430 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0447\u0430\u0449\u0435 \u0432\u0441\u0435\u0433\u043e \u0441\u043f\u043e\u0442\u044b\u043a\u0430\u044e\u0442\u0441\u044f. \u0412\u0441\u0435 \u043f\u0440\u0438\u043c\u0435\u0440\u044b \u043f\u0440\u043e\u0432\u0435\u0440\u0435\u043d\u044b 24.09.2026 \u0432 Node.js 24.21 (LTS); \u0432 \u0441\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0445 \u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0430\u0445 \u043f\u043e\u0432\u0435\u0434\u0435\u043d\u0438\u0435 \u0442\u043e \u0436\u0435.<\/p>\n<h2 id=\"s1\">\u0422\u0440\u0438 \u0442\u0435\u0440\u043c\u0438\u043d\u0430, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043f\u0443\u0442\u0430\u044e\u0442<\/h2>\n<ul>\n<li><strong>\u0418\u0442\u0435\u0440\u0430\u0446\u0438\u044f<\/strong> &#8212; \u043e\u0434\u0438\u043d \u043f\u0440\u043e\u0445\u043e\u0434 \u0442\u0435\u043b\u0430 \u0446\u0438\u043a\u043b\u0430. \u0426\u0438\u043a\u043b \u0438\u0437 4 \u0438\u0442\u0435\u0440\u0430\u0446\u0438\u0439 \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u0442 \u0442\u0435\u043b\u043e 4 \u0440\u0430\u0437\u0430.<\/li>\n<li><strong>\u0418\u0442\u0435\u0440\u0438\u0440\u0443\u0435\u043c\u044b\u0439 \u043e\u0431\u044a\u0435\u043a\u0442<\/strong> &#8212; \u0442\u043e, \u0447\u0442\u043e \u0443\u043c\u0435\u0435\u0442 \u043e\u0442\u0434\u0430\u0432\u0430\u0442\u044c \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f \u043f\u043e \u043e\u0447\u0435\u0440\u0435\u0434\u0438 \u0447\u0435\u0440\u0435\u0437 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">Symbol.iterator<\/code>: \u043c\u0430\u0441\u0441\u0438\u0432, \u0441\u0442\u0440\u043e\u043a\u0430, <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">Map<\/code>, <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">Set<\/code>, <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">NodeList<\/code>. \u041f\u043e \u043d\u0435\u043c\u0443 \u0445\u043e\u0434\u0438\u0442 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...of<\/code>.<\/li>\n<li><strong>\u041f\u0435\u0440\u0435\u0447\u0438\u0441\u043b\u044f\u0435\u043c\u043e\u0435 \u0441\u0432\u043e\u0439\u0441\u0442\u0432\u043e<\/strong> &#8212; \u043a\u043b\u044e\u0447 \u043e\u0431\u044a\u0435\u043a\u0442\u0430 \u0441 \u0444\u043b\u0430\u0433\u043e\u043c enumerable. \u041f\u043e \u0442\u0430\u043a\u0438\u043c \u043a\u043b\u044e\u0447\u0430\u043c (\u0432\u043a\u043b\u044e\u0447\u0430\u044f \u0443\u043d\u0430\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u043d\u043d\u044b\u0435) \u0445\u043e\u0434\u0438\u0442 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...in<\/code>.<\/li>\n<\/ul>\n<p>\u0418\u0442\u0435\u0440\u0438\u0440\u0443\u0435\u043c\u044b\u0439 \u0438 \u043f\u0435\u0440\u0435\u0447\u0438\u0441\u043b\u044f\u0435\u043c\u044b\u0439 &#8212; \u0440\u0430\u0437\u043d\u044b\u0435 \u0432\u0435\u0449\u0438: \u043e\u0431\u044b\u0447\u043d\u044b\u0439 \u043e\u0431\u044a\u0435\u043a\u0442 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">{ a: 1 }<\/code> \u043f\u0435\u0440\u0435\u0447\u0438\u0441\u043b\u044f\u0435\u043c\u044b\u0439, \u043d\u043e \u043d\u0435 \u0438\u0442\u0435\u0440\u0438\u0440\u0443\u0435\u043c\u044b\u0439, \u043f\u043e\u044d\u0442\u043e\u043c\u0443 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...in<\/code> \u043f\u043e \u043d\u0435\u043c\u0443 \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442, \u0430 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...of<\/code> \u043f\u0430\u0434\u0430\u0435\u0442.<\/p>\n<h2 id=\"s2\">\u041a\u0430\u043a\u043e\u0439 \u0446\u0438\u043a\u043b \u0432\u044b\u0431\u0440\u0430\u0442\u044c<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u0417\u0430\u0434\u0430\u0447\u0430<\/th>\n<th>\u0427\u0442\u043e \u0432\u0437\u044f\u0442\u044c<\/th>\n<th>\u041a\u043e\u0433\u0434\u0430 \u0438\u043d\u0430\u0447\u0435<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u041d\u0443\u0436\u0435\u043d \u0438\u043d\u0434\u0435\u043a\u0441 \u0438\u043b\u0438 \u0448\u0430\u0433 \u043d\u0435 1<\/td>\n<td><code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for (let i = 0; ...; i++)<\/code><\/td>\n<td>\u0435\u0441\u043b\u0438 \u0438\u043d\u0434\u0435\u043a\u0441 \u043d\u0435 \u043d\u0443\u0436\u0435\u043d &#8212; <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...of<\/code><\/td>\n<\/tr>\n<tr>\n<td>\u041f\u0435\u0440\u0435\u0431\u0440\u0430\u0442\u044c \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f \u043c\u0430\u0441\u0441\u0438\u0432\u0430, \u0441\u0442\u0440\u043e\u043a\u0438, Map, Set<\/td>\n<td><code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...of<\/code><\/td>\n<td>\u043d\u0443\u0436\u0435\u043d \u0438\u043d\u0434\u0435\u043a\u0441 &#8212; <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">arr.entries()<\/code> \u0438\u043b\u0438 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for<\/code><\/td>\n<\/tr>\n<tr>\n<td>\u041f\u043e\u0432\u0442\u043e\u0440\u044f\u0442\u044c, \u043f\u043e\u043a\u0430 \u043d\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u0441\u044f \u0443\u0441\u043b\u043e\u0432\u0438\u0435, \u0447\u0438\u0441\u043b\u043e \u0448\u0430\u0433\u043e\u0432 \u043d\u0435\u0438\u0437\u0432\u0435\u0441\u0442\u043d\u043e<\/td>\n<td><code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">while<\/code><\/td>\n<td>\u0442\u0435\u043b\u043e \u0434\u043e\u043b\u0436\u043d\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c\u0441\u044f \u0445\u043e\u0442\u044f \u0431\u044b \u0440\u0430\u0437 &#8212; <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">do...while<\/code><\/td>\n<\/tr>\n<tr>\n<td>\u041f\u0435\u0440\u0435\u0431\u0440\u0430\u0442\u044c \u043a\u043b\u044e\u0447\u0438 \u0438 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f \u043e\u0431\u044b\u0447\u043d\u043e\u0433\u043e \u043e\u0431\u044a\u0435\u043a\u0442\u0430<\/td>\n<td><code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...of<\/code> + <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">Object.entries(obj)<\/code><\/td>\n<td><code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...in<\/code> &#8212; \u0435\u0441\u043b\u0438 \u043d\u0443\u0436\u043d\u044b \u0438 \u0443\u043d\u0430\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u043d\u043d\u044b\u0435 \u043a\u043b\u044e\u0447\u0438<\/td>\n<\/tr>\n<tr>\n<td>\u0412\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 \u0434\u043b\u044f \u043a\u0430\u0436\u0434\u043e\u0433\u043e \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u0430 \u0431\u0435\u0437 \u0434\u043e\u0441\u0440\u043e\u0447\u043d\u043e\u0433\u043e \u0432\u044b\u0445\u043e\u0434\u0430<\/td>\n<td><code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">forEach<\/code><\/td>\n<td>\u043d\u0443\u0436\u0435\u043d <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">break<\/code> \u0438\u043b\u0438 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">await<\/code> &#8212; <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...of<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"s3\">for: \u0446\u0438\u043a\u043b \u0441\u043e \u0441\u0447\u0435\u0442\u0447\u0438\u043a\u043e\u043c<\/h2>\n<p>\u041c\u0438\u043d\u0438\u043c\u0430\u043b\u044c\u043d\u044b\u0439 \u043f\u043e\u043b\u043d\u044b\u0439 \u043f\u0440\u0438\u043c\u0435\u0440 &#8212; \u0441\u0443\u043c\u043c\u0430 \u0447\u0435\u043a\u043e\u0432 \u0441 \u0432\u044b\u0432\u043e\u0434\u043e\u043c \u043a\u0430\u0436\u0434\u043e\u0433\u043e \u0448\u0430\u0433\u0430:<\/p>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\"><span style=\"color: #C678DD\">const<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">prices<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> [<\/span><span style=\"color: #D19A66\">120<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">450<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">80<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">990<\/span><span style=\"color: #ABB2BF\">];<\/span>\n<span style=\"color: #C678DD\">let<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">total<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">0<\/span><span style=\"color: #ABB2BF\">;<\/span>\n\n<span style=\"color: #C678DD\">for<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #C678DD\">let<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">0<\/span><span style=\"color: #ABB2BF\">; <\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">&lt;<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">prices<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">length<\/span><span style=\"color: #ABB2BF\">; <\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #56B6C2\">++<\/span><span style=\"color: #ABB2BF\">) {<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #E06C75\">total<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">+=<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">prices<\/span><span style=\"color: #ABB2BF\">[<\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\">];<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #98C379\">`\u0448\u0430\u0433 ${<\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #98C379\">}: +${<\/span><span style=\"color: #E06C75\">prices<\/span><span style=\"color: #ABB2BF\">[<\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\">]<\/span><span style=\"color: #98C379\">}, \u0438\u0442\u043e\u0433\u043e ${<\/span><span style=\"color: #E06C75\">total<\/span><span style=\"color: #98C379\">}`<\/span><span style=\"color: #ABB2BF\">);<\/span>\n<span style=\"color: #ABB2BF\">}<\/span>\n\n<span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #98C379\">'\u0441\u0443\u043c\u043c\u0430:'<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #E06C75\">total<\/span><span style=\"color: #ABB2BF\">);<\/span><\/code><\/pre>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\">\u0448\u0430\u0433 0: +120, \u0438\u0442\u043e\u0433\u043e 120\n\u0448\u0430\u0433 1: +450, \u0438\u0442\u043e\u0433\u043e 570\n\u0448\u0430\u0433 2: +80, \u0438\u0442\u043e\u0433\u043e 650\n\u0448\u0430\u0433 3: +990, \u0438\u0442\u043e\u0433\u043e 1640\n\u0441\u0443\u043c\u043c\u0430: 1640\n<\/code><\/pre>\n<p>\u0412 \u0437\u0430\u0433\u043e\u043b\u043e\u0432\u043a\u0435 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for<\/code> \u0442\u0440\u0438 \u0447\u0430\u0441\u0442\u0438 \u0447\u0435\u0440\u0435\u0437 \u0442\u043e\u0447\u043a\u0443 \u0441 \u0437\u0430\u043f\u044f\u0442\u043e\u0439. \u041f\u043e\u0440\u044f\u0434\u043e\u043a \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0442\u0430\u043a\u043e\u0439:<\/p>\n<ol>\n<li><strong>\u0418\u043d\u0438\u0446\u0438\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f<\/strong> <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">let i = 0<\/code> &#8212; \u043e\u0434\u0438\u043d \u0440\u0430\u0437 \u043f\u0435\u0440\u0435\u0434 \u0446\u0438\u043a\u043b\u043e\u043c.<\/li>\n<li><strong>\u0423\u0441\u043b\u043e\u0432\u0438\u0435<\/strong> <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">i &lt; prices.length<\/code> &#8212; \u043f\u0435\u0440\u0435\u0434 \u043a\u0430\u0436\u0434\u043e\u0439 \u0438\u0442\u0435\u0440\u0430\u0446\u0438\u0435\u0439; \u0435\u0441\u043b\u0438 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">false<\/code>, \u0446\u0438\u043a\u043b \u0437\u0430\u0432\u0435\u0440\u0448\u0430\u0435\u0442\u0441\u044f.<\/li>\n<li><strong>\u0422\u0435\u043b\u043e<\/strong> &#8212; \u0431\u043b\u043e\u043a \u0432 \u0444\u0438\u0433\u0443\u0440\u043d\u044b\u0445 \u0441\u043a\u043e\u0431\u043a\u0430\u0445.<\/li>\n<li><strong>\u0428\u0430\u0433<\/strong> <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">i++<\/code> &#8212; \u043f\u043e\u0441\u043b\u0435 \u0442\u0435\u043b\u0430, \u0437\u0430\u0442\u0435\u043c \u0441\u043d\u043e\u0432\u0430 \u043f\u0443\u043d\u043a\u0442 2.<\/li>\n<\/ol>\n<p>\u0412\u0441\u0435 \u0442\u0440\u0438 \u0447\u0430\u0441\u0442\u0438 \u043d\u0435\u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u044b: <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for (;;) { ... }<\/code> &#8212; \u0431\u0435\u0441\u043a\u043e\u043d\u0435\u0447\u043d\u044b\u0439 \u0446\u0438\u043a\u043b, \u0438\u0437 \u043a\u043e\u0442\u043e\u0440\u043e\u0433\u043e \u0432\u044b\u0445\u043e\u0434\u044f\u0442 \u0447\u0435\u0440\u0435\u0437 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">break<\/code>. \u0424\u0438\u0433\u0443\u0440\u043d\u044b\u0435 \u0441\u043a\u043e\u0431\u043a\u0438 \u043f\u0440\u0438 \u043e\u0434\u043d\u043e\u0439 \u0438\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0438 \u0432 \u0442\u0435\u043b\u0435 \u043c\u043e\u0436\u043d\u043e \u043e\u043f\u0443\u0441\u0442\u0438\u0442\u044c, \u043d\u043e \u0432 \u0440\u0430\u0431\u043e\u0447\u0435\u043c \u043a\u043e\u0434\u0435 \u0438\u0445 \u043e\u0431\u044b\u0447\u043d\u043e \u0441\u0442\u0430\u0432\u044f\u0442: \u0442\u0430\u043a \u043c\u0435\u043d\u044c\u0448\u0435 \u043e\u0448\u0438\u0431\u043e\u043a \u043f\u0440\u0438 \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u0438 \u0432\u0442\u043e\u0440\u043e\u0439 \u0441\u0442\u0440\u043e\u043a\u0438.<\/p>\n<h3>let \u0438\u043b\u0438 var \u0432 \u0441\u0447\u0435\u0442\u0447\u0438\u043a\u0435<\/h3>\n<p>\u041e\u0431\u044a\u044f\u0432\u043b\u044f\u0442\u044c \u0441\u0447\u0435\u0442\u0447\u0438\u043a \u0447\u0435\u0440\u0435\u0437 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">let<\/code>, \u0430 \u043d\u0435 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">var<\/code>, \u0432\u0430\u0436\u043d\u043e \u043d\u0435 \u0442\u043e\u043b\u044c\u043a\u043e \u0438\u0437 \u0432\u043a\u0443\u0441\u0430. <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">let<\/code> \u0441\u043e\u0437\u0434\u0430\u0435\u0442 \u043d\u043e\u0432\u0443\u044e \u043f\u0435\u0440\u0435\u043c\u0435\u043d\u043d\u0443\u044e \u043d\u0430 \u043a\u0430\u0436\u0434\u0443\u044e \u0438\u0442\u0435\u0440\u0430\u0446\u0438\u044e, <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">var<\/code> &#8212; \u043e\u0434\u043d\u0443 \u043d\u0430 \u0432\u0441\u044e \u0444\u0443\u043d\u043a\u0446\u0438\u044e. \u0420\u0430\u0437\u043d\u0438\u0446\u0430 \u0432\u0438\u0434\u043d\u0430, \u043a\u043e\u0433\u0434\u0430 \u0432\u043d\u0443\u0442\u0440\u0438 \u0446\u0438\u043a\u043b\u0430 \u0441\u043e\u0437\u0434\u0430\u044e\u0442\u0441\u044f \u0444\u0443\u043d\u043a\u0446\u0438\u0438:<\/p>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\"><span style=\"color: #C678DD\">const<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">fns<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> [];<\/span>\n<span style=\"color: #C678DD\">for<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #C678DD\">var<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">0<\/span><span style=\"color: #ABB2BF\">; <\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">&lt;<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">3<\/span><span style=\"color: #ABB2BF\">; <\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #56B6C2\">++<\/span><span style=\"color: #ABB2BF\">) {<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #E06C75\">fns<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">push<\/span><span style=\"color: #ABB2BF\">(() =&gt; <\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\">);<\/span>\n<span style=\"color: #ABB2BF\">}<\/span>\n<span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #E06C75\">fns<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">map<\/span><span style=\"color: #ABB2BF\">((<\/span><span style=\"color: #E06C75\">f<\/span><span style=\"color: #ABB2BF\">) =&gt; <\/span><span style=\"color: #E06C75\">f<\/span><span style=\"color: #ABB2BF\">()));<\/span>\n\n<span style=\"color: #C678DD\">const<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">fixed<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> [];<\/span>\n<span style=\"color: #C678DD\">for<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #C678DD\">let<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">j<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">0<\/span><span style=\"color: #ABB2BF\">; <\/span><span style=\"color: #E06C75\">j<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">&lt;<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">3<\/span><span style=\"color: #ABB2BF\">; <\/span><span style=\"color: #E06C75\">j<\/span><span style=\"color: #56B6C2\">++<\/span><span style=\"color: #ABB2BF\">) {<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #E06C75\">fixed<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">push<\/span><span style=\"color: #ABB2BF\">(() =&gt; <\/span><span style=\"color: #E06C75\">j<\/span><span style=\"color: #ABB2BF\">);<\/span>\n<span style=\"color: #ABB2BF\">}<\/span>\n<span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #E06C75\">fixed<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">map<\/span><span style=\"color: #ABB2BF\">((<\/span><span style=\"color: #E06C75\">f<\/span><span style=\"color: #ABB2BF\">) =&gt; <\/span><span style=\"color: #E06C75\">f<\/span><span style=\"color: #ABB2BF\">()));<\/span><\/code><\/pre>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\">[ 3, 3, 3 ]\n[ 0, 1, 2 ]\n<\/code><\/pre>\n<p>\u0421 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">var<\/code> \u0432\u0441\u0435 \u0442\u0440\u0438 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \u0432\u0438\u0434\u044f\u0442 \u043e\u0434\u043d\u0443 \u043f\u0435\u0440\u0435\u043c\u0435\u043d\u043d\u0443\u044e, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043a \u043c\u043e\u043c\u0435\u043d\u0442\u0443 \u0432\u044b\u0437\u043e\u0432\u0430 \u0443\u0436\u0435 \u0440\u0430\u0432\u043d\u0430 3. \u0421 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">let<\/code> \u043a\u0430\u0436\u0434\u0430\u044f \u0444\u0443\u043d\u043a\u0446\u0438\u044f \u0437\u0430\u043f\u043e\u043c\u043d\u0438\u043b\u0430 \u0441\u0432\u043e\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435.<\/p>\n<h2 id=\"s4\">while: \u043f\u043e\u043a\u0430 \u0443\u0441\u043b\u043e\u0432\u0438\u0435 \u0438\u0441\u0442\u0438\u043d\u043d\u043e<\/h2>\n<p><code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">while<\/code> \u043d\u0443\u0436\u0435\u043d, \u043a\u043e\u0433\u0434\u0430 \u0447\u0438\u0441\u043b\u043e \u043f\u043e\u0432\u0442\u043e\u0440\u0435\u043d\u0438\u0439 \u0437\u0430\u0440\u0430\u043d\u0435\u0435 \u043d\u0435\u0438\u0437\u0432\u0435\u0441\u0442\u043d\u043e. \u041f\u0440\u0438\u043c\u0435\u0440: \u0437\u0430 \u0441\u043a\u043e\u043b\u044c\u043a\u043e \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0432\u043a\u043b\u0430\u0434 \u0432 1000 \u043f\u0440\u0438 \u0440\u043e\u0441\u0442\u0435 10% \u0432 \u043c\u0435\u0441\u044f\u0446 \u043f\u0440\u0435\u0432\u044b\u0441\u0438\u0442 2000 (\u0443\u0447\u0435\u0431\u043d\u0430\u044f \u043c\u043e\u0434\u0435\u043b\u044c, \u043d\u0435 \u0444\u0438\u043d\u0430\u043d\u0441\u043e\u0432\u044b\u0439 \u0440\u0430\u0441\u0447\u0435\u0442):<\/p>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\"><span style=\"color: #C678DD\">let<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">balance<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">1000<\/span><span style=\"color: #ABB2BF\">;<\/span>\n<span style=\"color: #C678DD\">let<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">months<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">0<\/span><span style=\"color: #ABB2BF\">;<\/span>\n\n<span style=\"color: #C678DD\">while<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #E06C75\">balance<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">&lt;<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">2000<\/span><span style=\"color: #ABB2BF\">) {<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #E06C75\">balance<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">*=<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">1.1<\/span><span style=\"color: #ABB2BF\">;<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #E06C75\">months<\/span><span style=\"color: #56B6C2\">++<\/span><span style=\"color: #ABB2BF\">;<\/span>\n<span style=\"color: #ABB2BF\">}<\/span>\n\n<span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #E06C75\">months<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #E06C75\">balance<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">toFixed<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #D19A66\">2<\/span><span style=\"color: #ABB2BF\">));<\/span><\/code><\/pre>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\">8 2143.59\n<\/code><\/pre>\n<p>\u0423\u0441\u043b\u043e\u0432\u0438\u0435 \u043f\u0440\u043e\u0432\u0435\u0440\u044f\u0435\u0442\u0441\u044f \u043f\u0435\u0440\u0435\u0434 \u043a\u0430\u0436\u0434\u043e\u0439 \u0438\u0442\u0435\u0440\u0430\u0446\u0438\u0435\u0439. \u0415\u0441\u043b\u0438 \u043e\u043d\u043e \u043b\u043e\u0436\u043d\u043e \u0441 \u0441\u0430\u043c\u043e\u0433\u043e \u043d\u0430\u0447\u0430\u043b\u0430, \u0442\u0435\u043b\u043e \u043d\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u0441\u044f \u043d\u0438 \u0440\u0430\u0437\u0443. \u0413\u043b\u0430\u0432\u043d\u044b\u0439 \u0440\u0438\u0441\u043a <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">while<\/code> &#8212; \u0437\u0430\u0431\u044b\u0442\u044c \u0438\u0437\u043c\u0435\u043d\u0438\u0442\u044c \u043f\u0435\u0440\u0435\u043c\u0435\u043d\u043d\u0443\u044e \u0438\u0437 \u0443\u0441\u043b\u043e\u0432\u0438\u044f: \u0442\u043e\u0433\u0434\u0430 \u0446\u0438\u043a\u043b \u0441\u0442\u0430\u043d\u0435\u0442 \u0431\u0435\u0441\u043a\u043e\u043d\u0435\u0447\u043d\u044b\u043c, \u0438 \u0432\u043a\u043b\u0430\u0434\u043a\u0430 \u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0430 \u0438\u043b\u0438 \u043f\u0440\u043e\u0446\u0435\u0441\u0441 Node.js \u0437\u0430\u0432\u0438\u0441\u043d\u0435\u0442.<\/p>\n<h2 id=\"s5\">do&#8230;while: \u0445\u043e\u0442\u044f \u0431\u044b \u043e\u0434\u0438\u043d \u0440\u0430\u0437<\/h2>\n<p>\u0423 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">do...while<\/code> \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u0441\u0442\u043e\u0438\u0442 \u043f\u043e\u0441\u043b\u0435 \u0442\u0435\u043b\u0430, \u043f\u043e\u044d\u0442\u043e\u043c\u0443 \u0442\u0435\u043b\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u0442\u0441\u044f \u043c\u0438\u043d\u0438\u043c\u0443\u043c \u043e\u0434\u0438\u043d \u0440\u0430\u0437. \u0421\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u0435 \u043d\u0430 \u043e\u0434\u043d\u043e\u043c \u0438 \u0442\u043e\u043c \u0436\u0435 \u043b\u043e\u0436\u043d\u043e\u043c \u0443\u0441\u043b\u043e\u0432\u0438\u0438:<\/p>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\"><span style=\"color: #C678DD\">let<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">n<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">10<\/span><span style=\"color: #ABB2BF\">;<\/span>\n\n<span style=\"color: #C678DD\">while<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #E06C75\">n<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">&lt;<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">5<\/span><span style=\"color: #ABB2BF\">) {<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #98C379\">'while:'<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #E06C75\">n<\/span><span style=\"color: #ABB2BF\">);<\/span>\n<span style=\"color: #ABB2BF\">}<\/span>\n\n<span style=\"color: #C678DD\">do<\/span><span style=\"color: #ABB2BF\"> {<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #98C379\">'do...while:'<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #E06C75\">n<\/span><span style=\"color: #ABB2BF\">);<\/span>\n<span style=\"color: #ABB2BF\">} <\/span><span style=\"color: #C678DD\">while<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #E06C75\">n<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">&lt;<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">5<\/span><span style=\"color: #ABB2BF\">);<\/span><\/code><\/pre>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\">do...while: 10\n<\/code><\/pre>\n<p><code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">while<\/code> \u043d\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u043b\u0441\u044f \u043d\u0438 \u0440\u0430\u0437\u0443, <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">do...while<\/code> &#8212; \u043e\u0434\u0438\u043d \u0440\u0430\u0437. \u0422\u0438\u043f\u0438\u0447\u043d\u044b\u0439 \u0441\u0446\u0435\u043d\u0430\u0440\u0438\u0439: \u0437\u0430\u043f\u0440\u043e\u0441\u0438\u0442\u044c \u0432\u0432\u043e\u0434 \u0438 \u043f\u043e\u0432\u0442\u043e\u0440\u044f\u0442\u044c \u0437\u0430\u043f\u0440\u043e\u0441, \u043f\u043e\u043a\u0430 \u043e\u043d \u043d\u0435\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0435\u043d. \u041f\u043e\u0441\u043b\u0435 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">while (...)<\/code> \u0432 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">do...while<\/code> \u043f\u0440\u0438\u043d\u044f\u0442\u043e \u0441\u0442\u0430\u0432\u0438\u0442\u044c \u0442\u043e\u0447\u043a\u0443 \u0441 \u0437\u0430\u043f\u044f\u0442\u043e\u0439. \u0421\u0442\u0440\u043e\u0433\u043e \u043e\u043d\u0430 \u043d\u0435 \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u0430: \u0434\u043b\u044f <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">do...while<\/code> \u0432 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u0435\u0441\u0442\u044c \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u043e\u0435 \u043f\u0440\u0430\u0432\u0438\u043b\u043e \u0430\u0432\u0442\u043e\u043f\u043e\u0434\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438, \u0438 \u043a\u043e\u0434 \u0431\u0435\u0437 \u043d\u0435\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u0441\u044f, \u043d\u043e \u044f\u0432\u043d\u0430\u044f \u0442\u043e\u0447\u043a\u0430 \u0441 \u0437\u0430\u043f\u044f\u0442\u043e\u0439 \u0441\u043d\u0438\u043c\u0430\u0435\u0442 \u0432\u043e\u043f\u0440\u043e\u0441\u044b \u043f\u0440\u0438 \u0447\u0442\u0435\u043d\u0438\u0438.<\/p>\n<h2 id=\"s6\">for&#8230;of \u0438 for&#8230;in: \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0442\u0438\u0432 \u043a\u043b\u044e\u0447\u0435\u0439<\/h2>\n<p>\u042d\u0442\u043e \u0441\u0430\u043c\u0430\u044f \u0447\u0430\u0441\u0442\u0430\u044f \u043f\u0443\u0442\u0430\u043d\u0438\u0446\u0430. \u041a\u043e\u0440\u043e\u0442\u043a\u043e: <strong><code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...of<\/code> \u043f\u0435\u0440\u0435\u0431\u0438\u0440\u0430\u0435\u0442 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f \u0438\u0442\u0435\u0440\u0438\u0440\u0443\u0435\u043c\u043e\u0433\u043e \u043e\u0431\u044a\u0435\u043a\u0442\u0430, <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...in<\/code> &#8212; \u0438\u043c\u0435\u043d\u0430 \u043f\u0435\u0440\u0435\u0447\u0438\u0441\u043b\u044f\u0435\u043c\u044b\u0445 \u0441\u0432\u043e\u0439\u0441\u0442\u0432<\/strong>, \u0432\u043a\u043b\u044e\u0447\u0430\u044f \u0443\u043d\u0430\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u043d\u043d\u044b\u0435, \u043f\u0440\u0438\u0447\u0435\u043c \u043a\u043b\u044e\u0447\u0438 \u0432\u0441\u0435\u0433\u0434\u0430 \u0441\u0442\u0440\u043e\u043a\u0438.<\/p>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\"><span style=\"color: #C678DD\">const<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">langs<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> [<\/span><span style=\"color: #98C379\">'js'<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #98C379\">'ts'<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #98C379\">'py'<\/span><span style=\"color: #ABB2BF\">];<\/span>\n<span style=\"color: #E06C75\">langs<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">extra<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #98C379\">'\u0441\u0432\u043e\u0439\u0441\u0442\u0432\u043e'<\/span><span style=\"color: #ABB2BF\">;<\/span>\n<span style=\"color: #E5C07B\">Array<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">prototype<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">bad<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #C678DD\">function<\/span><span style=\"color: #ABB2BF\"> () {};<\/span>\n\n<span style=\"color: #C678DD\">for<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #C678DD\">const<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">key<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">in<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">langs<\/span><span style=\"color: #ABB2BF\">) {<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #98C379\">'for...in:'<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #E06C75\">key<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #56B6C2\">typeof<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">key<\/span><span style=\"color: #ABB2BF\">);<\/span>\n<span style=\"color: #ABB2BF\">}<\/span>\n\n<span style=\"color: #C678DD\">for<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #C678DD\">const<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">value<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #C678DD\">of<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">langs<\/span><span style=\"color: #ABB2BF\">) {<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #98C379\">'for...of:'<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #E06C75\">value<\/span><span style=\"color: #ABB2BF\">);<\/span>\n<span style=\"color: #ABB2BF\">}<\/span>\n\n<span style=\"color: #56B6C2\">delete<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E5C07B\">Array<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">prototype<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">bad<\/span><span style=\"color: #ABB2BF\">;<\/span><\/code><\/pre>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\">for...in: 0 string\nfor...in: 1 string\nfor...in: 2 string\nfor...in: extra string\nfor...in: bad string\nfor...of: js\nfor...of: ts\nfor...of: py\n<\/code><\/pre>\n<p><code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...in<\/code> \u0437\u0430\u0446\u0435\u043f\u0438\u043b \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u0441\u043a\u043e\u0435 \u0441\u0432\u043e\u0439\u0441\u0442\u0432\u043e <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">extra<\/code> \u0438 \u043c\u0435\u0442\u043e\u0434 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">bad<\/code>, \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u043d\u044b\u0439 \u0432 \u043f\u0440\u043e\u0442\u043e\u0442\u0438\u043f (\u0432 \u0440\u0435\u0430\u043b\u044c\u043d\u043e\u043c \u043a\u043e\u0434\u0435 \u0442\u0430\u043a \u0434\u0435\u043b\u0430\u0442\u044c \u043d\u0435 \u043d\u0430\u0434\u043e &#8212; \u0437\u0434\u0435\u0441\u044c \u044d\u0442\u043e \u0434\u0435\u043c\u043e\u043d\u0441\u0442\u0440\u0430\u0446\u0438\u044f). <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...of<\/code> \u043f\u0440\u043e\u0448\u0435\u043b \u0440\u043e\u0432\u043d\u043e \u043f\u043e \u0442\u0440\u0435\u043c \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u0430\u043c. \u0412\u044b\u0432\u043e\u0434: \u0434\u043b\u044f \u043c\u0430\u0441\u0441\u0438\u0432\u043e\u0432 &#8212; <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...of<\/code> \u0438\u043b\u0438 \u043e\u0431\u044b\u0447\u043d\u044b\u0439 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for<\/code>, \u0430 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...in<\/code> &#8212; \u0434\u043b\u044f \u043e\u0431\u044a\u0435\u043a\u0442\u043e\u0432.<\/p>\n<p>\u041f\u043e\u0440\u044f\u0434\u043e\u043a \u043a\u043b\u044e\u0447\u0435\u0439 \u0432 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...in<\/code> \u0442\u043e\u0436\u0435 \u043d\u0435 \u043f\u043e\u0440\u044f\u0434\u043e\u043a \u0437\u0430\u043f\u0438\u0441\u0438: \u043a\u043b\u044e\u0447\u0438-\u0438\u043d\u0434\u0435\u043a\u0441\u044b \u043c\u0430\u0441\u0441\u0438\u0432\u0430 (\u043d\u0435\u043e\u0442\u0440\u0438\u0446\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u0446\u0435\u043b\u044b\u0435 \u043e\u0442 0 \u0434\u043e 4294967294) \u0438\u0434\u0443\u0442 \u043f\u0435\u0440\u0432\u044b\u043c\u0438 \u043f\u043e \u0432\u043e\u0437\u0440\u0430\u0441\u0442\u0430\u043d\u0438\u044e, \u0437\u0430\u0442\u0435\u043c \u043e\u0441\u0442\u0430\u043b\u044c\u043d\u044b\u0435 \u0441\u0442\u0440\u043e\u043a\u043e\u0432\u044b\u0435 \u0432 \u043f\u043e\u0440\u044f\u0434\u043a\u0435 \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u044f. \u0414\u043b\u044f <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">{ b: 1, 2: 'two', a: 2, 1: 'one' }<\/code> \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u0441\u044f <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">1, 2, b, a<\/code>. \u041a\u043b\u044e\u0447\u0438 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">'-1'<\/code> \u0438\u043b\u0438 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">'4294967295'<\/code> \u0438\u043d\u0434\u0435\u043a\u0441\u0430\u043c\u0438 \u043d\u0435 \u0441\u0447\u0438\u0442\u0430\u044e\u0442\u0441\u044f \u0438 \u0441\u0442\u043e\u044f\u0442 \u0432 \u043f\u043e\u0440\u044f\u0434\u043a\u0435 \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u044f, \u043a\u0430\u043a \u043e\u0431\u044b\u0447\u043d\u044b\u0435 \u0441\u0442\u0440\u043e\u043a\u0438.<\/p>\n<h3>\u041a\u0430\u043a \u043f\u0435\u0440\u0435\u0431\u0440\u0430\u0442\u044c \u043e\u0431\u044b\u0447\u043d\u044b\u0439 \u043e\u0431\u044a\u0435\u043a\u0442<\/h3>\n<p>\u041d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0441\u043f\u043e\u0441\u043e\u0431 &#8212; <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">Object.entries<\/code>: \u043e\u043d \u0431\u0435\u0440\u0435\u0442 \u0442\u043e\u043b\u044c\u043a\u043e \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0435 \u043f\u0435\u0440\u0435\u0447\u0438\u0441\u043b\u044f\u0435\u043c\u044b\u0435 \u0441\u0432\u043e\u0439\u0441\u0442\u0432\u0430 \u0438 \u043e\u0442\u0434\u0430\u0435\u0442 \u043f\u0430\u0440\u044b \u043a\u043b\u044e\u0447-\u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0443\u0434\u043e\u0431\u043d\u043e \u0440\u0430\u0437\u043e\u0431\u0440\u0430\u0442\u044c \u0432 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...of<\/code>:<\/p>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\"><span style=\"color: #C678DD\">const<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">user<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> { <\/span><span style=\"color: #E06C75\">name<\/span><span style=\"color: #56B6C2\">:<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #98C379\">'\u0410\u043d\u043d\u0430'<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #E06C75\">age<\/span><span style=\"color: #56B6C2\">:<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">30<\/span><span style=\"color: #ABB2BF\"> };<\/span>\n\n<span style=\"color: #C678DD\">for<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #C678DD\">const<\/span><span style=\"color: #ABB2BF\"> [<\/span><span style=\"color: #E06C75\">key<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #E06C75\">value<\/span><span style=\"color: #ABB2BF\">] <\/span><span style=\"color: #C678DD\">of<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E5C07B\">Object<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">entries<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #E06C75\">user<\/span><span style=\"color: #ABB2BF\">)) {<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #98C379\">`${<\/span><span style=\"color: #E06C75\">key<\/span><span style=\"color: #98C379\">} = ${<\/span><span style=\"color: #E06C75\">value<\/span><span style=\"color: #98C379\">}`<\/span><span style=\"color: #ABB2BF\">);<\/span>\n<span style=\"color: #ABB2BF\">}<\/span>\n\n<span style=\"color: #C678DD\">try<\/span><span style=\"color: #ABB2BF\"> {<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #C678DD\">for<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #C678DD\">const<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">x<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #C678DD\">of<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">user<\/span><span style=\"color: #ABB2BF\">) <\/span><span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #E06C75\">x<\/span><span style=\"color: #ABB2BF\">);<\/span>\n<span style=\"color: #ABB2BF\">} <\/span><span style=\"color: #C678DD\">catch<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #E06C75\">e<\/span><span style=\"color: #ABB2BF\">) {<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #E06C75\">e<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #C678DD\">constructor<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">name<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">+<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #98C379\">': '<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">+<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">e<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">message<\/span><span style=\"color: #ABB2BF\">);<\/span>\n<span style=\"color: #ABB2BF\">}<\/span><\/code><\/pre>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\">name = \u0410\u043d\u043d\u0430\nage = 30\nTypeError: user is not iterable\n<\/code><\/pre>\n<p>\u0412\u0442\u043e\u0440\u0430\u044f \u0447\u0430\u0441\u0442\u044c \u043f\u043e\u043a\u0430\u0437\u044b\u0432\u0430\u0435\u0442, \u0447\u0442\u043e \u0431\u0443\u0434\u0435\u0442, \u0435\u0441\u043b\u0438 \u043f\u0440\u0438\u043c\u0435\u043d\u0438\u0442\u044c <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...of<\/code> \u043a \u043e\u0431\u044a\u0435\u043a\u0442\u0443 \u043d\u0430\u043f\u0440\u044f\u043c\u0443\u044e: \u043e\u0448\u0438\u0431\u043a\u0430 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">TypeError<\/code>, \u043f\u043e\u0442\u043e\u043c\u0443 \u0447\u0442\u043e \u0443 \u043e\u0431\u044a\u0435\u043a\u0442\u0430 \u043d\u0435\u0442 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">Symbol.iterator<\/code>.<\/p>\n<h3>\u0421\u0442\u0440\u043e\u043a\u0438: for&#8230;of \u0432\u0438\u0434\u0438\u0442 \u0441\u0438\u043c\u0432\u043e\u043b\u044b, \u0438\u043d\u0434\u0435\u043a\u0441 &#8212; \u043a\u043e\u0434\u043e\u0432\u044b\u0435 \u0435\u0434\u0438\u043d\u0438\u0446\u044b<\/h3>\n<p>\u0421\u0442\u0440\u043e\u043a\u0430 \u0432 JavaScript &#8212; \u044d\u0442\u043e \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u044c 16-\u0431\u0438\u0442\u043d\u044b\u0445 \u043a\u043e\u0434\u043e\u0432\u044b\u0445 \u0435\u0434\u0438\u043d\u0438\u0446 UTF-16. \u0421\u0438\u043c\u0432\u043e\u043b\u044b \u0437\u0430 \u043f\u0440\u0435\u0434\u0435\u043b\u0430\u043c\u0438 \u0431\u0430\u0437\u043e\u0432\u043e\u0439 \u043f\u043b\u043e\u0441\u043a\u043e\u0441\u0442\u0438 Unicode, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440 \u044d\u043c\u043e\u0434\u0437\u0438 \ud83d\ude00, \u0437\u0430\u043d\u0438\u043c\u0430\u044e\u0442 \u0434\u0432\u0435 \u0435\u0434\u0438\u043d\u0438\u0446\u044b (\u0441\u0443\u0440\u0440\u043e\u0433\u0430\u0442\u043d\u0443\u044e \u043f\u0430\u0440\u0443), \u0438 \u0446\u0438\u043a\u043b \u043f\u043e \u0438\u043d\u0434\u0435\u043a\u0441\u0443 \u0440\u0430\u0437\u0440\u0435\u0436\u0435\u0442 \u0442\u0430\u043a\u043e\u0439 \u0441\u0438\u043c\u0432\u043e\u043b \u043f\u043e\u043f\u043e\u043b\u0430\u043c:<\/p>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\"><span style=\"color: #C678DD\">const<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">word<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #98C379\">'Hi\ud83d\ude00'<\/span><span style=\"color: #ABB2BF\">;<\/span>\n\n<span style=\"color: #C678DD\">for<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #C678DD\">let<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">0<\/span><span style=\"color: #ABB2BF\">; <\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">&lt;<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">word<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">length<\/span><span style=\"color: #ABB2BF\">; <\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #56B6C2\">++<\/span><span style=\"color: #ABB2BF\">) {<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #98C379\">'index'<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #E5C07B\">JSON<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">stringify<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #E06C75\">word<\/span><span style=\"color: #ABB2BF\">[<\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\">]));<\/span>\n<span style=\"color: #ABB2BF\">}<\/span>\n\n<span style=\"color: #C678DD\">for<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #C678DD\">const<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">ch<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #C678DD\">of<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">word<\/span><span style=\"color: #ABB2BF\">) {<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #98C379\">'of'<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #E06C75\">ch<\/span><span style=\"color: #ABB2BF\">);<\/span>\n<span style=\"color: #ABB2BF\">}<\/span>\n<span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #E06C75\">word<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">length<\/span><span style=\"color: #ABB2BF\">, [...<\/span><span style=\"color: #E06C75\">word<\/span><span style=\"color: #ABB2BF\">].<\/span><span style=\"color: #E06C75\">length<\/span><span style=\"color: #ABB2BF\">);<\/span><\/code><\/pre>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\">index 0 &quot;H&quot;\nindex 1 &quot;i&quot;\nindex 2 &quot;\\ud83d&quot;\nindex 3 &quot;\\ude00&quot;\nof H\nof i\nof \ud83d\ude00\n4 3\n<\/code><\/pre>\n<p><code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...of<\/code> \u0438\u0434\u0435\u0442 \u043f\u043e \u043a\u043e\u0434\u043e\u0432\u044b\u043c \u0442\u043e\u0447\u043a\u0430\u043c, \u043f\u043e\u044d\u0442\u043e\u043c\u0443 \u044d\u043c\u043e\u0434\u0437\u0438 \u0446\u0435\u043b\u044b\u0439. \u0413\u0440\u0430\u043d\u0438\u0446\u0430: \u0441\u043b\u043e\u0436\u043d\u044b\u0435 \u044d\u043c\u043e\u0434\u0437\u0438 \u0438\u0437 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u0438\u0445 \u043a\u043e\u0434\u043e\u0432\u044b\u0445 \u0442\u043e\u0447\u0435\u043a (\u0444\u043b\u0430\u0433\u0438, \u0441\u0435\u043c\u044c\u044f, \u044d\u043c\u043e\u0434\u0437\u0438 \u0441 \u043e\u0442\u0442\u0435\u043d\u043a\u043e\u043c \u043a\u043e\u0436\u0438) <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...of<\/code> \u0442\u043e\u0436\u0435 \u0440\u0430\u0437\u0434\u0435\u043b\u0438\u0442 &#8212; \u0434\u043b\u044f \u0432\u0438\u0434\u0438\u043c\u044b\u0445 \u0441\u0438\u043c\u0432\u043e\u043b\u043e\u0432 \u043d\u0443\u0436\u0435\u043d <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">Intl.Segmenter<\/code>.<\/p>\n<h2 id=\"s7\">forEach: \u043c\u0435\u0442\u043e\u0434, \u0430 \u043d\u0435 \u0446\u0438\u043a\u043b<\/h2>\n<p><code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">arr.forEach(fn)<\/code> \u0432\u044b\u0437\u044b\u0432\u0430\u0435\u0442 \u0444\u0443\u043d\u043a\u0446\u0438\u044e \u0434\u043b\u044f \u043a\u0430\u0436\u0434\u043e\u0433\u043e \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u0430. \u042d\u0442\u043e \u0443\u0434\u043e\u0431\u043d\u043e, \u043d\u043e \u0443 \u043c\u0435\u0442\u043e\u0434\u0430 \u0434\u0432\u0430 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u044f, \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043d\u0435\u0442 \u0443 \u043e\u043f\u0435\u0440\u0430\u0442\u043e\u0440\u043e\u0432 \u0446\u0438\u043a\u043b\u0430. \u041f\u0435\u0440\u0432\u043e\u0435 &#8212; \u0438\u0437 \u043d\u0435\u0433\u043e \u043d\u0435\u043b\u044c\u0437\u044f \u0432\u044b\u0439\u0442\u0438 \u0447\u0435\u0440\u0435\u0437 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">break<\/code> (\u044d\u0442\u043e \u0441\u0438\u043d\u0442\u0430\u043a\u0441\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u043e\u0448\u0438\u0431\u043a\u0430), \u0430 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">return<\/code> \u0432\u043d\u0443\u0442\u0440\u0438 \u043a\u043e\u043b\u0431\u044d\u043a\u0430 \u043b\u0438\u0448\u044c \u043f\u0440\u043e\u043f\u0443\u0441\u043a\u0430\u0435\u0442 \u0442\u0435\u043a\u0443\u0449\u0438\u0439 \u044d\u043b\u0435\u043c\u0435\u043d\u0442, \u043a\u0430\u043a <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">continue<\/code>:<\/p>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\"><span style=\"color: #C678DD\">const<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">nums<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> [<\/span><span style=\"color: #D19A66\">5<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">12<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">8<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">130<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">44<\/span><span style=\"color: #ABB2BF\">];<\/span>\n\n<span style=\"color: #E06C75\">nums<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">forEach<\/span><span style=\"color: #ABB2BF\">((<\/span><span style=\"color: #E06C75\">n<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\">) =&gt; {<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #C678DD\">if<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #E06C75\">n<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">&gt;<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">10<\/span><span style=\"color: #ABB2BF\">) <\/span><span style=\"color: #C678DD\">return<\/span><span style=\"color: #ABB2BF\">;<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #98C379\">'forEach:'<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #E06C75\">n<\/span><span style=\"color: #ABB2BF\">);<\/span>\n<span style=\"color: #ABB2BF\">});<\/span>\n\n<span style=\"color: #C678DD\">for<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #C678DD\">const<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">n<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #C678DD\">of<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">nums<\/span><span style=\"color: #ABB2BF\">) {<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #C678DD\">if<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #E06C75\">n<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">&gt;<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">100<\/span><span style=\"color: #ABB2BF\">) <\/span><span style=\"color: #C678DD\">break<\/span><span style=\"color: #ABB2BF\">;<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #98C379\">'for...of:'<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #E06C75\">n<\/span><span style=\"color: #ABB2BF\">);<\/span>\n<span style=\"color: #ABB2BF\">}<\/span><\/code><\/pre>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\">forEach: 0 5\nforEach: 2 8\nfor...of: 5\nfor...of: 12\nfor...of: 8\n<\/code><\/pre>\n<p>\u0412\u0442\u043e\u0440\u043e\u0435 &#8212; <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">forEach<\/code> \u043d\u0435 \u0436\u0434\u0435\u0442 \u0430\u0441\u0438\u043d\u0445\u0440\u043e\u043d\u043d\u044b\u0435 \u043a\u043e\u043b\u0431\u044d\u043a\u0438. \u0415\u0441\u043b\u0438 \u0432\u043d\u0443\u0442\u0440\u0438 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">await<\/code>, \u043a\u043e\u0434 \u043f\u043e\u0441\u043b\u0435 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">forEach<\/code> \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u0441\u044f \u0440\u0430\u043d\u044c\u0448\u0435, \u0447\u0435\u043c \u0437\u0430\u043a\u043e\u043d\u0447\u0430\u0442\u0441\u044f \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438:<\/p>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\"><span style=\"color: #C678DD\">const<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">wait<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #E06C75\">ms<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #E06C75\">v<\/span><span style=\"color: #ABB2BF\">) =&gt; <\/span><span style=\"color: #56B6C2\">new<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E5C07B\">Promise<\/span><span style=\"color: #ABB2BF\">((<\/span><span style=\"color: #E06C75\">r<\/span><span style=\"color: #ABB2BF\">) =&gt; <\/span><span style=\"color: #E06C75\">setTimeout<\/span><span style=\"color: #ABB2BF\">(() =&gt; <\/span><span style=\"color: #E06C75\">r<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #E06C75\">v<\/span><span style=\"color: #ABB2BF\">), <\/span><span style=\"color: #E06C75\">ms<\/span><span style=\"color: #ABB2BF\">));<\/span>\n\n<span style=\"color: #C678DD\">async<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #C678DD\">function<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">main<\/span><span style=\"color: #ABB2BF\">() {<\/span>\n<span style=\"color: #ABB2BF\">  [<\/span><span style=\"color: #D19A66\">1<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">2<\/span><span style=\"color: #ABB2BF\">].<\/span><span style=\"color: #E06C75\">forEach<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #C678DD\">async<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #E06C75\">n<\/span><span style=\"color: #ABB2BF\">) =&gt; {<\/span>\n<span style=\"color: #ABB2BF\">    <\/span><span style=\"color: #C678DD\">await<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">wait<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #D19A66\">10<\/span><span style=\"color: #ABB2BF\">);<\/span>\n<span style=\"color: #ABB2BF\">    <\/span><span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #98C379\">'forEach \u0433\u043e\u0442\u043e\u0432\u043e:'<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #E06C75\">n<\/span><span style=\"color: #ABB2BF\">);<\/span>\n<span style=\"color: #ABB2BF\">  });<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #98C379\">'\u043f\u043e\u0441\u043b\u0435 forEach'<\/span><span style=\"color: #ABB2BF\">);<\/span>\n\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #C678DD\">for<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #C678DD\">const<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">n<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #C678DD\">of<\/span><span style=\"color: #ABB2BF\"> [<\/span><span style=\"color: #D19A66\">1<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">2<\/span><span style=\"color: #ABB2BF\">]) {<\/span>\n<span style=\"color: #ABB2BF\">    <\/span><span style=\"color: #C678DD\">await<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">wait<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #D19A66\">10<\/span><span style=\"color: #ABB2BF\">);<\/span>\n<span style=\"color: #ABB2BF\">    <\/span><span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #98C379\">'for...of \u0433\u043e\u0442\u043e\u0432\u043e:'<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #E06C75\">n<\/span><span style=\"color: #ABB2BF\">);<\/span>\n<span style=\"color: #ABB2BF\">  }<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #98C379\">'\u043f\u043e\u0441\u043b\u0435 for...of'<\/span><span style=\"color: #ABB2BF\">);<\/span>\n<span style=\"color: #ABB2BF\">}<\/span>\n\n<span style=\"color: #E06C75\">main<\/span><span style=\"color: #ABB2BF\">();<\/span><\/code><\/pre>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\">\u043f\u043e\u0441\u043b\u0435 forEach\nforEach \u0433\u043e\u0442\u043e\u0432\u043e: 1\nforEach \u0433\u043e\u0442\u043e\u0432\u043e: 2\nfor...of \u0433\u043e\u0442\u043e\u0432\u043e: 1\nfor...of \u0433\u043e\u0442\u043e\u0432\u043e: 2\n\u043f\u043e\u0441\u043b\u0435 for...of\n<\/code><\/pre>\n<p>\u0414\u043b\u044f \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0439 \u0430\u0441\u0438\u043d\u0445\u0440\u043e\u043d\u043d\u043e\u0439 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0431\u0435\u0440\u0443\u0442 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...of<\/code> \u0441 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">await<\/code>. \u0415\u0441\u043b\u0438 \u043d\u0443\u0436\u0435\u043d \u043d\u043e\u0432\u044b\u0439 \u043c\u0430\u0441\u0441\u0438\u0432 \u0438\u0437 \u0441\u0442\u0430\u0440\u043e\u0433\u043e, \u0432\u043c\u0435\u0441\u0442\u043e \u0446\u0438\u043a\u043b\u0430 \u0441 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">push<\/code> \u043e\u0431\u044b\u0447\u043d\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0442 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">map<\/code> \u0438\u043b\u0438 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">filter<\/code> &#8212; \u044d\u0442\u043e \u0443\u0436\u0435 \u0442\u0435\u043c\u0430 \u043c\u0435\u0442\u043e\u0434\u043e\u0432 \u043c\u0430\u0441\u0441\u0438\u0432\u043e\u0432, \u0430 \u043d\u0435 \u0446\u0438\u043a\u043b\u043e\u0432.<\/p>\n<h2 id=\"s8\">break, continue \u0438 \u043c\u0435\u0442\u043a\u0438<\/h2>\n<p><code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">break<\/code> \u043f\u043e\u043b\u043d\u043e\u0441\u0442\u044c\u044e \u0437\u0430\u0432\u0435\u0440\u0448\u0430\u0435\u0442 \u0431\u043b\u0438\u0436\u0430\u0439\u0448\u0438\u0439 \u0446\u0438\u043a\u043b, <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">continue<\/code> \u043f\u0440\u043e\u043f\u0443\u0441\u043a\u0430\u0435\u0442 \u043e\u0441\u0442\u0430\u0442\u043e\u043a \u0442\u0435\u043a\u0443\u0449\u0435\u0439 \u0438\u0442\u0435\u0440\u0430\u0446\u0438\u0438 \u0438 \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u0438\u0442 \u043a \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0435\u0439. \u0412\u043e \u0432\u043b\u043e\u0436\u0435\u043d\u043d\u044b\u0445 \u0446\u0438\u043a\u043b\u0430\u0445 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">break<\/code> \u0432\u044b\u0445\u043e\u0434\u0438\u0442 \u0442\u043e\u043b\u044c\u043a\u043e \u0438\u0437 \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0435\u0433\u043e. \u0427\u0442\u043e\u0431\u044b \u0432\u044b\u0439\u0442\u0438 \u0441\u0440\u0430\u0437\u0443 \u0438\u0437 \u043e\u0431\u043e\u0438\u0445, \u0441\u0442\u0430\u0432\u044f\u0442 <strong>\u043c\u0435\u0442\u043a\u0443<\/strong> &#8212; \u0438\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440 \u0441 \u0434\u0432\u043e\u0435\u0442\u043e\u0447\u0438\u0435\u043c \u043f\u0435\u0440\u0435\u0434 \u0432\u043d\u0435\u0448\u043d\u0438\u043c \u0446\u0438\u043a\u043b\u043e\u043c:<\/p>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\"><span style=\"color: #C678DD\">const<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">matrix<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> [<\/span>\n<span style=\"color: #ABB2BF\">  [<\/span><span style=\"color: #D19A66\">3<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">8<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">1<\/span><span style=\"color: #ABB2BF\">],<\/span>\n<span style=\"color: #ABB2BF\">  [<\/span><span style=\"color: #D19A66\">7<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #56B6C2\">-<\/span><span style=\"color: #D19A66\">2<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">5<\/span><span style=\"color: #ABB2BF\">],<\/span>\n<span style=\"color: #ABB2BF\">  [<\/span><span style=\"color: #D19A66\">4<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">6<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #56B6C2\">-<\/span><span style=\"color: #D19A66\">9<\/span><span style=\"color: #ABB2BF\">],<\/span>\n<span style=\"color: #ABB2BF\">];<\/span>\n\n<span style=\"color: #E06C75\">outer<\/span><span style=\"color: #56B6C2\">:<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #C678DD\">for<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #C678DD\">let<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">row<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">0<\/span><span style=\"color: #ABB2BF\">; <\/span><span style=\"color: #E06C75\">row<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">&lt;<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">matrix<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">length<\/span><span style=\"color: #ABB2BF\">; <\/span><span style=\"color: #E06C75\">row<\/span><span style=\"color: #56B6C2\">++<\/span><span style=\"color: #ABB2BF\">) {<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #C678DD\">for<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #C678DD\">let<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">col<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">0<\/span><span style=\"color: #ABB2BF\">; <\/span><span style=\"color: #E06C75\">col<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">&lt;<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">matrix<\/span><span style=\"color: #ABB2BF\">[<\/span><span style=\"color: #E06C75\">row<\/span><span style=\"color: #ABB2BF\">].<\/span><span style=\"color: #E06C75\">length<\/span><span style=\"color: #ABB2BF\">; <\/span><span style=\"color: #E06C75\">col<\/span><span style=\"color: #56B6C2\">++<\/span><span style=\"color: #ABB2BF\">) {<\/span>\n<span style=\"color: #ABB2BF\">    <\/span><span style=\"color: #C678DD\">if<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #E06C75\">matrix<\/span><span style=\"color: #ABB2BF\">[<\/span><span style=\"color: #E06C75\">row<\/span><span style=\"color: #ABB2BF\">][<\/span><span style=\"color: #E06C75\">col<\/span><span style=\"color: #ABB2BF\">] <\/span><span style=\"color: #56B6C2\">&lt;<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">0<\/span><span style=\"color: #ABB2BF\">) {<\/span>\n<span style=\"color: #ABB2BF\">      <\/span><span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #98C379\">`\u043f\u0435\u0440\u0432\u043e\u0435 \u043e\u0442\u0440\u0438\u0446\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0435: ${<\/span><span style=\"color: #E06C75\">matrix<\/span><span style=\"color: #ABB2BF\">[<\/span><span style=\"color: #E06C75\">row<\/span><span style=\"color: #ABB2BF\">][<\/span><span style=\"color: #E06C75\">col<\/span><span style=\"color: #ABB2BF\">]<\/span><span style=\"color: #98C379\">} \u0432 [${<\/span><span style=\"color: #E06C75\">row<\/span><span style=\"color: #98C379\">}][${<\/span><span style=\"color: #E06C75\">col<\/span><span style=\"color: #98C379\">}]`<\/span><span style=\"color: #ABB2BF\">);<\/span>\n<span style=\"color: #ABB2BF\">      <\/span><span style=\"color: #C678DD\">break<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">outer<\/span><span style=\"color: #ABB2BF\">;<\/span>\n<span style=\"color: #ABB2BF\">    }<\/span>\n<span style=\"color: #ABB2BF\">  }<\/span>\n<span style=\"color: #ABB2BF\">}<\/span>\n\n<span style=\"color: #C678DD\">for<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #C678DD\">const<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">n<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #C678DD\">of<\/span><span style=\"color: #ABB2BF\"> [<\/span><span style=\"color: #D19A66\">1<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">2<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">3<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">4<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">5<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">6<\/span><span style=\"color: #ABB2BF\">]) {<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #C678DD\">if<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #E06C75\">n<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">%<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">2<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">===<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">0<\/span><span style=\"color: #ABB2BF\">) <\/span><span style=\"color: #C678DD\">continue<\/span><span style=\"color: #ABB2BF\">;<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #98C379\">'\u043d\u0435\u0447\u0435\u0442\u043d\u043e\u0435:'<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #E06C75\">n<\/span><span style=\"color: #ABB2BF\">);<\/span>\n<span style=\"color: #ABB2BF\">}<\/span><\/code><\/pre>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\">\u043f\u0435\u0440\u0432\u043e\u0435 \u043e\u0442\u0440\u0438\u0446\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0435: -2 \u0432 [1][1]\n\u043d\u0435\u0447\u0435\u0442\u043d\u043e\u0435: 1\n\u043d\u0435\u0447\u0435\u0442\u043d\u043e\u0435: 3\n\u043d\u0435\u0447\u0435\u0442\u043d\u043e\u0435: 5\n<\/code><\/pre>\n<p>\u0411\u0435\u0437 \u043c\u0435\u0442\u043a\u0438 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">break<\/code> \u0432\u044b\u0448\u0435\u043b \u0431\u044b \u0442\u043e\u043b\u044c\u043a\u043e \u0438\u0437 \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0435\u0433\u043e \u0446\u0438\u043a\u043b\u0430, \u0438 \u043f\u043e\u0438\u0441\u043a \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0438\u043b\u0441\u044f \u0431\u044b \u043d\u0430 \u0442\u0440\u0435\u0442\u044c\u0435\u0439 \u0441\u0442\u0440\u043e\u043a\u0435, \u043d\u0430\u0439\u0434\u044f \u0435\u0449\u0435 -9. \u041c\u0435\u0442\u043a\u0438 \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0442 \u0441 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for<\/code>, <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">while<\/code>, <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">do...while<\/code>, <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...of<\/code>, <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...in<\/code>, \u043d\u043e \u043d\u0435 \u0441 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">forEach<\/code>. \u0415\u0441\u043b\u0438 \u043c\u0435\u0442\u043a\u0430 \u043f\u043e\u043d\u0430\u0434\u043e\u0431\u0438\u043b\u0430\u0441\u044c \u0432 \u0433\u043b\u0443\u0431\u043e\u043a\u043e\u0439 \u0432\u043b\u043e\u0436\u0435\u043d\u043d\u043e\u0441\u0442\u0438, \u0447\u0430\u0441\u0442\u043e \u0447\u0438\u0442\u0430\u0435\u043c\u0435\u0435 \u0432\u044b\u043d\u0435\u0441\u0442\u0438 \u043f\u043e\u0438\u0441\u043a \u0432 \u0444\u0443\u043d\u043a\u0446\u0438\u044e \u0438 \u0432\u044b\u0439\u0442\u0438 \u0447\u0435\u0440\u0435\u0437 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">return<\/code>.<\/p>\n<h2 id=\"s9\">\u0422\u0438\u043f\u0438\u0447\u043d\u044b\u0435 \u043e\u0448\u0438\u0431\u043a\u0438<\/h2>\n<p><strong>\u0412\u044b\u0445\u043e\u0434 \u0437\u0430 \u0433\u0440\u0430\u043d\u0438\u0446\u0443 \u043c\u0430\u0441\u0441\u0438\u0432\u0430.<\/strong> \u0423\u0441\u043b\u043e\u0432\u0438\u0435 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">&lt;=<\/code> \u0432\u043c\u0435\u0441\u0442\u043e <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">&lt;<\/code> \u0434\u0430\u0435\u0442 \u043b\u0438\u0448\u043d\u044e\u044e \u0438\u0442\u0435\u0440\u0430\u0446\u0438\u044e:<\/p>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\"><span style=\"color: #C678DD\">const<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">arr<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> [<\/span><span style=\"color: #D19A66\">10<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">20<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">30<\/span><span style=\"color: #ABB2BF\">];<\/span>\n<span style=\"color: #C678DD\">for<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #C678DD\">let<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">0<\/span><span style=\"color: #ABB2BF\">; <\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">&lt;=<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">arr<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">length<\/span><span style=\"color: #ABB2BF\">; <\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #56B6C2\">++<\/span><span style=\"color: #ABB2BF\">) {<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #E06C75\">arr<\/span><span style=\"color: #ABB2BF\">[<\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\">]);<\/span>\n<span style=\"color: #ABB2BF\">}<\/span><\/code><\/pre>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\">0 10\n1 20\n2 30\n3 undefined\n<\/code><\/pre>\n<p>\u041e\u0448\u0438\u0431\u043a\u0438 \u043d\u0435\u0442, \u043d\u043e \u043f\u043e\u044f\u0432\u0438\u043b\u0441\u044f <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">undefined<\/code>, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0434\u0430\u043b\u044c\u0448\u0435 \u043c\u043e\u0436\u0435\u0442 \u0438\u0441\u043f\u043e\u0440\u0442\u0438\u0442\u044c \u0440\u0430\u0441\u0447\u0435\u0442. \u0418\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435: <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">i &lt; arr.length<\/code>.<\/p>\n<p><strong>\u0410\u0440\u0438\u0444\u043c\u0435\u0442\u0438\u043a\u0430 \u0441 \u043a\u043b\u044e\u0447\u043e\u043c \u0438\u0437 for&#8230;in.<\/strong> \u041a\u043b\u044e\u0447\u0438 &#8212; \u0441\u0442\u0440\u043e\u043a\u0438, \u043f\u043e\u044d\u0442\u043e\u043c\u0443 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">+<\/code> \u0441\u043a\u043b\u0435\u0438\u0432\u0430\u0435\u0442, \u0430 \u043d\u0435 \u0441\u043a\u043b\u0430\u0434\u044b\u0432\u0430\u0435\u0442:<\/p>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\"><span style=\"color: #C678DD\">const<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">ids<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> [<\/span><span style=\"color: #D19A66\">1<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">2<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">3<\/span><span style=\"color: #ABB2BF\">];<\/span>\n<span style=\"color: #C678DD\">for<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #C678DD\">const<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">in<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">ids<\/span><span style=\"color: #ABB2BF\">) {<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">+<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">1<\/span><span style=\"color: #ABB2BF\">);<\/span>\n<span style=\"color: #ABB2BF\">}<\/span><\/code><\/pre>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\">01\n11\n21\n<\/code><\/pre>\n<p>\u0418\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435: \u0434\u043b\u044f \u043c\u0430\u0441\u0441\u0438\u0432\u0430 &#8212; <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for (let i = 0; i &lt; ids.length; i++)<\/code> \u0438\u043b\u0438 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for (const [i, v] of ids.entries())<\/code>, \u0433\u0434\u0435 \u0438\u043d\u0434\u0435\u043a\u0441 \u0443\u0436\u0435 \u0447\u0438\u0441\u043b\u043e.<\/p>\n<p><strong>\u0423\u0434\u0430\u043b\u0435\u043d\u0438\u0435 \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u043e\u0432 \u0432\u043e \u0432\u0440\u0435\u043c\u044f \u043f\u0440\u043e\u0445\u043e\u0434\u0430 \u0432\u043f\u0435\u0440\u0435\u0434.<\/strong> \u041f\u043e\u0441\u043b\u0435 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">splice<\/code> \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u044b \u0441\u0434\u0432\u0438\u0433\u0430\u044e\u0442\u0441\u044f, \u0438 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0439 \u043f\u0440\u043e\u043f\u0443\u0441\u043a\u0430\u0435\u0442\u0441\u044f:<\/p>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\"><span style=\"color: #C678DD\">const<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">list<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> [<\/span><span style=\"color: #D19A66\">1<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">2<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">2<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">3<\/span><span style=\"color: #ABB2BF\">];<\/span>\n<span style=\"color: #C678DD\">for<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #C678DD\">let<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">0<\/span><span style=\"color: #ABB2BF\">; <\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">&lt;<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">list<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">length<\/span><span style=\"color: #ABB2BF\">; <\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #56B6C2\">++<\/span><span style=\"color: #ABB2BF\">) {<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #C678DD\">if<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #E06C75\">list<\/span><span style=\"color: #ABB2BF\">[<\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\">] <\/span><span style=\"color: #56B6C2\">===<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">2<\/span><span style=\"color: #ABB2BF\">) <\/span><span style=\"color: #E06C75\">list<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">splice<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">1<\/span><span style=\"color: #ABB2BF\">);<\/span>\n<span style=\"color: #ABB2BF\">}<\/span>\n<span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #E06C75\">list<\/span><span style=\"color: #ABB2BF\">);<\/span>\n\n<span style=\"color: #C678DD\">const<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">list2<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> [<\/span><span style=\"color: #D19A66\">1<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">2<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">2<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">3<\/span><span style=\"color: #ABB2BF\">];<\/span>\n<span style=\"color: #C678DD\">for<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #C678DD\">let<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">list2<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">length<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">-<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">1<\/span><span style=\"color: #ABB2BF\">; <\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">&gt;=<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">0<\/span><span style=\"color: #ABB2BF\">; <\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #56B6C2\">--<\/span><span style=\"color: #ABB2BF\">) {<\/span>\n<span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #C678DD\">if<\/span><span style=\"color: #ABB2BF\"> (<\/span><span style=\"color: #E06C75\">list2<\/span><span style=\"color: #ABB2BF\">[<\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\">] <\/span><span style=\"color: #56B6C2\">===<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">2<\/span><span style=\"color: #ABB2BF\">) <\/span><span style=\"color: #E06C75\">list2<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">splice<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #E06C75\">i<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">1<\/span><span style=\"color: #ABB2BF\">);<\/span>\n<span style=\"color: #ABB2BF\">}<\/span>\n<span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #E06C75\">list2<\/span><span style=\"color: #ABB2BF\">);<\/span>\n<span style=\"color: #E06C75\">console<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #E06C75\">log<\/span><span style=\"color: #ABB2BF\">([<\/span><span style=\"color: #D19A66\">1<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">2<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">2<\/span><span style=\"color: #ABB2BF\">, <\/span><span style=\"color: #D19A66\">3<\/span><span style=\"color: #ABB2BF\">].<\/span><span style=\"color: #E06C75\">filter<\/span><span style=\"color: #ABB2BF\">((<\/span><span style=\"color: #E06C75\">x<\/span><span style=\"color: #ABB2BF\">) =&gt; <\/span><span style=\"color: #E06C75\">x<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">!==<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #D19A66\">2<\/span><span style=\"color: #ABB2BF\">));<\/span><\/code><\/pre>\n<pre style=\"background:#282c34;color:#abb2bf;border-radius:8px;padding:16px 20px;margin:20px 0;overflow-x:auto;font-size:14px;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\"><code style=\"background:none\">[ 1, 2, 3 ]\n[ 1, 3 ]\n[ 1, 3 ]\n<\/code><\/pre>\n<p>\u041f\u0435\u0440\u0432\u044b\u0439 \u0432\u0430\u0440\u0438\u0430\u043d\u0442 \u043e\u0441\u0442\u0430\u0432\u0438\u043b \u043e\u0434\u043d\u0443 \u0434\u0432\u043e\u0439\u043a\u0443. \u0418\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 &#8212; \u0438\u0434\u0442\u0438 \u0441 \u043a\u043e\u043d\u0446\u0430 \u0438\u043b\u0438 \u043d\u0435 \u043c\u0435\u043d\u044f\u0442\u044c \u043c\u0430\u0441\u0441\u0438\u0432, \u0430 \u043f\u043e\u0441\u0442\u0440\u043e\u0438\u0442\u044c \u043d\u043e\u0432\u044b\u0439 \u0447\u0435\u0440\u0435\u0437 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">filter<\/code>.<\/p>\n<p><strong>\u0411\u0435\u0441\u043a\u043e\u043d\u0435\u0447\u043d\u044b\u0439 \u0446\u0438\u043a\u043b.<\/strong> \u0415\u0441\u043b\u0438 \u0432 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">while<\/code> \u0443\u0441\u043b\u043e\u0432\u0438\u0435 \u043d\u0438\u043a\u043e\u0433\u0434\u0430 \u043d\u0435 \u0441\u0442\u0430\u043d\u043e\u0432\u0438\u0442\u0441\u044f \u043b\u043e\u0436\u043d\u044b\u043c, \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u043d\u0435 \u0437\u0430\u0432\u0435\u0440\u0448\u0438\u0442\u0441\u044f. \u0421\u0438\u043c\u043f\u0442\u043e\u043c &#8212; \u0437\u0430\u0432\u0438\u0441\u0448\u0430\u044f \u0432\u043a\u043b\u0430\u0434\u043a\u0430 \u0438\u043b\u0438 \u043f\u0440\u043e\u0446\u0435\u0441\u0441, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043d\u0435 \u043e\u0442\u0432\u0435\u0447\u0430\u0435\u0442. \u0412 \u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0435 \u043f\u043e\u043c\u043e\u0433\u0430\u0435\u0442 \u0437\u0430\u043a\u0440\u044b\u0442\u044c \u0432\u043a\u043b\u0430\u0434\u043a\u0443, \u0432 Node.js &#8212; <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">Ctrl+C<\/code>; \u0437\u0430\u0442\u0435\u043c \u043f\u0440\u043e\u0432\u0435\u0440\u0438\u0442\u044c, \u043c\u0435\u043d\u044f\u0435\u0442\u0441\u044f \u043b\u0438 \u0432 \u0442\u0435\u043b\u0435 \u043f\u0435\u0440\u0435\u043c\u0435\u043d\u043d\u0430\u044f \u0438\u0437 \u0443\u0441\u043b\u043e\u0432\u0438\u044f \u0438 \u0434\u043e\u0441\u0442\u0438\u0436\u0438\u043c\u043e \u043b\u0438 \u0443\u0441\u043b\u043e\u0432\u0438\u0435 \u0432\u044b\u0445\u043e\u0434\u0430.<\/p>\n<h2 id=\"s10\">\u0412\u044b\u0432\u043e\u0434\u044b<\/h2>\n<ul>\n<li><code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for<\/code> &#8212; \u043a\u043e\u0433\u0434\u0430 \u043d\u0443\u0436\u0435\u043d \u0438\u043d\u0434\u0435\u043a\u0441 \u0438\u043b\u0438 \u043d\u0435\u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u044b\u0439 \u0448\u0430\u0433; \u0441\u0447\u0435\u0442\u0447\u0438\u043a \u043e\u0431\u044a\u044f\u0432\u043b\u044f\u0439\u0442\u0435 \u0447\u0435\u0440\u0435\u0437 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">let<\/code>.<\/li>\n<li><code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">while<\/code> &#8212; \u0447\u0438\u0441\u043b\u043e \u0448\u0430\u0433\u043e\u0432 \u043d\u0435\u0438\u0437\u0432\u0435\u0441\u0442\u043d\u043e; <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">do...while<\/code> &#8212; \u0442\u0435\u043b\u043e \u0434\u043e\u043b\u0436\u043d\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c\u0441\u044f \u0445\u043e\u0442\u044f \u0431\u044b \u0440\u0430\u0437.<\/li>\n<li><code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...of<\/code> \u043f\u0435\u0440\u0435\u0431\u0438\u0440\u0430\u0435\u0442 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f \u0438\u0442\u0435\u0440\u0438\u0440\u0443\u0435\u043c\u044b\u0445 \u043e\u0431\u044a\u0435\u043a\u0442\u043e\u0432, <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...in<\/code> &#8212; \u0441\u0442\u0440\u043e\u043a\u043e\u0432\u044b\u0435 \u043a\u043b\u044e\u0447\u0438, \u0432\u043a\u043b\u044e\u0447\u0430\u044f \u0443\u043d\u0430\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u043d\u043d\u044b\u0435; \u0434\u043b\u044f \u043c\u0430\u0441\u0441\u0438\u0432\u043e\u0432 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...in<\/code> \u043d\u0435 \u043f\u043e\u0434\u0445\u043e\u0434\u0438\u0442.<\/li>\n<li><code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">forEach<\/code> \u043d\u0435\u043b\u044c\u0437\u044f \u043f\u0440\u0435\u0440\u0432\u0430\u0442\u044c <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">break<\/code> \u0438 \u043e\u043d \u043d\u0435 \u0436\u0434\u0435\u0442 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">await<\/code>; \u0434\u043b\u044f \u0434\u043e\u0441\u0440\u043e\u0447\u043d\u043e\u0433\u043e \u0432\u044b\u0445\u043e\u0434\u0430 \u0438 \u0430\u0441\u0438\u043d\u0445\u0440\u043e\u043d\u043d\u043e\u0441\u0442\u0438 \u0431\u0435\u0440\u0438\u0442\u0435 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...of<\/code>.<\/li>\n<li>\u041c\u0435\u0442\u043a\u0430 \u0441 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">break<\/code> \u0432\u044b\u0445\u043e\u0434\u0438\u0442 \u0441\u0440\u0430\u0437\u0443 \u0438\u0437 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u0438\u0445 \u0432\u043b\u043e\u0436\u0435\u043d\u043d\u044b\u0445 \u0446\u0438\u043a\u043b\u043e\u0432.<\/li>\n<\/ul>\n<h2 id=\"s11\">\u0413\u0434\u0435 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u0442\u0441\u044f \/ \u0441\u0432\u044f\u0437\u044c \u0441 \u043f\u0440\u0430\u043a\u0442\u0438\u043a\u043e\u0439<\/h2>\n<p>\u0426\u0438\u043a\u043b\u044b \u0432 JavaScript \u0432\u0441\u0442\u0440\u0435\u0447\u0430\u044e\u0442\u0441\u044f \u0432\u0435\u0437\u0434\u0435: \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0430 \u043e\u0442\u0432\u0435\u0442\u0430 API, \u043e\u0442\u0440\u0438\u0441\u043e\u0432\u043a\u0430 \u0441\u043f\u0438\u0441\u043a\u0430 \u0442\u043e\u0432\u0430\u0440\u043e\u0432, \u0432\u0430\u043b\u0438\u0434\u0430\u0446\u0438\u044f \u043f\u043e\u043b\u0435\u0439 \u0444\u043e\u0440\u043c\u044b, \u043e\u0431\u0445\u043e\u0434 DOM-\u044d\u043b\u0435\u043c\u0435\u043d\u0442\u043e\u0432 \u0447\u0435\u0440\u0435\u0437 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">NodeList<\/code>. \u041d\u0430 \u043f\u0440\u0430\u043a\u0442\u0438\u043a\u0435 \u0432\u0430\u0436\u043d\u0435\u0435 \u043d\u0435 \u0441\u0438\u043d\u0442\u0430\u043a\u0441\u0438\u0441, \u0430 \u0432\u044b\u0431\u043e\u0440: \u043a\u0430\u043a\u043e\u0439 \u0446\u0438\u043a\u043b \u043d\u0435 \u0437\u0430\u0446\u0435\u043f\u0438\u0442 \u043b\u0438\u0448\u043d\u0438\u0435 \u043a\u043b\u044e\u0447\u0438, \u0433\u0434\u0435 \u043d\u0443\u0436\u0435\u043d \u0434\u043e\u0441\u0440\u043e\u0447\u043d\u044b\u0439 \u0432\u044b\u0445\u043e\u0434 \u0438 \u043a\u0430\u043a \u043d\u0435 \u043f\u043e\u0442\u0435\u0440\u044f\u0442\u044c \u043f\u043e\u0440\u044f\u0434\u043e\u043a \u0430\u0441\u0438\u043d\u0445\u0440\u043e\u043d\u043d\u044b\u0445 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0439.<\/p>\n<div class=\"oj-cta\" style=\"background:#fbf4e4;border-left:4px solid #c9962b;border-radius:8px;padding:16px 20px;margin:24px 0\">\n<p style=\"margin:0 0 8px\"><strong>\u041e\u0441\u0432\u043e\u0439\u0442\u0435 \u0442\u0435\u043c\u0443 \u043d\u0430 \u043f\u0440\u0430\u043a\u0442\u0438\u043a\u0435<\/strong><\/p>\n<p>\u0415\u0441\u043b\u0438 \u0445\u043e\u0442\u0438\u0442\u0435 \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u043e \u0440\u0430\u0437\u043e\u0431\u0440\u0430\u0442\u044c\u0441\u044f \u0441 \u043e\u0441\u043d\u043e\u0432\u0430\u043c\u0438 \u044f\u0437\u044b\u043a\u0430 \u043d\u0430 \u0437\u0430\u0434\u0430\u0447\u0430\u0445, \u043f\u043e\u0441\u043c\u043e\u0442\u0440\u0438\u0442\u0435 \u043a\u0443\u0440\u0441 <a href=\"https:\/\/otus.ru\/lessons\/javascript-basic\/?int_article=java-script-vse-chto-nuzhno-znat-o-ciklah&amp;int_place=article&amp;int_variant=v1\">\u00abJavaScript-\u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a. \u0411\u0430\u0437\u043e\u0432\u044b\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c\u00bb<\/a>. \u0411\u0435\u0441\u043f\u043b\u0430\u0442\u043d\u043e \u043f\u043e\u0437\u043d\u0430\u043a\u043e\u043c\u0438\u0442\u044c\u0441\u044f \u0441 \u0444\u043e\u0440\u043c\u0430\u0442\u043e\u043c \u043c\u043e\u0436\u043d\u043e \u043d\u0430 <a href=\"https:\/\/otus.ru\/events\/?int_article=java-script-vse-chto-nuzhno-znat-o-ciklah&amp;int_place=article&amp;int_variant=v1\">\u043e\u0442\u043a\u0440\u044b\u0442\u044b\u0445 \u0443\u0440\u043e\u043a\u0430\u0445 Otus<\/a>.<\/p>\n<\/div>\n<h2 id=\"s12\">FAQ<\/h2>\n<p><strong>\u041a\u0430\u043a\u043e\u0439 \u0446\u0438\u043a\u043b \u0432 JavaScript \u0441\u0430\u043c\u044b\u0439 \u0431\u044b\u0441\u0442\u0440\u044b\u0439?<\/strong><br \/>\n\u0423\u043d\u0438\u0432\u0435\u0440\u0441\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u043e\u0442\u0432\u0435\u0442\u0430 \u043d\u0435\u0442: \u0440\u0430\u0437\u043d\u0438\u0446\u0430 \u043c\u0435\u0436\u0434\u0443 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for<\/code>, <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...of<\/code> \u0438 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">forEach<\/code> \u0437\u0430\u0432\u0438\u0441\u0438\u0442 \u043e\u0442 \u0434\u0432\u0438\u0436\u043a\u0430, \u0432\u0435\u0440\u0441\u0438\u0438 \u0438 \u0434\u0430\u043d\u043d\u044b\u0445 \u0438 \u0432 \u043e\u0431\u044b\u0447\u043d\u043e\u043c \u043a\u043e\u0434\u0435 \u043e\u0431\u044b\u0447\u043d\u043e \u043d\u0435\u0437\u0430\u043c\u0435\u0442\u043d\u0430. \u0412\u044b\u0431\u0438\u0440\u0430\u0439\u0442\u0435 \u043f\u043e \u0447\u0438\u0442\u0430\u0435\u043c\u043e\u0441\u0442\u0438, \u0430 \u0441\u043a\u043e\u0440\u043e\u0441\u0442\u044c \u0438\u0437\u043c\u0435\u0440\u044f\u0439\u0442\u0435 \u043d\u0430 \u0441\u0432\u043e\u0435\u043c \u0441\u0446\u0435\u043d\u0430\u0440\u0438\u0438.<\/p>\n<p><strong>\u041c\u043e\u0436\u043d\u043e \u043b\u0438 \u043f\u0435\u0440\u0435\u0431\u0440\u0430\u0442\u044c Map \u0438\u043b\u0438 Set \u0447\u0435\u0440\u0435\u0437 for&#8230;in?<\/strong><br \/>\n\u041d\u0435\u0442, \u0438\u0445 \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u044b \u043d\u0435 \u044f\u0432\u043b\u044f\u044e\u0442\u0441\u044f \u043f\u0435\u0440\u0435\u0447\u0438\u0441\u043b\u044f\u0435\u043c\u044b\u043c\u0438 \u0441\u0432\u043e\u0439\u0441\u0442\u0432\u0430\u043c\u0438: \u043e\u0448\u0438\u0431\u043a\u0438 \u043d\u0435 \u0431\u0443\u0434\u0435\u0442, \u0446\u0438\u043a\u043b \u043f\u0440\u043e\u0441\u0442\u043e \u043d\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u0441\u044f \u043d\u0438 \u0440\u0430\u0437\u0443. \u0418\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0439\u0442\u0435 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...of<\/code>: \u0434\u043b\u044f <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">Map<\/code> \u043e\u043d \u043e\u0442\u0434\u0430\u0435\u0442 \u043f\u0430\u0440\u044b <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">[\u043a\u043b\u044e\u0447, \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435]<\/code>, \u0434\u043b\u044f <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">Set<\/code> &#8212; \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f.<\/p>\n<p><strong>\u041a\u0430\u043a \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0438\u043d\u0434\u0435\u043a\u0441 \u0432 for&#8230;of?<\/strong><br \/>\n\u0427\u0435\u0440\u0435\u0437 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">arr.entries()<\/code>: <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for (const [i, value] of arr.entries())<\/code>. \u0418\u043d\u0434\u0435\u043a\u0441 \u043f\u0440\u0438 \u044d\u0442\u043e\u043c \u0431\u0443\u0434\u0435\u0442 \u0447\u0438\u0441\u043b\u043e\u043c, \u0430 \u043d\u0435 \u0441\u0442\u0440\u043e\u043a\u043e\u0439, \u043a\u0430\u043a \u0432 <code style=\"background:#eef0f3;color:#24292f;border-radius:4px;padding:1px 5px;font-size:0.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace\">for...in<\/code>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0426\u0438\u043a\u043b \u0432 JavaScript &#8212; \u044d\u0442\u043e \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u044f, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u043e\u0432\u0442\u043e\u0440\u044f\u0435\u0442 \u0431\u043b\u043e\u043a \u043a\u043e\u0434\u0430: \u043b\u0438\u0431\u043e \u043f\u043e\u043a\u0430 \u0443\u0441\u043b\u043e\u0432\u0438\u0435 \u0438\u0441\u0442\u0438\u043d\u043d\u043e (for, while, do&#8230;while), \u043b\u0438\u0431\u043e \u043f\u043e \u043e\u0434\u043d\u043e\u043c\u0443 \u0440\u0430\u0437\u0443 \u0434\u043b\u044f \u043a\u0430\u0436\u0434\u043e\u0433\u043e \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u0430 \u043a\u043e\u043b\u043b\u0435\u043a\u0446\u0438\u0438 (for&#8230;of) \u0438\u043b\u0438 \u043a\u0430\u0436\u0434\u043e\u0433\u043e \u043a\u043b\u044e\u0447\u0430 \u043e\u0431\u044a\u0435\u043a\u0442\u0430 (for&#8230;in). \u041e\u0442\u0434\u0435\u043b\u044c\u043d\u043e \u0441\u0442\u043e\u0438\u0442 \u043c\u0435\u0442\u043e\u0434 \u043c\u0430\u0441\u0441\u0438\u0432\u0430 forEach &#8212; \u044d\u0442\u043e \u043d\u0435 \u043e\u043f\u0435\u0440\u0430\u0442\u043e\u0440 \u0446\u0438\u043a\u043b\u0430, \u0430 \u0444\u0443\u043d\u043a\u0446\u0438\u044f, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u0441\u0430\u043c\u0430 \u0432\u044b\u0437\u044b\u0432\u0430\u0435\u0442 \u0432\u0430\u0448 \u043a\u043e\u043b\u0431\u044d\u043a \u0434\u043b\u044f \u043a\u0430\u0436\u0434\u043e\u0433\u043e \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u0430. \u0421\u043e\u0434\u0435\u0440\u0436\u0430\u043d\u0438\u0435 \u0422\u0440\u0438 \u0442\u0435\u0440\u043c\u0438\u043d\u0430, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":2441,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[83],"class_list":["post-2440","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-polza","tag-javascript"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412\u0441\u0435 \u0446\u0438\u043a\u043b\u044b JavaScript \u043d\u0430 \u0440\u0430\u0431\u043e\u0447\u0438\u0445 \u043f\u0440\u0438\u043c\u0435\u0440\u0430\u0445: for, while, do...while, for...of \u0438 for...in, forEach, break, continue \u0438 \u043c\u0435\u0442\u043a\u0438. \u041a\u0430\u043a\u043e\u0439 \u0446\u0438\u043a\u043b \u0432\u044b\u0431\u0440\u0430\u0442\u044c \u0438 \u0442\u0438\u043f\u0438\u0447\u043d\u044b\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 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