{"id":15152,"date":"2024-01-09T04:58:09","date_gmt":"2024-01-09T01:28:09","guid":{"rendered":"https:\/\/rasanegar.com\/blog\/%d8%b4%d9%85%d8%a7%d8%b1%d8%b4-%d8%aa%d8%b9%d8%af%d8%a7%d8%af-%d8%b1%d8%ae%d8%af%d8%a7%d8%af%d9%87%d8%a7%db%8c-%d8%b9%d9%86%d8%b5%d8%b1-%d8%af%d8%b1-%d8%a2%d8%b1%d8%a7%db%8c%d9%87-%d8%ac%d8%a7%d9%88\/"},"modified":"2024-01-09T04:58:09","modified_gmt":"2024-01-09T01:28:09","slug":"%d8%b4%d9%85%d8%a7%d8%b1%d8%b4-%d8%aa%d8%b9%d8%af%d8%a7%d8%af-%d8%b1%d8%ae%d8%af%d8%a7%d8%af%d9%87%d8%a7%db%8c-%d8%b9%d9%86%d8%b5%d8%b1-%d8%af%d8%b1-%d8%a2%d8%b1%d8%a7%db%8c%d9%87-%d8%ac%d8%a7%d9%88","status":"publish","type":"post","link":"https:\/\/rasanegaar.com\/blog\/%d8%b4%d9%85%d8%a7%d8%b1%d8%b4-%d8%aa%d8%b9%d8%af%d8%a7%d8%af-%d8%b1%d8%ae%d8%af%d8%a7%d8%af%d9%87%d8%a7%db%8c-%d8%b9%d9%86%d8%b5%d8%b1-%d8%af%d8%b1-%d8%a2%d8%b1%d8%a7%db%8c%d9%87-%d8%ac%d8%a7%d9%88\/","title":{"rendered":"\u0634\u0645\u0627\u0631\u0634 \u062a\u0639\u062f\u0627\u062f 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href=\"https:\/\/rasanegaar.com\/blog\/%d8%b4%d9%85%d8%a7%d8%b1%d8%b4-%d8%aa%d8%b9%d8%af%d8%a7%d8%af-%d8%b1%d8%ae%d8%af%d8%a7%d8%af%d9%87%d8%a7%db%8c-%d8%b9%d9%86%d8%b5%d8%b1-%d8%af%d8%b1-%d8%a2%d8%b1%d8%a7%db%8c%d9%87-%d8%ac%d8%a7%d9%88\/#%d9%85%d8%b9%d8%b1%d9%81%db%8c\" >\u0645\u0639\u0631\u0641\u06cc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%b4%d9%85%d8%a7%d8%b1%d8%b4-%d8%aa%d8%b9%d8%af%d8%a7%d8%af-%d8%b1%d8%ae%d8%af%d8%a7%d8%af%d9%87%d8%a7%db%8c-%d8%b9%d9%86%d8%b5%d8%b1-%d8%af%d8%b1-%d8%a2%d8%b1%d8%a7%db%8c%d9%87-%d8%ac%d8%a7%d9%88\/#%d8%b1%d9%88%d8%b4_%d8%b4%d9%85%d8%a7%d8%b1%d8%b4_%d9%88%d9%82%d8%a7%db%8c%d8%b9_%d8%b9%d9%86%d8%b5%d8%b1_%d8%a8%d8%a7_%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87_%d8%a7%d8%b2_%d8%ad%d9%84%d9%82%d9%87_%d9%87%d8%a7\" >\u0631\u0648\u0634 \u0634\u0645\u0627\u0631\u0634 \u0648\u0642\u0627\u06cc\u0639 \u0639\u0646\u0635\u0631 \u0628\u0627 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href=\"https:\/\/rasanegaar.com\/blog\/%d8%b4%d9%85%d8%a7%d8%b1%d8%b4-%d8%aa%d8%b9%d8%af%d8%a7%d8%af-%d8%b1%d8%ae%d8%af%d8%a7%d8%af%d9%87%d8%a7%db%8c-%d8%b9%d9%86%d8%b5%d8%b1-%d8%af%d8%b1-%d8%a2%d8%b1%d8%a7%db%8c%d9%87-%d8%ac%d8%a7%d9%88\/#%d8%ac%d8%a7%db%8c%da%af%d8%b2%db%8c%d9%86_%d8%b4%d9%85%d8%a7%d8%b1%d9%87_1_%d8%a8%d8%b1%d8%a7%db%8c_%d8%ad%d9%84%d9%82%d9%87\" >\u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0634\u0645\u0627\u0631\u0647 1: \u0628\u0631\u0627\u06cc \u062d\u0644\u0642\u0647<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%b4%d9%85%d8%a7%d8%b1%d8%b4-%d8%aa%d8%b9%d8%af%d8%a7%d8%af-%d8%b1%d8%ae%d8%af%d8%a7%d8%af%d9%87%d8%a7%db%8c-%d8%b9%d9%86%d8%b5%d8%b1-%d8%af%d8%b1-%d8%a2%d8%b1%d8%a7%db%8c%d9%87-%d8%ac%d8%a7%d9%88\/#%d8%ac%d8%a7%db%8c%da%af%d8%b2%db%8c%d9%86_%d8%b4%d9%85%d8%a7%d8%b1%d9%87_2_%d8%a8%d8%b1%d8%a7%db%8c_%d9%87%d8%b1_%d8%b1%d9%88%d8%b4\" 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href=\"https:\/\/rasanegaar.com\/blog\/%d8%b4%d9%85%d8%a7%d8%b1%d8%b4-%d8%aa%d8%b9%d8%af%d8%a7%d8%af-%d8%b1%d8%ae%d8%af%d8%a7%d8%af%d9%87%d8%a7%db%8c-%d8%b9%d9%86%d8%b5%d8%b1-%d8%af%d8%b1-%d8%a2%d8%b1%d8%a7%db%8c%d9%87-%d8%ac%d8%a7%d9%88\/#%d8%b1%d9%88%d8%b4_%d8%b4%d9%85%d8%a7%d8%b1%d8%b4_%d8%a7%d8%aa%d9%81%d8%a7%d9%82%d8%a7%d8%aa_%d8%b9%d9%86%d8%a7%d8%b5%d8%b1_%d8%a8%d8%a7_%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87_%d8%a7%d8%b2_%da%a9%d8%a7%d9%87%d8%b4_%d8%af%d8%a7%d8%af%d9%86\" >\u0631\u0648\u0634 \u0634\u0645\u0627\u0631\u0634 \u0627\u062a\u0641\u0627\u0642\u0627\u062a \u0639\u0646\u0627\u0635\u0631 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u06a9\u0627\u0647\u0634 \u062f\u0627\u062f\u0646()<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%b4%d9%85%d8%a7%d8%b1%d8%b4-%d8%aa%d8%b9%d8%af%d8%a7%d8%af-%d8%b1%d8%ae%d8%af%d8%a7%d8%af%d9%87%d8%a7%db%8c-%d8%b9%d9%86%d8%b5%d8%b1-%d8%af%d8%b1-%d8%a2%d8%b1%d8%a7%db%8c%d9%87-%d8%ac%d8%a7%d9%88\/#%d8%b1%d9%88%d8%b4_%d8%b4%d9%85%d8%a7%d8%b1%d8%b4_%d8%b1%d8%ae%d8%af%d8%a7%d8%af%d9%87%d8%a7%db%8c_%d8%b9%d9%86%d8%b5%d8%b1_%d8%a8%d8%a7_%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87_%d8%a7%d8%b2_%d9%81%db%8c%d9%84%d8%aa%d8%b1_%d8%b1%d9%88%d8%b4\" >\u0631\u0648\u0634 \u0634\u0645\u0627\u0631\u0634 \u0631\u062e\u062f\u0627\u062f\u0647\u0627\u06cc \u0639\u0646\u0635\u0631 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0641\u06cc\u0644\u062a\u0631() \u0631\u0648\u0634<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%b4%d9%85%d8%a7%d8%b1%d8%b4-%d8%aa%d8%b9%d8%af%d8%a7%d8%af-%d8%b1%d8%ae%d8%af%d8%a7%d8%af%d9%87%d8%a7%db%8c-%d8%b9%d9%86%d8%b5%d8%b1-%d8%af%d8%b1-%d8%a2%d8%b1%d8%a7%db%8c%d9%87-%d8%ac%d8%a7%d9%88\/#%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87_%da%a9%d8%b1%d8%af%d9%86_%d9%84%d9%88%d8%af%d8%a7%d8%b4_%d8%a8%d8%b1%d8%a7%db%8c_%d8%b4%d9%85%d8%a7%d8%b1%d8%b4_%d8%b1%d8%ae%d8%af%d8%a7%d8%af%d9%87%d8%a7%db%8c_%d8%b9%d9%86%d8%b5%d8%b1\" >\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f\u0646 \u0644\u0648\u062f\u0627\u0634 \u0628\u0631\u0627\u06cc \u0634\u0645\u0627\u0631\u0634 \u0631\u062e\u062f\u0627\u062f\u0647\u0627\u06cc \u0639\u0646\u0635\u0631<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%b4%d9%85%d8%a7%d8%b1%d8%b4-%d8%aa%d8%b9%d8%af%d8%a7%d8%af-%d8%b1%d8%ae%d8%af%d8%a7%d8%af%d9%87%d8%a7%db%8c-%d8%b9%d9%86%d8%b5%d8%b1-%d8%af%d8%b1-%d8%a2%d8%b1%d8%a7%db%8c%d9%87-%d8%ac%d8%a7%d9%88\/#%d9%86%d8%aa%db%8c%d8%ac%d9%87\" >\u0646\u062a\u06cc\u062c\u0647<\/a><\/li><\/ul><\/nav><\/div>\n<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">\u0632\u0645\u0627\u0646 \u0644\u0627\u0632\u0645 \u0628\u0631\u0627\u06cc \u0645\u0637\u0627\u0644\u0639\u0647: <\/span> <span class=\"rt-time\"> 6<\/span> <span class=\"rt-label rt-postfix\">\u062f\u0642\u06cc\u0642\u0647<\/span><\/span><p> <br \/>\n<\/p>\n<div class=\"content\"><noscript><\/p>\n<style>.lazyload-placeholder { display: none;  }<\/style>\n<p><\/noscript><\/p>\n<h2 id=\"introduction\"><span class=\"ez-toc-section\" id=\"%d9%85%d8%b9%d8%b1%d9%81%db%8c\"><\/span>\u0645\u0639\u0631\u0641\u06cc<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0647\u0646\u06af\u0627\u0645 \u06a9\u0627\u0631 \u0628\u0627 \u0622\u0631\u0627\u06cc\u0647\u200c\u0647\u0627 \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a\u060c \u0627\u063a\u0644\u0628 \u0628\u0627 \u0645\u0648\u0642\u0639\u06cc\u062a\u200c\u0647\u0627\u06cc\u06cc \u0645\u0648\u0627\u062c\u0647 \u0645\u06cc\u200c\u0634\u0648\u06cc\u0645 \u06a9\u0647 \u0627\u0632 \u0645\u0627 \u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u0646\u062f \u062a\u0639\u062f\u0627\u062f \u0631\u062e\u062f\u0627\u062f\u0647\u0627\u06cc \u06cc\u06a9 \u0639\u0646\u0635\u0631 \u062e\u0627\u0635 \u062f\u0631 \u0622\u0646 \u0622\u0631\u0627\u06cc\u0647 \u0631\u0627 \u0628\u0634\u0645\u0627\u0631\u06cc\u0645 &#8211; \u0627\u06cc\u0646 \u0639\u0646\u0635\u0631 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u06cc\u06a9 \u0631\u0634\u062a\u0647\u060c \u0634\u06cc\u060c \u0639\u062f\u062f \u06cc\u0627 \u062d\u062a\u06cc \u06cc\u06a9 \u0628\u0648\u0644\u06cc \u0628\u0627\u0634\u062f.<\/p>\n<blockquote>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647\u060c \u0686\u0646\u062f\u06cc\u0646 \u0631\u0648\u0634 \u0628\u0631\u0627\u06cc \u0634\u0645\u0627\u0631\u0634 \u062a\u0639\u062f\u0627\u062f \u062f\u0641\u0639\u0627\u062a \u06cc\u06a9 \u0639\u0646\u0635\u0631 \u06cc\u0627 \u0647\u0645\u0647 \u0639\u0646\u0627\u0635\u0631 \u062f\u0631 \u06cc\u06a9 \u0622\u0631\u0627\u06cc\u0647 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u062e\u0648\u0627\u0647\u06cc\u0645 \u06a9\u0631\u062f.  \u0645\u0627 \u0647\u0645\u0686\u0646\u06cc\u0646 \u0646\u06af\u0627\u0647\u06cc \u0628\u0647 \u0631\u0648\u0634 \u0634\u0645\u0627\u0631\u0634 \u062a\u0639\u062f\u0627\u062f \u0648\u0642\u0648\u0639 \u0639\u0646\u0627\u0635\u0631 \u062f\u0631 \u0622\u0631\u0627\u06cc\u0647 \u0627\u06cc \u0627\u0632 \u0622\u0631\u0627\u06cc\u0647 \u0647\u0627 \u0628\u0627 \u0645\u0633\u0637\u062d \u06a9\u0631\u062f\u0646 \u0622\u0631\u0627\u06cc\u0647 \u062e\u0648\u0627\u0647\u06cc\u0645 \u062f\u0627\u0634\u062a.<\/p>\n<\/blockquote>\n<h2 id=\"howtocountelementoccurrencesusingloops\"><span class=\"ez-toc-section\" id=\"%d8%b1%d9%88%d8%b4_%d8%b4%d9%85%d8%a7%d8%b1%d8%b4_%d9%88%d9%82%d8%a7%db%8c%d8%b9_%d8%b9%d9%86%d8%b5%d8%b1_%d8%a8%d8%a7_%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87_%d8%a7%d8%b2_%d8%ad%d9%84%d9%82%d9%87_%d9%87%d8%a7\"><\/span>\u0631\u0648\u0634 \u0634\u0645\u0627\u0631\u0634 \u0648\u0642\u0627\u06cc\u0639 \u0639\u0646\u0635\u0631 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062d\u0644\u0642\u0647 \u0647\u0627<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0627\u06cc\u0646 <code>for<\/code> \u062d\u0644\u0642\u0647 \u06cc\u06a9\u06cc \u0627\u0632 \u0631\u0648\u0634 \u0647\u0627\u06cc \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f \u0628\u0631\u0627\u06cc \u062d\u0644\u0642\u0647 \u0632\u062f\u0646 \u0627\u0632 \u0637\u0631\u06cc\u0642 \u06cc\u06a9 \u0622\u0631\u0627\u06cc\u0647 \u0627\u0633\u062a.  \u0627\u06cc\u0646 \u0628\u0647 \u0645\u0627 \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc \u062f\u0647\u062f \u062a\u0627 \u0631\u0648\u06cc \u0647\u0631 \u0639\u0646\u0635\u0631 \u06cc\u06a9 \u0622\u0631\u0627\u06cc\u0647 \u062d\u0644\u0642\u0647 \u0628\u0632\u0646\u06cc\u0645 \u0648 \u0622\u0646 \u0631\u0627 \u0628\u0627 \u0639\u0646\u0635\u0631\u06cc \u06a9\u0647 \u0628\u0647 \u062f\u0646\u0628\u0627\u0644 \u0622\u0646 \u0647\u0633\u062a\u06cc\u0645 \u0645\u0642\u0627\u06cc\u0633\u0647 \u06a9\u0646\u06cc\u0645.  \u0628\u0647 \u0627\u06cc\u0646 \u062a\u0631\u062a\u06cc\u0628\u060c \u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u062a\u0639\u062f\u0627\u062f \u0648\u0642\u0648\u0639 \u0622\u0646 \u0639\u0646\u0635\u0631 \u0631\u0627 \u062f\u0631 \u06cc\u06a9 \u0622\u0631\u0627\u06cc\u0647 \u0628\u0634\u0645\u0627\u0631\u06cc\u0645.  \u0647\u0645\u0686\u0646\u06cc\u0646 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u0645 \u0627\u0632 \u0622\u0646 \u0628\u0631\u0627\u06cc \u0634\u0645\u0627\u0631\u0634 \u062a\u0639\u062f\u0627\u062f \u0631\u062e\u062f\u0627\u062f\u0647\u0627\u06cc \u0647\u0645\u0647 \u0639\u0646\u0627\u0635\u0631 \u062f\u0631 \u0622\u0631\u0627\u06cc\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645\u060c \u0627\u0645\u0627 \u062f\u0631 \u0627\u062f\u0627\u0645\u0647 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0648\u0631\u062f \u062e\u0648\u0627\u0647\u06cc\u0645 \u067e\u0631\u062f\u0627\u062e\u062a.  \u062f\u0631 \u062d\u0627\u0644 \u062d\u0627\u0636\u0631\u060c \u0641\u0631\u0636 \u0645\u06cc \u06a9\u0646\u06cc\u0645 \u06a9\u0647 \u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u0645 \u062a\u0639\u062f\u0627\u062f \u0648\u0642\u0648\u0639 \u06cc\u06a9 \u0639\u0646\u0635\u0631 \u062e\u0627\u0635 \u0631\u0627 \u067e\u06cc\u062f\u0627 \u06a9\u0646\u06cc\u0645.<\/p>\n<h3 id=\"thebestsolutionforofloop\"><span class=\"ez-toc-section\" id=\"%d8%a8%d9%87%d8%aa%d8%b1%db%8c%d9%86_%d8%b1%d8%a7%d9%87_%d8%ad%d9%84_%d8%a8%d8%b1%d8%a7%db%8c-%d8%a7%d8%b2_%d8%ad%d9%84%d9%82%d9%87\"><\/span>\u0628\u0647\u062a\u0631\u06cc\u0646 \u0631\u0627\u0647 \u062d\u0644: <em>\u0628\u0631\u0627\u06cc-\u0627\u0632<\/em> \u062d\u0644\u0642\u0647<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0628\u062f\u06cc\u0647\u06cc \u0627\u0633\u062a \u060c JavaScript \u062f\u0627\u0631\u0627\u06cc \u062f\u0627\u062e\u0644\u06cc \u0627\u0633\u062a <code>for<\/code> \u062d\u0644\u0642\u0647 \u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645\u060c \u0627\u0645\u0627\u060c \u0628\u0631\u0627\u06cc \u0622\u0633\u0627\u0646 \u062a\u0631 \u06a9\u0631\u062f\u0646 \u06a9\u0627\u0631\u0647\u0627\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0627\u0632 \u0627\u0635\u0644\u0627\u062d \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645 &#8211; the <code>for-of<\/code> \u062d\u0644\u0642\u0647  \u0628\u0647 \u0627\u06cc\u0646 \u062a\u0631\u062a\u06cc\u0628\u060c \u0628\u0647 \u062c\u0627\u06cc \u062f\u0633\u062a\u0631\u0633\u06cc \u0628\u0647 \u0647\u0631 \u0639\u0646\u0635\u0631 \u062a\u0648\u0633\u0637 \u0634\u0627\u062e\u0635 \u0622\u0646 \u062f\u0631 \u0622\u0631\u0627\u06cc\u0647\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0628\u0647 \u0645\u0642\u062f\u0627\u0631 \u062e\u0648\u062f \u0639\u0646\u0635\u0631 \u062f\u0633\u062a\u0631\u0633\u06cc \u067e\u06cc\u062f\u0627 \u06a9\u0646\u06cc\u0645.<\/p>\n<div class=\"alert alert-note\">\n<div class=\"flex\">\n<div class=\"flex-shrink-0 mr-3\"><\/div>\n<div class=\"w-full\">\n<p><strong>\u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f:<\/strong> JavaScript ES2015 \u0645\u0639\u0631\u0641\u06cc \u06a9\u0631\u062f <code>for-of<\/code> \u062d\u0644\u0642\u0647  \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646\u06cc \u0628\u0631\u0627\u06cc <code>array.forEach()<\/code> \u0631\u0648\u0634\u06cc \u06a9\u0647 \u0642\u0628\u0644\u0627\u064b \u0628\u0631\u0627\u06cc \u062a\u06a9\u0631\u0627\u0631 \u0631\u0648\u06cc \u0647\u0631 \u0639\u0646\u0635\u0631 \u0622\u0631\u0627\u06cc\u0647 \u0648 \u0627\u0639\u0645\u0627\u0644 \u0628\u0631\u062e\u06cc \u062a\u063a\u06cc\u06cc\u0631\u0627\u062a \u062f\u0631 \u0647\u0631 \u06cc\u06a9 \u0627\u0632 \u0622\u0646\u0647\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u062f.  \u062a\u0641\u0627\u0648\u062a \u0627\u0635\u0644\u06cc \u0628\u06cc\u0646 <code>for-of<\/code> \u0648 <code>forEach()<\/code> \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u0627\u0648\u0644\u06cc\u0646 \u0645\u0648\u0631\u062f \u0628\u0627 \u0622\u0646 \u0633\u0627\u0632\u06af\u0627\u0631 \u0627\u0633\u062a <code>async<\/code> \u06a9\u0627\u0631\u06a9\u0631\u062f.  \u062f\u0631 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647\u060c \u0645\u0627 \u062a\u0631\u062c\u06cc\u062d \u062f\u0627\u062f\u0647\u200c\u0627\u06cc\u0645 \u06a9\u0647 \u062f\u0631 \u062f\u0631\u062c\u0647 \u0627\u0648\u0644 \u0627\u0632 \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645 <code>for-of<\/code> \u062d\u0644\u0642\u0647 \u0628\u0647 \u062c\u0627\u06cc <code>forEach()<\/code> \u0627\u06cc\u0646 \u0631\u0648\u0634 \u0641\u0642\u0637 \u0628\u0631\u0627\u06cc \u0627\u06cc\u0645\u0646 \u0628\u0648\u062f\u0646 \u062f\u0631 \u06cc\u06a9 \u0633\u0646\u0627\u0631\u06cc\u0648\u06cc \u0646\u0627\u0647\u0645\u0632\u0645\u0627\u0646 \u0627\u0633\u062a\u060c \u0627\u0645\u0627 \u0627\u06af\u0631 \u0628\u0627 \u0622\u0646 \u0627\u0630\u06cc\u062a \u0646\u0645\u06cc\u200c\u0634\u0648\u06cc\u062f\u060c \u0631\u0627\u062d\u062a \u0627\u0632 \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f <code>forEach()<\/code> \u0628\u062c\u0627\u06cc!<\/p>\n<\/p><\/div><\/div><\/div>\n<p>\u0627\u0648\u0644 \u0627\u0632 \u0647\u0645\u0647\u060c \u0628\u06cc\u0627\u06cc\u06cc\u062f \u0646\u06af\u0627\u0647\u06cc \u0628\u0647 \u0686\u0646\u062f \u0628\u0627\u0631 \u0628\u06cc\u0627\u0646\u062f\u0627\u0632\u06cc\u0645 <em>\u06cc\u06a9 \u0639\u0646\u0635\u0631 \u062e\u0627\u0635 \u0631\u062e \u0645\u06cc \u062f\u0647\u062f<\/em> \u062f\u0631 \u06cc\u06a9 \u0622\u0631\u0627\u06cc\u0647  \u0628\u0631\u0627\u06cc \u0627\u0646\u062c\u0627\u0645 \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u060c \u0645\u0627 \u0628\u0627\u06cc\u062f \u062a\u0646\u0638\u06cc\u0645 \u06a9\u0646\u06cc\u0645 <code>counter<\/code> \u0645\u062a\u063a\u06cc\u0631 \u0628\u0647 <code>0<\/code>\u060c \u0633\u067e\u0633 \u0627\u0632 \u0637\u0631\u06cc\u0642 \u0622\u0631\u0627\u06cc\u0647 \u062d\u0644\u0642\u0647 \u06a9\u0646\u06cc\u062f \u0648 \u0622\u0646 \u0631\u0627 \u0627\u0641\u0632\u0627\u06cc\u0634 \u062f\u0647\u06cc\u062f <code>counter<\/code> \u0647\u0631 \u0628\u0627\u0631 \u06a9\u0647 \u0639\u0646\u0635\u0631 \u0645\u0648\u0631\u062f \u0646\u0638\u0631 \u062e\u0648\u062f \u0631\u0627 \u067e\u06cc\u062f\u0627 \u0645\u06cc \u06a9\u0646\u06cc\u0645 \u062a\u0648\u0633\u0637 \u06cc\u06a9\u06cc.  \u0648\u0642\u062a\u06cc \u062f\u0631 \u06a9\u0644 \u0622\u0631\u0627\u06cc\u0647 \u062d\u0644\u0642\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u0645 \u060c <code>counter<\/code> \u062a\u0639\u062f\u0627\u062f \u062f\u0641\u0639\u0627\u062a \u0639\u0646\u0635\u0631 \u0645\u0648\u0631\u062f \u062c\u0633\u062a\u062c\u0648 \u0631\u0627 \u0630\u062e\u06cc\u0631\u0647 \u0645\u06cc \u06a9\u0646\u062f:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">const<\/span> allStudentsAge = (<span class=\"hljs-number\">19<\/span>, <span class=\"hljs-number\">22<\/span>, <span class=\"hljs-number\">18<\/span>, <span class=\"hljs-number\">19<\/span>, <span class=\"hljs-number\">16<\/span>, <span class=\"hljs-number\">18<\/span>, <span class=\"hljs-number\">19<\/span>, <span class=\"hljs-number\">21<\/span>, <span class=\"hljs-number\">24<\/span>);\n<span class=\"hljs-keyword\">let<\/span> target = <span class=\"hljs-number\">19<\/span>;\n\n<span class=\"hljs-keyword\">let<\/span> counter = <span class=\"hljs-number\">0<\/span>;\n<span class=\"hljs-keyword\">for<\/span> (studentAge <span class=\"hljs-keyword\">of<\/span> allStudentsAge) {\n  <span class=\"hljs-keyword\">if<\/span> (studentAge == target) {\n        counter++;\n    }\n};\n\n<span class=\"hljs-built_in\">console<\/span>.log(counter); <span class=\"hljs-comment\">\/\/ 3<\/span>\n<\/code><\/pre>\n<p>\u0634\u0631\u0627\u06cc\u0637\u06cc \u06a9\u0647 \u0645\u0627 \u062f\u0627\u0631\u06cc\u0645 <em>\u0622\u0631\u0627\u06cc\u0647 \u0627\u06cc \u0627\u0632 \u0622\u0631\u0627\u06cc\u0647 \u0647\u0627<\/em> \u06a9\u0645\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647 \u062a\u0631 \u0627\u0633\u062a  \u062f\u0631 \u0622\u0646 \u0635\u0648\u0631\u062a\u060c \u0627\u0628\u062a\u062f\u0627 \u0628\u0627\u06cc\u062f \u0622\u0631\u0627\u06cc\u0647 \u0631\u0627 \u0645\u0633\u0637\u062d \u06a9\u0646\u06cc\u0645 \u062a\u0627 \u062a\u0645\u0627\u0645 \u0639\u0646\u0627\u0635\u0631 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0631\u0627\u06cc\u0647 \u062f\u0631 \u06cc\u06a9 \u0622\u0631\u0627\u06cc\u0647 \u0642\u0631\u0627\u0631 \u06af\u06cc\u0631\u0646\u062f <code>flat()<\/code> \u0631\u0648\u0634:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">const<\/span> allStudentsAge = (\n    (<span class=\"hljs-number\">1<\/span>, <span class=\"hljs-number\">19<\/span>),\n    (<span class=\"hljs-number\">3<\/span>, <span class=\"hljs-number\">4<\/span>),\n    (<span class=\"hljs-number\">5<\/span>, <span class=\"hljs-number\">19<\/span>),\n    (<span class=\"hljs-number\">7<\/span>, <span class=\"hljs-number\">8<\/span>, <span class=\"hljs-number\">19<\/span>),\n    (<span class=\"hljs-number\">10<\/span>, <span class=\"hljs-number\">11<\/span>, <span class=\"hljs-number\">12<\/span>, <span class=\"hljs-number\">13<\/span>, <span class=\"hljs-number\">14<\/span>, <span class=\"hljs-number\">15<\/span>),\n    (<span class=\"hljs-number\">19<\/span>, <span class=\"hljs-number\">22<\/span>, <span class=\"hljs-number\">18<\/span>, <span class=\"hljs-number\">19<\/span>, <span class=\"hljs-number\">16<\/span>, <span class=\"hljs-number\">18<\/span>, <span class=\"hljs-number\">19<\/span>, <span class=\"hljs-number\">21<\/span>, <span class=\"hljs-number\">24<\/span>)\n);\n\n<span class=\"hljs-keyword\">let<\/span> target = <span class=\"hljs-number\">19<\/span>;\n\n<span class=\"hljs-keyword\">let<\/span> counter = <span class=\"hljs-number\">0<\/span>;\n<span class=\"hljs-keyword\">for<\/span> (studentAge <span class=\"hljs-keyword\">of<\/span> allStudentsAge.flat()) {\n  <span class=\"hljs-keyword\">if<\/span> (studentAge == target) {\n        counter++;\n    }\n};\n\n<span class=\"hljs-built_in\">console<\/span>.log(counter); <span class=\"hljs-comment\">\/\/ 6<\/span>\n<\/code><\/pre>\n<p>\u0627\u06cc\u0646 \u0647\u0645\u0686\u0646\u06cc\u0646 \u0628\u0631\u0627\u06cc \u0622\u0631\u0627\u06cc\u0647 \u0647\u0627 \u06a9\u0627\u0631 \u0645\u06cc \u06a9\u0646\u062f <em>\u0639\u0646\u0627\u0635\u0631 \u0627\u0646\u0648\u0627\u0639 \u0645\u062e\u062a\u0644\u0641 \u062f\u0627\u062f\u0647<\/em>.  \u0628\u06cc\u0627\u06cc\u06cc\u062f \u06cc\u06a9 \u0622\u0631\u0627\u06cc\u0647 \u0646\u0645\u0648\u0646\u0647 \u0628\u0627 \u0627\u0646\u0648\u0627\u0639 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u0645 \u0648 \u0628\u0631\u0631\u0633\u06cc \u06a9\u0646\u06cc\u0645 \u06a9\u0647 \u0622\u06cc\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u062a\u0639\u062f\u0627\u062f \u0648\u0642\u0648\u0639 \u06cc\u06a9 \u0639\u0646\u0635\u0631 \u062e\u0627\u0635 \u0631\u0627 \u0628\u0634\u0645\u0627\u0631\u06cc\u0645 \u06cc\u0627 \u062e\u06cc\u0631:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">const<\/span> myArray = (<span class=\"hljs-literal\">false<\/span>, <span class=\"hljs-number\">24<\/span>, <span class=\"hljs-string\">\"English\"<\/span>, <span class=\"hljs-literal\">false<\/span>, <span class=\"hljs-string\">\"english\"<\/span>, <span class=\"hljs-number\">22<\/span>, <span class=\"hljs-number\">19<\/span>, <span class=\"hljs-literal\">false<\/span>, <span class=\"hljs-string\">\"English\"<\/span>, <span class=\"hljs-number\">19<\/span>);\n<\/code><\/pre>\n<p>\u0627\u06a9\u0646\u0648\u0646 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u0645 \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u0642\u0627\u0628\u0644 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u062c\u062f\u062f \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u0645 \u06a9\u0647 \u062a\u0639\u062f\u0627\u062f \u0631\u062e\u062f\u0627\u062f\u0647\u0627\u06cc \u0639\u0646\u0635\u0631 \u062f\u0627\u062f\u0647 \u0634\u062f\u0647 \u062f\u0631 \u0622\u0631\u0627\u06cc\u0647 \u062f\u0627\u062f\u0647 \u0634\u062f\u0647 \u0631\u0627 \u0645\u06cc\u200c\u0634\u0645\u0627\u0631\u062f:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">const<\/span> checkOccurrence = <span class=\"hljs-function\">(<span class=\"hljs-params\">array, element<\/span>) =&gt;<\/span> {\n    <span class=\"hljs-keyword\">let<\/span> counter = <span class=\"hljs-number\">0<\/span>;\n    <span class=\"hljs-keyword\">for<\/span> (item <span class=\"hljs-keyword\">of<\/span> array.flat()) {\n        <span class=\"hljs-keyword\">if<\/span> (item == element) {\n            counter++;\n        }\n    };\n    <span class=\"hljs-built_in\">console<\/span>.log(counter);\n};\n<\/code><\/pre>\n<p>\u0628\u06cc\u0627\u06cc\u06cc\u062f \u0628\u0631\u0631\u0633\u06cc \u06a9\u0646\u06cc\u0645 \u06a9\u0647 \u0622\u06cc\u0627 \u062a\u0627\u0628\u0639\u06cc \u06a9\u0647 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0631\u062f\u0647 \u0627\u06cc\u0645 \u0648\u0627\u0642\u0639\u0627\u064b \u06a9\u0627\u0631 \u0645\u06cc \u06a9\u0646\u062f \u06cc\u0627 \u062e\u06cc\u0631:<\/p>\n<pre><code class=\"hljs\">checkOccurrence(myArray, <span class=\"hljs-literal\">false<\/span>); <span class=\"hljs-comment\">\/\/ 3<\/span>\ncheckOccurrence(myArray, <span class=\"hljs-number\">19<\/span>); <span class=\"hljs-comment\">\/\/ 2<\/span>\ncheckOccurrence(myArray, <span class=\"hljs-string\">\"english\"<\/span>); <span class=\"hljs-comment\">\/\/ 1<\/span>\n<\/code><\/pre>\n<p>\u0645\u0627 \u062a\u0623\u06cc\u06cc\u062f \u06a9\u0631\u062f\u06cc\u0645 \u06a9\u0647 \u0633\u0647 \u0646\u0645\u0648\u0646\u0647 \u0627\u0632 \u0639\u0646\u0635\u0631 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f <code>false<\/code> \u0648 \u062f\u0648 \u0645\u0648\u0631\u062f \u0627\u0632 \u0639\u0646\u0635\u0631 <code>19<\/code>\u060c \u06a9\u0647 \u062f\u0631\u0633\u062a \u0627\u0633\u062a\u060c \u0627\u0645\u0627 \u0686\u0631\u0627 \u0641\u0642\u0637 \u06cc\u06a9 \u0639\u0646\u0635\u0631 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f <code>\"english\"<\/code> \u0628\u0647 \u062c\u0627\u06cc \u0633\u0647\u061f  \u0627\u06cc\u0646 \u0646\u0627\u0634\u06cc \u0627\u0632 <em>\u062d\u0633\u0627\u0633\u06cc\u062a \u0628\u0647 \u062d\u0631\u0648\u0641 \u06a9\u0648\u0686\u06a9 \u0648 \u0628\u0632\u0631\u06af<\/em> \u0627\u0632 \u062a\u0627\u0628\u0639\u06cc \u06a9\u0647 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0631\u062f\u0647\u200c\u0627\u06cc\u0645 &#8211; \u0628\u0647\u062a\u0631\u06cc\u0646 \u0631\u0627\u0647 \u0628\u0631\u0627\u06cc \u062d\u0644 \u0627\u06cc\u0646 \u0645\u0648\u0636\u0648\u0639 \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u062a\u0645\u0627\u0645 \u0639\u0646\u0627\u0635\u0631 \u0631\u0634\u062a\u0647 \u0631\u0627 \u0642\u0628\u0644 \u0627\u0632 \u0634\u0645\u0627\u0631\u0634 \u0628\u0647 \u062d\u0631\u0648\u0641 \u0628\u0632\u0631\u06af (\u06cc\u0627 \u06a9\u0648\u0686\u06a9) \u062a\u0628\u062f\u06cc\u0644 \u06a9\u0646\u06cc\u0645:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">const<\/span> checkOccurrence = <span class=\"hljs-function\">(<span class=\"hljs-params\">array, element<\/span>) =&gt;<\/span> {\n    <span class=\"hljs-keyword\">let<\/span> counter = <span class=\"hljs-number\">0<\/span>;\n    <span class=\"hljs-keyword\">for<\/span> (item <span class=\"hljs-keyword\">of<\/span> array.flat()) {\n        <span class=\"hljs-keyword\">if<\/span> (<span class=\"hljs-keyword\">typeof<\/span> item === <span class=\"hljs-string\">\"string\"<\/span>) {\n            <span class=\"hljs-keyword\">let<\/span> newItem = item.toLowerCase();\n            <span class=\"hljs-keyword\">if<\/span> (newItem == element) {\n                counter++;\n            }\n        } <span class=\"hljs-keyword\">else<\/span> {\n            <span class=\"hljs-keyword\">if<\/span> (item == element) {\n                counter++;\n            }\n        }\n    };\n    <span class=\"hljs-built_in\">console<\/span>.log(counter);\n};\n<\/code><\/pre>\n<p>\u0648\u0642\u062a\u06cc \u0627\u06a9\u0646\u0648\u0646 \u0648\u0642\u0627\u06cc\u0639 \u0639\u0646\u0635\u0631 \u0631\u0627 \u062d\u0633\u0627\u0628 \u0645\u06cc \u06a9\u0646\u06cc\u0645 <code>\"english\"<\/code>\u060c <code>checkOccurrence()<\/code> \u062a\u0627\u0628\u0639 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u062f <code>3<\/code> \u0632\u06cc\u0631\u0627 \u062f\u06cc\u06af\u0631 \u062d\u0633\u0627\u0633 \u0628\u0647 \u0645\u0648\u0631\u062f \u0646\u06cc\u0633\u062a:<\/p>\n<pre><code class=\"hljs\">checkOccurrence(myArray, <span class=\"hljs-string\">\"english\"<\/span>); <span class=\"hljs-comment\">\/\/ 3<\/span>\n<\/code><\/pre>\n<h3 id=\"alternative1forloop\"><span class=\"ez-toc-section\" id=\"%d8%ac%d8%a7%db%8c%da%af%d8%b2%db%8c%d9%86_%d8%b4%d9%85%d8%a7%d8%b1%d9%87_1_%d8%a8%d8%b1%d8%a7%db%8c_%d8%ad%d9%84%d9%82%d9%87\"><\/span>\u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0634\u0645\u0627\u0631\u0647 1: <em>\u0628\u0631\u0627\u06cc<\/em> \u062d\u0644\u0642\u0647<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0627\u06af\u0631 \u0628\u0647 \u062f\u0644\u0627\u06cc\u0644\u06cc \u0646\u06cc\u0627\u0632 \u0628\u0647 \u062f\u0633\u062a\u0631\u0633\u06cc \u0628\u0647 \u0634\u0627\u062e\u0635 \u0647\u0631 \u0639\u0646\u0635\u0631 \u062f\u0631 \u06cc\u06a9 \u0622\u0631\u0627\u06cc\u0647 \u062f\u0627\u0631\u06cc\u062f\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0632 Basic \u0646\u06cc\u0632 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f <code>for<\/code> \u062d\u0644\u0642\u0647 \u0628\u0647 \u062c\u0627\u06cc <code>for-of<\/code> :<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">const<\/span> checkOccurrence = <span class=\"hljs-function\">(<span class=\"hljs-params\">array, element<\/span>) =&gt;<\/span> {\n    <span class=\"hljs-keyword\">let<\/span> counter = <span class=\"hljs-number\">0<\/span>;\n    <span class=\"hljs-keyword\">for<\/span> (<span class=\"hljs-keyword\">let<\/span> i = <span class=\"hljs-number\">0<\/span>; i &lt;= array.length; i++) {\n        <span class=\"hljs-keyword\">if<\/span> (array(i) == element) {\n            counter++;\n        }\n    }\n    <span class=\"hljs-built_in\">console<\/span>.log(counter);\n};\n<\/code><\/pre>\n<p>\u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u0645 \u0628\u0631\u0631\u0633\u06cc \u06a9\u0646\u06cc\u0645 \u06a9\u0647 \u0627\u06cc\u0646 \u0647\u0645\u0627\u0646 \u0646\u062a\u06cc\u062c\u0647\u200c\u0627\u06cc \u0631\u0627 \u0628\u0647 \u0645\u0627 \u0645\u06cc\u200c\u062f\u0647\u062f \u06a9\u0647 \u0628\u0627 \u0647\u0645\u0627\u0646 \u062a\u0627\u0628\u0639 \u0627\u06cc\u062c\u0627\u062f \u0634\u062f\u0647 \u0627\u0633\u062a <code>for-of<\/code> \u062d\u0644\u0642\u0647:<\/p>\n<pre><code class=\"hljs\">checkOccurrence(myArray, <span class=\"hljs-literal\">false<\/span>); <span class=\"hljs-comment\">\/\/ 3<\/span>\ncheckOccurrence(myArray, <span class=\"hljs-number\">19<\/span>); <span class=\"hljs-comment\">\/\/ 2<\/span>\ncheckOccurrence(myArray, <span class=\"hljs-string\">\"english\"<\/span>); <span class=\"hljs-comment\">\/\/ 1<\/span>\n<\/code><\/pre>\n<h3 id=\"alternative2foreachmethod\"><span class=\"ez-toc-section\" id=\"%d8%ac%d8%a7%db%8c%da%af%d8%b2%db%8c%d9%86_%d8%b4%d9%85%d8%a7%d8%b1%d9%87_2_%d8%a8%d8%b1%d8%a7%db%8c_%d9%87%d8%b1_%d8%b1%d9%88%d8%b4\"><\/span>\u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0634\u0645\u0627\u0631\u0647 2: <em>\u0628\u0631\u0627\u06cc \u0647\u0631()<\/em> \u0631\u0648\u0634<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u06cc\u06a9\u06cc \u062f\u06cc\u06af\u0631 \u0627\u0632 \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0647\u0627\u06cc \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 <code>forEach()<\/code> \u0631\u0648\u0634 \u062a\u06a9\u0631\u0627\u0631 \u0631\u0648\u06cc \u062a\u0645\u0627\u0645 \u0639\u0646\u0627\u0635\u0631 \u06cc\u06a9 \u0622\u0631\u0627\u06cc\u0647:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">const<\/span> checkOccurrence = <span class=\"hljs-function\">(<span class=\"hljs-params\">array, element<\/span>) =&gt;<\/span> {\n    <span class=\"hljs-keyword\">let<\/span> counter = <span class=\"hljs-number\">0<\/span>;\n    array.forEach()<span class=\"hljs-keyword\">for<\/span> (<span class=\"hljs-keyword\">let<\/span> i = <span class=\"hljs-number\">0<\/span>; i &lt;= array.length; i++) {\n        <span class=\"hljs-keyword\">if<\/span> (array(i) == element) {\n            counter++;\n        }\n    }\n    <span class=\"hljs-built_in\">console<\/span>.log(counter);\n};\n<\/code><\/pre>\n<p>\u0627\u06cc\u0646 \u06a9\u0627\u0631 \u0647\u0645\u0627\u0646 \u0646\u062a\u06cc\u062c\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f\u0647\u0627\u06cc \u0642\u0628\u0644\u06cc \u0631\u0627 \u0628\u0631\u0627\u06cc \u0645\u0627 \u0628\u0647 \u0627\u0631\u0645\u063a\u0627\u0646 \u0645\u06cc \u0622\u0648\u0631\u062f\u060c \u0627\u0645\u0627 \u0628\u0627\u0632 \u0647\u0645\u060c \u0647\u0646\u06af\u0627\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0646 \u0645\u0631\u0627\u0642\u0628 \u0628\u0627\u0634\u06cc\u062f <code>forEach()<\/code> \u0631\u0648\u0634 \u062f\u0631 \u06cc\u06a9 \u0645\u062d\u06cc\u0637 \u0646\u0627\u0647\u0645\u0632\u0645\u0627\u0646:<\/p>\n<pre><code class=\"hljs\">checkOccurrence(myArray, <span class=\"hljs-literal\">false<\/span>); <span class=\"hljs-comment\">\/\/ 3<\/span>\ncheckOccurrence(myArray, <span class=\"hljs-number\">19<\/span>); <span class=\"hljs-comment\">\/\/ 2<\/span>\ncheckOccurrence(myArray, <span class=\"hljs-string\">\"english\"<\/span>); <span class=\"hljs-comment\">\/\/ 1<\/span>\n<\/code><\/pre>\n<h2 id=\"checkthenumberofoccurrencesofallelements\"><span class=\"ez-toc-section\" id=\"%d8%aa%d8%b9%d8%af%d8%a7%d8%af_%d9%88%d9%82%d9%88%d8%b9_%d9%87%d9%85%d9%87_%d8%b9%d9%86%d8%a7%d8%b5%d8%b1_%d8%b1%d8%a7_%d8%a8%d8%b1%d8%b1%d8%b3%db%8c_%da%a9%d9%86%db%8c%d8%af\"><\/span>\u062a\u0639\u062f\u0627\u062f \u0648\u0642\u0648\u0639 \u0647\u0645\u0647 \u0639\u0646\u0627\u0635\u0631 \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u06a9\u0646\u06cc\u062f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u062a\u0627 \u06a9\u0646\u0648\u0646\u060c \u0631\u0648\u0634 \u0634\u0645\u0627\u0631\u0634 \u0645\u0648\u0627\u0631\u062f \u0631\u0627 \u062f\u06cc\u062f\u0647 \u0627\u06cc\u0645 <em>\u06cc\u06a9 \u0639\u0646\u0635\u0631 \u062e\u0627\u0635<\/em>.  \u062d\u0627\u0644\u060c \u0628\u06cc\u0627\u06cc\u06cc\u062f \u0628\u0628\u06cc\u0646\u06cc\u0645 \u06a9\u0647 \u0686\u06af\u0648\u0646\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0645\u0648\u0627\u0631\u062f \u0631\u0627 \u0634\u0645\u0627\u0631\u0634 \u06a9\u0631\u062f <em>\u0647\u0645\u0647 \u0639\u0646\u0627\u0635\u0631<\/em> \u0648 \u0647\u0645 \u0639\u0646\u0635\u0631 \u0648 \u0647\u0645 \u062a\u0639\u062f\u0627\u062f \u0631\u062e\u062f\u0627\u062f\u0647\u0627 \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 \u0634\u06cc \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f.<\/p>\n<p>\u0628\u0631\u0627\u06cc \u0634\u0631\u0648\u0639\u060c \u06cc\u06a9 \u0634\u06cc \u062e\u0627\u0644\u06cc \u0628\u0631\u0627\u06cc \u0630\u062e\u06cc\u0631\u0647 \u0647\u0631 \u0639\u0646\u0635\u0631 \u0622\u0631\u0627\u06cc\u0647 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06a9\u0644\u06cc\u062f \u0648 \u062a\u0639\u062f\u0627\u062f \u0631\u062e\u062f\u0627\u062f\u0647\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u0642\u062f\u0627\u0631 \u0645\u06cc \u0633\u0627\u0632\u06cc\u0645.  \u0633\u067e\u0633 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0631\u0627\u06cc\u0647 \u0631\u0627 \u062d\u0644\u0642\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u0645 <code>for-of<\/code> \u062d\u0644\u0642\u0647\u060c \u0648 \u0631\u0648\u06cc \u062f\u0631 \u0647\u0631 \u062a\u06a9\u0631\u0627\u0631\u060c \u0627\u06af\u0631 \u0639\u0646\u0635\u0631 \u062e\u0627\u0635\u06cc \u0627\u0632 \u0642\u0628\u0644 \u062f\u0631 \u0634\u06cc \u0648\u062c\u0648\u062f \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f\u060c \u062a\u0639\u062f\u0627\u062f \u0622\u0646 \u0631\u0627 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0645\u06cc\u200c\u062f\u0647\u06cc\u0645 \u06cc\u0627 \u062a\u0639\u062f\u0627\u062f \u0622\u0646 \u0631\u0627 \u0631\u0648\u06cc <code>1<\/code> \u062f\u0631 \u063a\u06cc\u0631 \u0627\u06cc\u0646 \u0635\u0648\u0631\u062a:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">const<\/span> myArray = (<span class=\"hljs-literal\">false<\/span>, <span class=\"hljs-number\">24<\/span>, <span class=\"hljs-string\">\"English\"<\/span>, <span class=\"hljs-literal\">false<\/span>, <span class=\"hljs-string\">\"english\"<\/span>, <span class=\"hljs-number\">22<\/span>, <span class=\"hljs-number\">19<\/span>, <span class=\"hljs-literal\">false<\/span>, <span class=\"hljs-string\">\"English\"<\/span>, <span class=\"hljs-number\">19<\/span>);\n\n<span class=\"hljs-keyword\">let<\/span> counter = {};\n<span class=\"hljs-keyword\">for<\/span> (element <span class=\"hljs-keyword\">of<\/span> myArray.flat()) {\n    <span class=\"hljs-keyword\">if<\/span> (counter(element)) {\n        counter(element) += <span class=\"hljs-number\">1<\/span>;\n    } <span class=\"hljs-keyword\">else<\/span> {\n        counter(element) = <span class=\"hljs-number\">1<\/span>;\n    }\n};\n<span class=\"hljs-built_in\">console<\/span>.log(counter);\n<\/code><\/pre>\n<p>\u06a9\u062f \u0642\u0628\u0644\u06cc \u0634\u06cc\u0621 \u062d\u0627\u0648\u06cc \u062a\u0639\u062f\u0627\u062f \u062f\u0641\u0639\u0627\u062a \u0647\u0631 \u0639\u0646\u0635\u0631 \u0631\u0627 \u062f\u0631 \u062e\u0631\u0648\u062c\u06cc \u0645\u06cc \u062f\u0647\u062f <code>myArray<\/code>:<\/p>\n<pre><code class=\"hljs\">{\n    <span class=\"hljs-string\">\"19\"<\/span>: <span class=\"hljs-number\">2<\/span>,\n    <span class=\"hljs-string\">\"22\"<\/span>: <span class=\"hljs-number\">1<\/span>,\n    <span class=\"hljs-string\">\"24\"<\/span>: <span class=\"hljs-number\">1<\/span>,\n    <span class=\"hljs-string\">\"English\"<\/span>: <span class=\"hljs-number\">2<\/span>,\n    <span class=\"hljs-string\">\"english\"<\/span>: <span class=\"hljs-number\">1<\/span>,\n    <span class=\"hljs-string\">\"false\"<\/span>: <span class=\"hljs-number\">3<\/span>\n}\n<\/code><\/pre>\n<p>\u0641\u0631\u0636 \u06a9\u0646\u06cc\u062f \u0647\u0646\u0648\u0632 \u0647\u0645 \u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u0645 <em>\u0627\u062c\u062a\u0646\u0627\u0628 \u0627\u0632 \u062d\u0633\u0627\u0633\u06cc\u062a \u0628\u0647 \u062d\u0631\u0648\u0641 \u06a9\u0648\u0686\u06a9 \u0648 \u0628\u0632\u0631\u06af<\/em>\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u06a9\u0627\u0631\u06cc \u0634\u0628\u06cc\u0647 \u0628\u0647 \u0627\u06cc\u0646 \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u06cc\u0645:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">const<\/span> myArray = (<span class=\"hljs-literal\">false<\/span>, <span class=\"hljs-number\">24<\/span>, <span class=\"hljs-string\">\"English\"<\/span>, <span class=\"hljs-literal\">false<\/span>, <span class=\"hljs-string\">\"english\"<\/span>, <span class=\"hljs-number\">22<\/span>, <span class=\"hljs-number\">19<\/span>, <span class=\"hljs-literal\">false<\/span>, <span class=\"hljs-string\">\"English\"<\/span>, <span class=\"hljs-number\">19<\/span>);\n\n<span class=\"hljs-keyword\">let<\/span> counter = {};\n<span class=\"hljs-keyword\">for<\/span> (element <span class=\"hljs-keyword\">of<\/span> myArray.flat()) {\n    <span class=\"hljs-keyword\">if<\/span> (<span class=\"hljs-keyword\">typeof<\/span> element === <span class=\"hljs-string\">\"string\"<\/span>) {\n        <span class=\"hljs-keyword\">let<\/span> newItem = element.toLowerCase();\n        <span class=\"hljs-keyword\">if<\/span> (counter(newItem)) {\n            counter(newItem) += <span class=\"hljs-number\">1<\/span>;\n        } <span class=\"hljs-keyword\">else<\/span> {\n            counter(newItem) = <span class=\"hljs-number\">1<\/span>;\n        }\n    } <span class=\"hljs-keyword\">else<\/span> {\n        <span class=\"hljs-keyword\">if<\/span> (counter(element)) {\n            counter(element) += <span class=\"hljs-number\">1<\/span>;\n        } <span class=\"hljs-keyword\">else<\/span> {\n            counter(element) = <span class=\"hljs-number\">1<\/span>;\n        }\n    }\n});\n<span class=\"hljs-built_in\">console<\/span>.log(counter);\n<\/code><\/pre>\n<p>\u0628\u0627 \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u0634\u06cc\u0621 \u0632\u06cc\u0631 \u0631\u0627 \u062e\u0631\u0648\u062c\u06cc \u0645\u06cc \u062f\u0647\u06cc\u062f:<\/p>\n<pre><code class=\"hljs\">{\n    <span class=\"hljs-string\">\"19\"<\/span>: <span class=\"hljs-number\">2<\/span>,\n    <span class=\"hljs-string\">\"22\"<\/span>: <span class=\"hljs-number\">1<\/span>,\n    <span class=\"hljs-string\">\"24\"<\/span>: <span class=\"hljs-number\">1<\/span>,\n    <span class=\"hljs-string\">\"false\"<\/span>: <span class=\"hljs-number\">3<\/span>,\n    <span class=\"hljs-string\">\"english\"<\/span>: <span class=\"hljs-number\">3<\/span>\n}\n<\/code><\/pre>\n<h2 id=\"howtocountelementsoccurrencesusingreduce\">\u0631\u0648\u0634 \u0634\u0645\u0627\u0631\u0634 \u0627\u062a\u0641\u0627\u0642\u0627\u062a \u0639\u0646\u0627\u0635\u0631 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 <em>\u06a9\u0627\u0647\u0634 \u062f\u0627\u062f\u0646()<\/em><\/h2>\n<p><code>reduce()<\/code>  \u06cc\u06a9 \u0631\u0648\u0634 \u0642\u062f\u0631\u062a\u0645\u0646\u062f \u0627\u0633\u062a \u06a9\u0647 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0628\u0647 \u0631\u0627\u062d\u062a\u06cc \u062a\u0639\u062f\u0627\u062f \u0631\u062e\u062f\u0627\u062f\u0647\u0627\u06cc \u0647\u0631 \u0639\u0646\u0635\u0631 \u062f\u0631 \u06cc\u06a9 \u0622\u0631\u0627\u06cc\u0647 \u0631\u0627 \u0628\u0627 \u062a\u0646\u0647\u0627 \u0628\u062f\u0633\u062a \u0622\u0648\u0631\u062f <em>\u0686\u0646\u062f \u062e\u0637 \u06a9\u062f<\/em>.  \u062a\u0627\u0628\u0639 callback \u0648 \u0645\u0642\u062f\u0627\u0631 \u0627\u0648\u0644\u06cc\u0647 \u0631\u0627 \u0645\u06cc \u067e\u0630\u06cc\u0631\u062f \u06a9\u0647 \u0628\u0631\u0627\u06cc \u0645\u0627 \u06cc\u06a9 \u0634\u06cc \u062e\u0627\u0644\u06cc \u0627\u0633\u062a \u062a\u0627 \u0628\u062a\u0648\u0627\u0646\u06cc\u0645 \u0628\u0639\u062f\u0627\u064b \u0622\u0646 \u0631\u0627 \u067e\u0631 \u06a9\u0646\u06cc\u0645:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">const<\/span> myArray = (<span class=\"hljs-literal\">false<\/span>, <span class=\"hljs-number\">24<\/span>, <span class=\"hljs-string\">\"English\"<\/span>, <span class=\"hljs-literal\">false<\/span>, <span class=\"hljs-string\">\"english\"<\/span>, <span class=\"hljs-number\">22<\/span>, <span class=\"hljs-number\">19<\/span>, <span class=\"hljs-literal\">false<\/span>, <span class=\"hljs-string\">\"English\"<\/span>, <span class=\"hljs-number\">19<\/span>);\n\n<span class=\"hljs-keyword\">let<\/span> countObject = myArray.reduce(<span class=\"hljs-function\"><span class=\"hljs-keyword\">function<\/span> (<span class=\"hljs-params\">\n    count,\n    currentValue\n<\/span>) <\/span>{\n    <span class=\"hljs-keyword\">return<\/span> (\n        count(currentValue) ? ++count(currentValue) : (count(currentValue) = <span class=\"hljs-number\">1<\/span>),\n        count\n    );\n},\n{});\n\n<span class=\"hljs-built_in\">console<\/span>.log(countObject);\n<\/code><\/pre>\n<p>\u0627\u06cc\u0646 \u06cc\u06a9 \u0634\u06cc \u062d\u0627\u0648\u06cc \u0639\u0646\u0627\u0635\u0631 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06a9\u0644\u06cc\u062f \u0648 \u062a\u0639\u062f\u0627\u062f \u0631\u062e\u062f\u0627\u062f\u0647\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0631\u0627 \u062e\u0631\u0648\u062c\u06cc \u0645\u06cc \u062f\u0647\u062f:<\/p>\n<pre><code class=\"hljs\">{\n    <span class=\"hljs-string\">\"19\"<\/span>: <span class=\"hljs-number\">2<\/span>,\n    <span class=\"hljs-string\">\"22\"<\/span>: <span class=\"hljs-number\">1<\/span>,\n    <span class=\"hljs-string\">\"24\"<\/span>: <span class=\"hljs-number\">1<\/span>,\n    <span class=\"hljs-string\">\"false\"<\/span>: <span class=\"hljs-number\">3<\/span>,\n    <span class=\"hljs-string\">\"English\"<\/span>: <span class=\"hljs-number\">2<\/span>,\n    <span class=\"hljs-string\">\"english\"<\/span>: <span class=\"hljs-number\">1<\/span>\n}\n<\/code><\/pre>\n<h2 id=\"howtocountelementoccurrencesusingthefiltermethod\"><span class=\"ez-toc-section\" id=\"%d8%b1%d9%88%d8%b4_%d8%b4%d9%85%d8%a7%d8%b1%d8%b4_%d8%b1%d8%ae%d8%af%d8%a7%d8%af%d9%87%d8%a7%db%8c_%d8%b9%d9%86%d8%b5%d8%b1_%d8%a8%d8%a7_%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87_%d8%a7%d8%b2_%d9%81%db%8c%d9%84%d8%aa%d8%b1_%d8%b1%d9%88%d8%b4\"><\/span>\u0631\u0648\u0634 \u0634\u0645\u0627\u0631\u0634 \u0631\u062e\u062f\u0627\u062f\u0647\u0627\u06cc \u0639\u0646\u0635\u0631 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 <em>\u0641\u06cc\u0644\u062a\u0631<\/em>() \u0631\u0648\u0634<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u062f\u0631 \u0642\u0633\u0645\u062a \u0642\u0628\u0644 \u0631\u0648\u0634 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062d\u0644\u0642\u0647 \u0647\u0627 \u0648 <code>reduce()<\/code> \u0631\u0648\u0634\u06cc \u0628\u0631\u0627\u06cc \u0645\u0648\u0642\u0639\u06cc\u062a \u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u06a9\u0647 \u062f\u0631 \u0622\u0646 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0628\u062e\u0648\u0627\u0647\u06cc\u0645 \u062a\u0639\u062f\u0627\u062f \u0631\u062e\u062f\u0627\u062f \u0639\u0646\u0627\u0635\u0631 \u062f\u0631 \u06cc\u06a9 \u0622\u0631\u0627\u06cc\u0647 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0631\u0627 \u0628\u0634\u0645\u0627\u0631\u06cc\u0645.  \u062c\u062f\u0627\u06cc \u0627\u0632 \u062d\u0644\u0642\u0647 \u0647\u0627 \u0648 <code>reduce()<\/code>\u060c \u0647\u0645\u0686\u0646\u06cc\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0627\u0632 \u0631\u0648\u0634 \u0647\u0627\u06cc \u062f\u06cc\u06af\u0631\u06cc \u0645\u0627\u0646\u0646\u062f <code>filter()<\/code>\u060c \u0628\u0631\u0627\u06cc \u062a\u0639\u06cc\u06cc\u0646 \u062a\u0639\u062f\u0627\u062f \u0648\u0642\u0648\u0639 \u06cc\u06a9 \u0639\u0646\u0635\u0631 \u062e\u0627\u0635 \u062f\u0631 \u06cc\u06a9 \u0622\u0631\u0627\u06cc\u0647.<\/p>\n<p>\u0628\u0631\u0627\u06cc \u0627\u0646\u062c\u0627\u0645 \u0627\u06cc\u0646 \u06a9\u0627\u0631\u060c \u0622\u0646 \u0631\u0627 \u0641\u06cc\u0644\u062a\u0631 \u0645\u06cc \u06a9\u0646\u06cc\u0645 \u0648 \u0633\u067e\u0633 \u06cc\u06a9 \u0622\u0631\u0627\u06cc\u0647 \u0631\u0627 \u067e\u0631 \u0645\u06cc \u06a9\u0646\u062f \u0631\u0648\u06cc \u0634\u0631\u0637\u06cc \u06a9\u0647 \u0627\u0632 \u0622\u0646 \u0637\u0648\u0644 \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0639\u0628\u0627\u0631\u062a \u0628\u062f\u0633\u062a \u0645\u06cc \u0622\u0648\u0631\u06cc\u0645 <code>length<\/code> \u0648\u06cc\u0698\u06af\u06cc:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">const<\/span> myArray = (<span class=\"hljs-literal\">false<\/span>, <span class=\"hljs-number\">24<\/span>, <span class=\"hljs-string\">\"English\"<\/span>, <span class=\"hljs-literal\">false<\/span>, <span class=\"hljs-string\">\"english\"<\/span>, <span class=\"hljs-number\">22<\/span>, <span class=\"hljs-number\">19<\/span>, <span class=\"hljs-literal\">false<\/span>, <span class=\"hljs-string\">\"English\"<\/span>, <span class=\"hljs-number\">19<\/span>);\n\n<span class=\"hljs-keyword\">const<\/span> itemCounter = <span class=\"hljs-function\">(<span class=\"hljs-params\">array, item<\/span>) =&gt;<\/span> {\n    <span class=\"hljs-keyword\">return<\/span> array.filter(<span class=\"hljs-function\">(<span class=\"hljs-params\">currentItem<\/span>) =&gt;<\/span> currentItem == item).length;\n};\n\n<span class=\"hljs-built_in\">console<\/span>.log(itemCounter(myArray, <span class=\"hljs-number\">19<\/span>)); <span class=\"hljs-comment\">\/\/ 2<\/span>\n<\/code><\/pre>\n<h2 id=\"usinglodashtocountelementoccurrences\">\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f\u0646 <em>\u0644\u0648\u062f\u0627\u0634<\/em> \u0628\u0631\u0627\u06cc \u0634\u0645\u0627\u0631\u0634 \u0631\u062e\u062f\u0627\u062f\u0647\u0627\u06cc \u0639\u0646\u0635\u0631<\/h2>\n<p>\u0627\u062d\u062a\u0645\u0627\u0644\u0627\u064b \u0628\u0647\u062a\u0631 \u0627\u0633\u062a \u0628\u0633\u062a\u0647 \u0647\u0627\u06cc \u0627\u0636\u0627\u0641\u06cc \u0631\u0627 \u0641\u0642\u0637 \u0628\u0647 \u0645\u0646\u0638\u0648\u0631 \u0634\u0645\u0627\u0631\u0634 \u0639\u0646\u0627\u0635\u0631 \u062f\u0631 \u06cc\u06a9 \u0622\u0631\u0627\u06cc\u0647 \u0646\u0635\u0628 \u0646\u06a9\u0646\u06cc\u0645\u060c \u0627\u0645\u0627 \u0627\u06af\u0631 \u0642\u0628\u0644\u0627\u064b \u0627\u0632 <em>\u0644\u0648\u062f\u0627\u0634<\/em> \u06a9\u062a\u0627\u0628\u062e\u0627\u0646\u0647 \u062f\u0631 \u067e\u0631\u0648\u0698\u0647 \u0645\u0627\u060c \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0646 \u0628\u0631\u0627\u06cc \u0634\u0645\u0627\u0631\u0634 \u0639\u0646\u0627\u0635\u0631 \u0636\u0631\u0631\u06cc \u0646\u062f\u0627\u0631\u062f.  \u0627\u06cc\u0646 <code>.countBy()<\/code> \u0645\u062a\u062f \u062f\u0631 Lodash \u06cc\u06a9 \u0622\u0631\u0627\u06cc\u0647 \u0631\u0627 \u0645\u06cc \u067e\u0630\u06cc\u0631\u062f \u0648 \u06cc\u06a9 \u0634\u06cc \u0631\u0627 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f.  \u0627\u06cc\u0646 \u0634\u06cc \u0634\u0627\u0645\u0644 \u0639\u0646\u0627\u0635\u0631 \u0648 \u062a\u0639\u062f\u0627\u062f \u0622\u0646\u0647\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u062c\u0641\u062a \u06a9\u0644\u06cc\u062f-\u0645\u0642\u062f\u0627\u0631 \u0627\u0633\u062a:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">const<\/span> myArray = (<span class=\"hljs-literal\">false<\/span>, <span class=\"hljs-number\">24<\/span>, <span class=\"hljs-string\">\"English\"<\/span>, <span class=\"hljs-literal\">false<\/span>, <span class=\"hljs-string\">\"english\"<\/span>, <span class=\"hljs-number\">22<\/span>, <span class=\"hljs-number\">19<\/span>, <span class=\"hljs-literal\">false<\/span>, <span class=\"hljs-string\">\"English\"<\/span>, <span class=\"hljs-number\">19<\/span>);\n\n<span class=\"hljs-keyword\">let<\/span> lodash = _;\n<span class=\"hljs-keyword\">let<\/span> elementOccurrences = _.countBy(myArray);\n<span class=\"hljs-built_in\">console<\/span>.log(elementOccurrences);\n<\/code><\/pre>\n<p>\u0627\u06cc\u0646 \u06cc\u06a9 \u0634\u06cc \u0628\u0647 \u0645\u0627 \u0645\u06cc \u062f\u0647\u062f:<\/p>\n<pre><code class=\"hljs\">{\n    <span class=\"hljs-string\">\"19\"<\/span>: <span class=\"hljs-number\">2<\/span>,\n    <span class=\"hljs-string\">\"22\"<\/span>: <span class=\"hljs-number\">1<\/span>,\n    <span class=\"hljs-string\">\"24\"<\/span>: <span class=\"hljs-number\">1<\/span>,\n    <span class=\"hljs-string\">\"false\"<\/span>: <span class=\"hljs-number\">3<\/span>,\n    <span class=\"hljs-string\">\"English\"<\/span>: <span class=\"hljs-number\">2<\/span>,\n    <span class=\"hljs-string\">\"english\"<\/span>: <span class=\"hljs-number\">1<\/span>\n}\n<\/code><\/pre>\n<h2 id=\"conclusion\"><span class=\"ez-toc-section\" id=\"%d9%86%d8%aa%db%8c%d8%ac%d9%87\"><\/span>\u0646\u062a\u06cc\u062c\u0647<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0627\u06af\u0631 \u0646\u06cc\u0627\u0632 \u0628\u0647 \u0634\u0645\u0627\u0631\u0634 \u062a\u0639\u062f\u0627\u062f \u0648\u0642\u0648\u0639 \u0639\u0646\u0627\u0635\u0631 \u062f\u0631 \u06cc\u06a9 \u0622\u0631\u0627\u06cc\u0647 \u062f\u0627\u0631\u06cc\u062f\u060c \u0627\u062d\u062a\u0645\u0627\u0644\u0627 \u0628\u0647\u062a\u0631\u06cc\u0646 \u06af\u0632\u06cc\u0646\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 <code>for-of<\/code> \u062d\u0644\u0642\u0647 \u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u062f\u0631 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0646\u0634\u0627\u0646 \u062f\u0627\u062f\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a.  \u0622\u0646 \u0627\u0633\u062a <code>async<\/code> \u0627\u0645\u0646 \u0627\u0633\u062a\u060c \u0627\u0645\u0627 \u0647\u0646\u0648\u0632 \u06cc\u06a9 \u0631\u0627\u0647 \u0628\u0633\u06cc\u0627\u0631 \u0633\u0627\u062f\u0647 \u0628\u0631\u0627\u06cc \u062a\u06a9\u0631\u0627\u0631 \u062f\u0631 \u06a9\u0644 \u0622\u0631\u0627\u06cc\u0647 \u0648 \u0634\u0645\u0627\u0631\u0634 \u0639\u0646\u0627\u0635\u0631 \u0645\u0648\u0631\u062f \u0646\u0638\u0631 \u0627\u0633\u062a.  \u0645\u0627 \u0647\u0645\u0686\u0646\u06cc\u0646 \u0646\u06af\u0627\u0647\u06cc \u0628\u0647 \u0633\u0627\u06cc\u0631 \u0631\u0648\u06cc\u06a9\u0631\u062f\u0647\u0627\u06cc \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 &#8211; \u0627\u0633\u0627\u0633\u06cc &#8211; \u0627\u0646\u062f\u0627\u062e\u062a\u0647\u200c\u0627\u06cc\u0645 <code>for<\/code> \u062d\u0644\u0642\u0647\u060c <code>forEach()<\/code>\u060c \u0648 <code>filter()<\/code> \u0631\u0648\u0634.<\/p>\n<p>\u0627\u06af\u0631 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u06cc\u062f \u0628\u0647 \u062a\u0639\u062f\u0627\u062f \u062f\u0641\u0639\u0627\u062a \u0647\u0631 \u0639\u0646\u0635\u0631 \u062f\u0631 \u06cc\u06a9 \u0622\u0631\u0627\u06cc\u0647 \u0646\u06af\u0627\u0647\u06cc \u0628\u06cc\u0646\u062f\u0627\u0632\u06cc\u062f\u060c \u0645\u0627 \u0647\u0645\u0686\u0646\u06cc\u0646 \u0634\u0645\u0627 \u0631\u0627 \u062a\u062d\u062a \u067e\u0648\u0634\u0634 \u0642\u0631\u0627\u0631 \u062f\u0627\u062f\u0647 \u0627\u06cc\u0645 &#8211; \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u062f\u0648\u0628\u0627\u0631\u0647 \u0627\u0632 <code>for-of<\/code> \u062d\u0644\u0642\u0647  \u0647\u0645\u0686\u0646\u06cc\u0646\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f <code>reduce()<\/code> \u0631\u0648\u0634\u060c \u06cc\u0627 <em>\u0644\u0648\u062f\u0627\u0634<\/em> \u06a9\u062a\u0627\u0628\u062e\u0627\u0646\u0647<\/p>\n<\/div>\n<p><br \/>\n<br \/>\u0645\u0646\u062a\u0634\u0631 \u0634\u062f\u0647 \u062f\u0631 1403-01-09 04:58:03<br \/>\n<\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-center kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;center&quot;,&quot;id&quot;:&quot;15152&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;0&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;0&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;\u0627\u0645\u062a\u06cc\u0627\u0632 \u0634\u0645\u0627 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0637\u0644\u0628&quot;,&quot;legend&quot;:&quot;0\\\/5 (0 \u0631\u0627\u06cc)&quot;,&quot;size&quot;:&quot;30&quot;,&quot;title&quot;:&quot;\u0634\u0645\u0627\u0631\u0634 \u062a\u0639\u062f\u0627\u062f \u0631\u062e\u062f\u0627\u062f\u0647\u0627\u06cc \u0639\u0646\u0635\u0631 \u062f\u0631 \u0622\u0631\u0627\u06cc\u0647 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0647\u0646\u06af\u0627\u0645 \u06a9\u0627\u0631 \u0628\u0627 \u0622\u0631\u0627\u06cc\u0647\u200c\u0647\u0627 \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a\u060c \u0627\u063a\u0644\u0628 \u0628\u0627 \u0645\u0648\u0642\u0639\u06cc\u062a\u200c\u0647\u0627\u06cc\u06cc \u0645\u0648\u0627\u062c\u0647 \u0645\u06cc\u200c\u0634\u0648\u06cc\u0645 \u06a9\u0647 \u0627\u0632 \u0645\u0627 \u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u0646\u062f \u062a\u0639\u062f\u0627\u062f \u0648\u0642\u0648\u0639 \u06cc\u06a9 \u0639\u0646\u0635\u0631 \u062e\u0627\u0635 \u062f\u0631 \u0622\u0646 \u0622\u0631\u0627\u06cc\u0647 \u0631\u0627 \u0628\u0634\u0645\u0627\u0631\u06cc\u0645 - \u0627\u06cc\u0646 \u0639\u0646\u0635\u0631 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u06cc\u06a9 \u0631\u0634\u062a\u0647\u060c \u0634\u06cc\u060c \u0639\u062f\u062f \u06cc\u0627 \u062d\u062a\u06cc \u06cc\u06a9 \u0628\u0648\u0644\u06cc \u0628\u0627\u0634\u062f. .  \u062f\u0631 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0628\u0647 \u0686\u0646\u062f \u0631\u0648\u0634 \u0628\u0631\u0627\u06cc \u0634\u0645\u0627\u0631\u0634 \u0645\u06cc \u067e\u0631\u062f\u0627\u0632\u06cc\u0645...&quot;,&quot;width&quot;:&quot;0&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} ({count} \u0631\u0627\u06cc)&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 0px;\">\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 24px;\">\n            <span class=\"kksr-muted\">\u0627\u0645\u062a\u06cc\u0627\u0632 \u0634\u0645\u0627 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0637\u0644\u0628<\/span>\n    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">\u0632\u0645\u0627\u0646 \u0644\u0627\u0632\u0645 \u0628\u0631\u0627\u06cc \u0645\u0637\u0627\u0644\u0639\u0647: <\/span> <span class=\"rt-time\"> 6<\/span> <span class=\"rt-label rt-postfix\">\u062f\u0642\u06cc\u0642\u0647<\/span><\/span>\u0645\u0639\u0631\u0641\u06cc \u0647\u0646\u06af\u0627\u0645 \u06a9\u0627\u0631 \u0628\u0627 \u0622\u0631\u0627\u06cc\u0647\u200c\u0647\u0627 \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a\u060c \u0627\u063a\u0644\u0628 \u0628\u0627 \u0645\u0648\u0642\u0639\u06cc\u062a\u200c\u0647\u0627\u06cc\u06cc \u0645\u0648\u0627\u062c\u0647 \u0645\u06cc\u200c\u0634\u0648\u06cc\u0645 \u06a9\u0647 \u0627\u0632 \u0645\u0627 \u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u0646\u062f \u062a\u0639\u062f\u0627\u062f \u0631\u062e\u062f\u0627\u062f\u0647\u0627\u06cc \u06cc\u06a9 \u0639\u0646\u0635\u0631 \u062e\u0627\u0635 \u062f\u0631 \u0622\u0646 \u0622\u0631\u0627\u06cc\u0647 \u0631\u0627 \u0628\u0634\u0645\u0627\u0631\u06cc\u0645 &#8211; \u0627\u06cc\u0646 \u0639\u0646\u0635\u0631 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u06cc\u06a9 \u0631\u0634\u062a\u0647\u060c \u0634\u06cc\u060c \u0639\u062f\u062f \u06cc\u0627 \u062d\u062a\u06cc \u06cc\u06a9 \u0628\u0648\u0644\u06cc \u0628\u0627\u0634\u062f. \u062f\u0631 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647\u060c \u0686\u0646\u062f\u06cc\u0646 \u0631\u0648\u0634 \u0628\u0631\u0627\u06cc \u0634\u0645\u0627\u0631\u0634 \u062a\u0639\u062f\u0627\u062f \u062f\u0641\u0639\u0627\u062a \u06cc\u06a9 \u0639\u0646\u0635\u0631 \u06cc\u0627 \u0647\u0645\u0647 \u0639\u0646\u0627\u0635\u0631 \u062f\u0631 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":9045,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1772,620],"tags":[2009,3676,2508,1252,1844,1904,1776,1781,2422,1789,1779,1794,1814,1841,3680,1807,2616,3681,3363,1780,1103,2106,1982,2465,2750,1803,3658,2285,2123,3507,2445,2395,2802,1956,1795,1969,2799,2174,3677,1790,3334,3679,3678,2322,2323,2408,1983,3662,1831,1813],"class_list":["post-15152","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-javascript","category-programming","tag-2009","tag-3676","tag--javascript","tag--nodejs","tag-1844","tag-1904","tag-1776","tag-1781","tag-2422","tag-1789","tag-1779","tag-1794","tag-1814","tag-1841","tag-3680","tag-1807","tag-2616","tag-3681","tag-3363","tag-1780","tag-1103","tag-2106","tag-1982","tag-2465","tag-2750","tag-1803","tag-3658","tag-2285","tag-2123","tag-3507","tag-2445","tag-2395","tag-2802","tag-1956","tag-1795","tag-1969","tag-2799","tag-2174","tag-3677","tag-1790","tag-3334","tag-3679","tag-3678","tag-2322","tag--node","tag-2408","tag-1983","tag-3662","tag-1831","tag-1813"],"acf":[],"_links":{"self":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts\/15152","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/comments?post=15152"}],"version-history":[{"count":0,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts\/15152\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/media\/9045"}],"wp:attachment":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/media?parent=15152"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/categories?post=15152"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/tags?post=15152"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}