{"id":64415,"date":"2024-05-30T20:29:04","date_gmt":"2024-05-30T16:59:04","guid":{"rendered":"https:\/\/nabfollower.com\/blog\/%da%86%d8%b1%d8%a7-%d9%86%d8%a8%d8%a7%db%8c%d8%af-%d8%a7%d8%b2-%d8%aa%d9%88%d8%a7%d8%a8%d8%b9-%d9%be%db%8c%da%a9%d8%a7%d9%86-%d8%af%d8%b1-%d8%ac%d8%a7%d9%88%d8%a7-%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be\/"},"modified":"2024-05-30T20:29:04","modified_gmt":"2024-05-30T16:59:04","slug":"%da%86%d8%b1%d8%a7-%d9%86%d8%a8%d8%a7%db%8c%d8%af-%d8%a7%d8%b2-%d8%aa%d9%88%d8%a7%d8%a8%d8%b9-%d9%be%db%8c%da%a9%d8%a7%d9%86-%d8%af%d8%b1-%d8%ac%d8%a7%d9%88%d8%a7-%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be","status":"publish","type":"post","link":"https:\/\/nabfollower.com\/blog\/%da%86%d8%b1%d8%a7-%d9%86%d8%a8%d8%a7%db%8c%d8%af-%d8%a7%d8%b2-%d8%aa%d9%88%d8%a7%d8%a8%d8%b9-%d9%be%db%8c%da%a9%d8%a7%d9%86-%d8%af%d8%b1-%d8%ac%d8%a7%d9%88%d8%a7-%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be\/","title":{"rendered":"\u0686\u0631\u0627 \u0646\u0628\u0627\u06cc\u062f \u0627\u0632 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(ECMAScript 2015) \u0645\u0639\u0631\u0641\u06cc \u0634\u062f.  \u062a\u0648\u0627\u0628\u0639 Arrow \u0634\u06cc\u0648\u0647 \u0646\u0648\u0634\u062a\u0646 \u0648 \u062f\u0631\u06a9 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u062a\u0648\u0633\u0637 \u062a\u0648\u0633\u0639\u0647 \u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u0631\u0627 \u0645\u062a\u062d\u0648\u0644 \u06a9\u0631\u062f\u0647 \u0627\u0633\u062a.  \u0639\u0644\u06cc\u0631\u063a\u0645 \u0645\u062d\u0628\u0648\u0628\u06cc\u062a \u0648 \u0645\u0641\u06cc\u062f \u0628\u0648\u062f\u0646 \u0622\u0646\u0647\u0627\u060c \u06cc\u06a9 \u0645\u0641\u0647\u0648\u0645 \u062c\u0627\u0644\u0628 \u0628\u0631\u0627\u06cc \u0628\u0631\u0631\u0633\u06cc \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f: \u0686\u0631\u0627 \u0646\u0628\u0627\u06cc\u062f \u0627\u0632 \u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646 \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a 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\u0628\u0628\u0631\u062f.  \u062f\u0631 \u067e\u0627\u06cc\u0627\u0646\u060c \u0645\u062a\u0648\u062c\u0647 \u062e\u0648\u0627\u0647\u06cc\u062f \u0634\u062f \u06a9\u0647 \u0686\u0631\u0627 \u062a\u0648\u0627\u0628\u0639 \u0641\u0644\u0634 \u06cc\u06a9 \u0627\u0628\u0632\u0627\u0631 \u0627\u0631\u0632\u0634\u0645\u0646\u062f \u062f\u0631 \u0632\u0631\u0627\u062f\u062e\u0627\u0646\u0647 \u062a\u0648\u0633\u0639\u0647 \u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0647\u0633\u062a\u0646\u062f.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter-rtl ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u0641\u0647\u0631\u0633\u062a \u0645\u0637\u0627\u0644\u0628<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 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ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/nabfollower.com\/blog\/%da%86%d8%b1%d8%a7-%d9%86%d8%a8%d8%a7%db%8c%d8%af-%d8%a7%d8%b2-%d8%aa%d9%88%d8%a7%d8%a8%d8%b9-%d9%be%db%8c%da%a9%d8%a7%d9%86-%d8%af%d8%b1-%d8%ac%d8%a7%d9%88%d8%a7-%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be\/#%D8%A8%D8%A7%D8%B2%DA%AF%D8%B4%D8%AA_%D8%B6%D9%85%D9%86%DB%8C\" >\u0628\u0627\u0632\u06af\u0634\u062a \u0636\u0645\u0646\u06cc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/nabfollower.com\/blog\/%da%86%d8%b1%d8%a7-%d9%86%d8%a8%d8%a7%db%8c%d8%af-%d8%a7%d8%b2-%d8%aa%d9%88%d8%a7%d8%a8%d8%b9-%d9%be%db%8c%da%a9%d8%a7%d9%86-%d8%af%d8%b1-%d8%ac%d8%a7%d9%88%d8%a7-%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be\/#%D8%A8%D8%AF%D9%88%D9%86_%D8%A7%D8%AA%D8%B5%D8%A7%D9%84_%D8%A7%D8%B2_this\" >\u0628\u062f\u0648\u0646 \u0627\u062a\u0635\u0627\u0644 \u0627\u0632 this<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/nabfollower.com\/blog\/%da%86%d8%b1%d8%a7-%d9%86%d8%a8%d8%a7%db%8c%d8%af-%d8%a7%d8%b2-%d8%aa%d9%88%d8%a7%d8%a8%d8%b9-%d9%be%db%8c%da%a9%d8%a7%d9%86-%d8%af%d8%b1-%d8%ac%d8%a7%d9%88%d8%a7-%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be\/#%D9%85%D9%88%D8%A7%D8%B1%D8%AF_%D8%A7%D8%B3%D8%AA%D9%81%D8%A7%D8%AF%D9%87_%D8%B1%D8%A7%DB%8C%D8%AC\" >\u0645\u0648\u0627\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0631\u0627\u06cc\u062c<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/nabfollower.com\/blog\/%da%86%d8%b1%d8%a7-%d9%86%d8%a8%d8%a7%db%8c%d8%af-%d8%a7%d8%b2-%d8%aa%d9%88%d8%a7%d8%a8%d8%b9-%d9%be%db%8c%da%a9%d8%a7%d9%86-%d8%af%d8%b1-%d8%ac%d8%a7%d9%88%d8%a7-%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be\/#%D8%B1%D9%88%D8%B4_%D9%87%D8%A7%DB%8C_%D8%A2%D8%B1%D8%A7%DB%8C%D9%87\" >\u0631\u0648\u0634 \u0647\u0627\u06cc 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class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/nabfollower.com\/blog\/%da%86%d8%b1%d8%a7-%d9%86%d8%a8%d8%a7%db%8c%d8%af-%d8%a7%d8%b2-%d8%aa%d9%88%d8%a7%d8%a8%d8%b9-%d9%be%db%8c%da%a9%d8%a7%d9%86-%d8%af%d8%b1-%d8%ac%d8%a7%d9%88%d8%a7-%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be\/#%D9%85%D8%AD%D8%AF%D9%88%D8%AF%DB%8C%D8%AA_%D9%87%D8%A7_%D9%88_%D9%85%D9%84%D8%A7%D8%AD%D8%B8%D8%A7%D8%AA\" >\u0645\u062d\u062f\u0648\u062f\u06cc\u062a \u0647\u0627 \u0648 \u0645\u0644\u0627\u062d\u0638\u0627\u062a<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/nabfollower.com\/blog\/%da%86%d8%b1%d8%a7-%d9%86%d8%a8%d8%a7%db%8c%d8%af-%d8%a7%d8%b2-%d8%aa%d9%88%d8%a7%d8%a8%d8%b9-%d9%be%db%8c%da%a9%d8%a7%d9%86-%d8%af%d8%b1-%d8%ac%d8%a7%d9%88%d8%a7-%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be\/#%D8%AE%DB%8C%D8%B1_this_%D8%A7%D9%84%D8%B2%D8%A7%D9%85_%D8%A2%D9%88%D8%B1\" >\u062e\u06cc\u0631 this \u0627\u0644\u0632\u0627\u0645 \u0622\u0648\u0631<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/nabfollower.com\/blog\/%da%86%d8%b1%d8%a7-%d9%86%d8%a8%d8%a7%db%8c%d8%af-%d8%a7%d8%b2-%d8%aa%d9%88%d8%a7%d8%a8%d8%b9-%d9%be%db%8c%da%a9%d8%a7%d9%86-%d8%af%d8%b1-%d8%ac%d8%a7%d9%88%d8%a7-%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be\/#%D8%AE%DB%8C%D8%B1_arguments_%D9%87%D8%AF%D9%81_%E2%80%93_%D8%B4%DB%8C\" >\u062e\u06cc\u0631 arguments \u0647\u062f\u0641 &#8211; \u0634\u06cc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/nabfollower.com\/blog\/%da%86%d8%b1%d8%a7-%d9%86%d8%a8%d8%a7%db%8c%d8%af-%d8%a7%d8%b2-%d8%aa%d9%88%d8%a7%d8%a8%d8%b9-%d9%be%db%8c%da%a9%d8%a7%d9%86-%d8%af%d8%b1-%d8%ac%d8%a7%d9%88%d8%a7-%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be\/#%D8%A8%D8%B1%D8%A7%DB%8C_%D9%85%D8%AA%D8%AF%D9%87%D8%A7_%D9%85%D9%86%D8%A7%D8%B3%D8%A8_%D9%86%DB%8C%D8%B3%D8%AA\" >\u0628\u0631\u0627\u06cc \u0645\u062a\u062f\u0647\u0627 \u0645\u0646\u0627\u0633\u0628 \u0646\u06cc\u0633\u062a<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/nabfollower.com\/blog\/%da%86%d8%b1%d8%a7-%d9%86%d8%a8%d8%a7%db%8c%d8%af-%d8%a7%d8%b2-%d8%aa%d9%88%d8%a7%d8%a8%d8%b9-%d9%be%db%8c%da%a9%d8%a7%d9%86-%d8%af%d8%b1-%d8%ac%d8%a7%d9%88%d8%a7-%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be\/#%DA%A9%D8%AF_%D9%82%D8%A7%D8%A8%D9%84_%D8%AE%D9%88%D8%A7%D9%86%D8%AF%D9%86\" >\u06a9\u062f \u0642\u0627\u0628\u0644 \u062e\u0648\u0627\u0646\u062f\u0646<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/nabfollower.com\/blog\/%da%86%d8%b1%d8%a7-%d9%86%d8%a8%d8%a7%db%8c%d8%af-%d8%a7%d8%b2-%d8%aa%d9%88%d8%a7%d8%a8%d8%b9-%d9%be%db%8c%da%a9%d8%a7%d9%86-%d8%af%d8%b1-%d8%ac%d8%a7%d9%88%d8%a7-%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be\/#%D9%86%D8%AA%DB%8C%D8%AC%D9%87\" >\u0646\u062a\u06cc\u062c\u0647<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"%D9%85%D9%82%D8%AF%D9%85%D9%87_%D8%A7%DB%8C_%D8%A8%D8%B1_%D8%AA%D9%88%D8%A7%D8%A8%D8%B9_%D9%BE%DB%8C%DA%A9%D8%A7%D9%86\"><\/span>\n<p>  \u0645\u0642\u062f\u0645\u0647 \u0627\u06cc \u0628\u0631 \u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646\u06cc \u06a9\u0647 \u0628\u0647 \u062f\u0644\u06cc\u0644 \u0646\u062d\u0648\u06cc \u06a9\u0647 \u062f\u0627\u0631\u0646\u062f \u06af\u0627\u0647\u06cc \u0627\u0648\u0642\u0627\u062a \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u062a\u0648\u0627\u0628\u0639 &#8220;\u0641\u0644\u0634 \u0686\u0631\u0628\u06cc&#8221; \u0634\u0646\u0627\u062e\u062a\u0647 \u0645\u06cc \u0634\u0648\u0646\u062f\u060c \u0631\u0627\u0647 \u0645\u062e\u062a\u0635\u0631\u062a\u0631\u06cc \u0628\u0631\u0627\u06cc \u0646\u0648\u0634\u062a\u0646 \u0639\u0628\u0627\u0631\u0627\u062a \u062a\u0627\u0628\u0639 \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u062f\u0647\u0646\u062f.  \u0622\u0646\u0647\u0627 \u062f\u0631 ES6 \u0628\u0631\u0627\u06cc \u0631\u0641\u0639 \u0645\u0634\u06a9\u0644\u0627\u062a \u0631\u0627\u06cc\u062c \u0648 \u062e\u0648\u0627\u0646\u0627\u06cc\u06cc \u0628\u06cc\u0634\u062a\u0631 \u06a9\u062f \u0648 \u06a9\u0645\u062a\u0631 \u062e\u0637\u0627\u067e\u0630\u06cc\u0631 \u0645\u0639\u0631\u0641\u06cc \u0634\u062f\u0646\u062f.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%D9%86%D8%AD%D9%88_%D9%BE%D8%A7%DB%8C%D9%87\"><\/span>\n<p>  \u0646\u062d\u0648 \u067e\u0627\u06cc\u0647<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0646\u062d\u0648 \u0627\u0635\u0644\u06cc \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u0641\u0644\u0634 \u062f\u0631 \u0645\u0642\u0627\u06cc\u0633\u0647 \u0628\u0627 \u0639\u0628\u0627\u0631\u0627\u062a \u062a\u0627\u0628\u0639 \u0633\u0646\u062a\u06cc \u06a9\u0648\u062a\u0627\u0647 \u062a\u0631 \u0648 \u0633\u0627\u062f\u0647 \u062a\u0631 \u0627\u0633\u062a.  \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u06cc\u06a9 \u0645\u0642\u0627\u06cc\u0633\u0647 \u0627\u0633\u062a:<\/p>\n<p>\u0628\u06cc\u0627\u0646 \u0639\u0645\u0644\u06a9\u0631\u062f \u0633\u0646\u062a\u06cc:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">add<\/span> <span class=\"o\">=<\/span> <span class=\"kd\">function<\/span><span class=\"p\">(<\/span><span class=\"nx\">a<\/span><span class=\"p\">,<\/span> <span class=\"nx\">b<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\n  <span class=\"k\">return<\/span> <span class=\"nx\">a<\/span> <span class=\"o\">+<\/span> <span class=\"nx\">b<\/span><span class=\"p\">;<\/span>\n<span class=\"p\">};<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u062a\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">add<\/span> <span class=\"o\">=<\/span> <span class=\"p\">(<\/span><span class=\"nx\">a<\/span><span class=\"p\">,<\/span> <span class=\"nx\">b<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">a<\/span> <span class=\"o\">+<\/span> <span class=\"nx\">b<\/span><span class=\"p\">;<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u0645\u06cc \u0628\u06cc\u0646\u06cc\u062f\u060c \u0639\u0645\u0644\u06a9\u0631\u062f\u0647\u0627\u06cc \u067e\u06cc\u06a9\u0627\u0646 \u06a9\u062f \u062f\u06cc\u06af \u0628\u062e\u0627\u0631 \u0631\u0627 \u06a9\u0627\u0647\u0634 \u0645\u06cc \u062f\u0647\u0646\u062f\u060c \u0622\u0646\u0647\u0627 \u0631\u0627 \u0645\u062e\u062a\u0635\u0631\u062a\u0631 \u0648 \u062e\u0648\u0627\u0646\u0627\u062a\u0631 \u0645\u06cc \u06a9\u0646\u062f \u0648 \u0628\u0647 \u0647\u0645\u06cc\u0646 \u062f\u0644\u06cc\u0644 \u0627\u0633\u062a \u06a9\u0647 \u0646\u0628\u0627\u06cc\u062f \u0627\u0632 \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f. <em>\u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646<\/em>.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%D8%A7%D8%B1%D8%B2%D8%B4_%D9%87%D8%A7%DB%8C_%D8%A8%D8%A7%D8%B2%DA%AF%D8%B4%D8%AA%DB%8C\"><\/span>\n<p>  \u0627\u0631\u0632\u0634 \u0647\u0627\u06cc \u0628\u0627\u0632\u06af\u0634\u062a\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u0646\u062f \u0645\u0642\u0627\u062f\u06cc\u0631 \u0631\u0627 \u0628\u0647 \u0637\u0648\u0631 \u0636\u0645\u0646\u06cc \u0628\u062f\u0648\u0646 <code>return<\/code> \u06a9\u0644\u0645\u0647 \u06a9\u0644\u06cc\u062f\u06cc \u0647\u0646\u06af\u0627\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u062a\u0646 \u0645\u062e\u062a\u0635\u0631  \u0628\u0631\u0627\u06cc \u06cc\u06a9 \u0639\u0628\u0627\u0631\u062a \u0648\u0627\u062d\u062f\u060c \u0645\u0642\u062f\u0627\u0631 \u0639\u0628\u0627\u0631\u062a \u0628\u0647 \u0637\u0648\u0631 \u0636\u0645\u0646\u06cc \u0628\u0631\u06af\u0631\u062f\u0627\u0646\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">square<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">x<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">x<\/span> <span class=\"o\">*<\/span> <span class=\"nx\">x<\/span><span class=\"p\">;<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0628\u0631\u0627\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f \u067e\u06cc\u0686\u06cc\u062f\u0647 \u062a\u0631\u060c \u0627\u0632 \u0628\u0631\u06cc\u0633 \u0647\u0627\u06cc \u0641\u0631\u0641\u0631\u06cc \u0648 <code>return<\/code> \u06a9\u0644\u0645\u0647 \u06a9\u0644\u06cc\u062f\u06cc:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">sum<\/span> <span class=\"o\">=<\/span> <span class=\"p\">(<\/span><span class=\"nx\">a<\/span><span class=\"p\">,<\/span> <span class=\"nx\">b<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n  <span class=\"kd\">const<\/span> <span class=\"nx\">result<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">a<\/span> <span class=\"o\">+<\/span> <span class=\"nx\">b<\/span><span class=\"p\">;<\/span>\n  <span class=\"k\">return<\/span> <span class=\"nx\">result<\/span><span class=\"p\">;<\/span>\n<span class=\"p\">};<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"%DA%A9%D9%86%D8%AA%D8%B1%D9%84_%D9%BE%D8%A7%D8%B1%D8%A7%D9%85%D8%AA%D8%B1%D9%87%D8%A7\"><\/span>\n<p>  \u06a9\u0646\u062a\u0631\u0644 \u067e\u0627\u0631\u0627\u0645\u062a\u0631\u0647\u0627<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646 \u067e\u0627\u0631\u0627\u0645\u062a\u0631\u0647\u0627 \u0631\u0627 \u0645\u0634\u0627\u0628\u0647 \u062a\u0648\u0627\u0628\u0639 \u0633\u0646\u062a\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u0645\u06cc \u06a9\u0646\u0646\u062f.  \u0628\u0627 \u06cc\u06a9 \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u0648\u0627\u062d\u062f\u060c \u067e\u0631\u0627\u0646\u062a\u0632 \u0627\u062e\u062a\u06cc\u0627\u0631\u06cc \u0627\u0633\u062a:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">double<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">x<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">x<\/span> <span class=\"o\">*<\/span> <span class=\"mi\">2<\/span><span class=\"p\">;<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0628\u0631\u0627\u06cc \u067e\u0627\u0631\u0627\u0645\u062a\u0631\u0647\u0627\u06cc \u0635\u0641\u0631 \u06cc\u0627 \u0686\u0646\u062f\u06af\u0627\u0646\u0647\u060c \u067e\u0631\u0627\u0646\u062a\u0632 \u0645\u0648\u0631\u062f \u0646\u06cc\u0627\u0632 \u0627\u0633\u062a:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">greet<\/span> <span class=\"o\">=<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">Hello, world!<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\n<span class=\"kd\">const<\/span> <span class=\"nx\">multiply<\/span> <span class=\"o\">=<\/span> <span class=\"p\">(<\/span><span class=\"nx\">a<\/span><span class=\"p\">,<\/span> <span class=\"nx\">b<\/span><span class=\"p\">,<\/span> <span class=\"nx\">c<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">a<\/span> <span class=\"o\">*<\/span> <span class=\"nx\">b<\/span> <span class=\"o\">*<\/span> <span class=\"nx\">c<\/span><span class=\"p\">;<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"%D9%85%D8%B2%D8%A7%DB%8C%D8%A7%DB%8C_%D8%B9%D9%85%D9%84%DA%A9%D8%B1%D8%AF%D9%87%D8%A7%DB%8C_%D9%BE%DB%8C%DA%A9%D8%A7%D9%86\"><\/span>\n<p>  \u0645\u0632\u0627\u06cc\u0627\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f\u0647\u0627\u06cc \u067e\u06cc\u06a9\u0627\u0646<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646 \u0686\u0646\u062f\u06cc\u0646 \u0645\u0632\u06cc\u062a \u062f\u0627\u0631\u0646\u062f \u06a9\u0647 \u062a\u062c\u0631\u0628\u0647 \u06a9\u062f\u0646\u0648\u06cc\u0633\u06cc \u0631\u0627 \u0628\u0647\u0628\u0648\u062f \u0645\u06cc \u0628\u062e\u0634\u062f \u0648 \u06a9\u06cc\u0641\u06cc\u062a \u06a9\u062f \u0631\u0627 \u0628\u0647\u0628\u0648\u062f \u0645\u06cc \u0628\u062e\u0634\u062f\u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0646\u0628\u0627\u06cc\u062f \u0627\u0632 \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f <em>\u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646<\/em>.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%D9%88%D8%A7%DA%98%DA%AF%D8%A7%D9%86%DB%8C_this\"><\/span>\n<p>  \u0648\u0627\u0698\u06af\u0627\u0646\u06cc <code>this<\/code><br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u06cc\u06a9\u06cc \u0627\u0632 \u0645\u0647\u0645\u062a\u0631\u06cc\u0646 \u0645\u0632\u0627\u06cc\u0627\u06cc \u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646\u060c \u0645\u062d\u062f\u0648\u062f\u0647 \u0648\u0627\u0698\u06af\u0627\u0646\u06cc \u0622\u0646\u0647\u0627\u0633\u062a <code>this<\/code>.  \u0628\u0631\u062e\u0644\u0627\u0641 \u062a\u0648\u0627\u0628\u0639 \u0633\u0646\u062a\u06cc\u060c \u062a\u0648\u0627\u0628\u0639 \u0641\u0644\u0634 \u0645\u062e\u062a\u0635 \u0628\u0647 \u062e\u0648\u062f \u0646\u06cc\u0633\u062a\u0646\u062f <code>this<\/code> \u0645\u062a\u0646 \u0646\u0648\u0634\u062a\u0647.  \u062f\u0631 \u0639\u0648\u0636\u060c \u0627\u0631\u062b \u0645\u06cc \u0628\u0631\u0646\u062f <code>this<\/code> \u0627\u0632 \u0645\u062d\u062f\u0648\u062f\u0647 \u0648\u0627\u0644\u062f \u06a9\u0647 \u062f\u0631 \u0622\u0646 \u062a\u0639\u0631\u06cc\u0641 \u0634\u062f\u0647 \u0627\u0646\u062f.  \u0627\u06cc\u0646 \u0631\u0641\u062a\u0627\u0631 \u0645\u0634\u06a9\u0644\u0627\u062a \u0631\u0627\u06cc\u062c \u0645\u0631\u062a\u0628\u0637 \u0628\u0627 <code>this<\/code> \u06a9\u0644\u0645\u0647 \u06a9\u0644\u06cc\u062f\u06cc.<\/p>\n<p>\u0645\u062b\u0627\u0644 \u0632\u06cc\u0631 \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u0633\u0646\u062a\u06cc \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"kd\">function<\/span> <span class=\"nf\">Person<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\n  <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">age<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">0<\/span><span class=\"p\">;<\/span>\n\n  <span class=\"nf\">setInterval<\/span><span class=\"p\">(<\/span><span class=\"kd\">function<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\n    <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">age<\/span><span class=\"o\">++<\/span><span class=\"p\">;<\/span>\n    <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">age<\/span><span class=\"p\">);<\/span>\n  <span class=\"p\">},<\/span> <span class=\"mi\">1000<\/span><span class=\"p\">);<\/span>\n<span class=\"p\">}<\/span>\n\n<span class=\"kd\">const<\/span> <span class=\"nx\">person<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">Person<\/span><span class=\"p\">();<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u062f\u0631 \u06a9\u062f \u0628\u0627\u0644\u0627\u060c <code>this<\/code> \u062f\u0631\u0648\u0646 <code>setInterval<\/code> \u062a\u0645\u0627\u0633 \u0628\u0631\u06af\u0634\u062a\u06cc \u0628\u0647 \u0634\u06cc \u0633\u0631\u0627\u0633\u0631\u06cc \u0627\u0634\u0627\u0631\u0647 \u062f\u0627\u0631\u062f (<code>window<\/code> \u062f\u0631 \u0645\u0631\u0648\u0631\u06af\u0631\u0647\u0627)\u060c \u0646\u0647 <code>Person<\/code> \u0646\u0645\u0648\u0646\u0647\u060c \u0645\u062b\u0627\u0644.  \u0627\u06cc\u0646 \u0645\u0646\u062c\u0631 \u0628\u0647 <code>NaN<\/code> \u0647\u0631 \u062b\u0627\u0646\u06cc\u0647 \u062b\u0628\u062a \u0645\u06cc \u0634\u0648\u062f<\/p>\n<p>\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062a\u0627\u0628\u0639 \u0641\u0644\u0634 \u0627\u06cc\u0646 \u0645\u0634\u06a9\u0644 \u0631\u0627 \u062d\u0644 \u0645\u06cc \u06a9\u0646\u062f:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"kd\">function<\/span> <span class=\"nf\">Person<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\n  <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">age<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">0<\/span><span class=\"p\">;<\/span>\n\n  <span class=\"nf\">setInterval<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n    <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">age<\/span><span class=\"o\">++<\/span><span class=\"p\">;<\/span>\n    <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">age<\/span><span class=\"p\">);<\/span>\n  <span class=\"p\">},<\/span> <span class=\"mi\">1000<\/span><span class=\"p\">);<\/span>\n<span class=\"p\">}<\/span>\n\n<span class=\"kd\">const<\/span> <span class=\"nx\">person<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">Person<\/span><span class=\"p\">();<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0627\u06a9\u0646\u0648\u0646\u060c <code>this<\/code> \u062f\u0631 \u062f\u0627\u062e\u0644 \u062a\u0627\u0628\u0639 \u0641\u0644\u0634 \u0627\u0634\u0627\u0631\u0647 \u0628\u0647 <code>Person<\/code> \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c \u0648 \u0633\u0646 \u0628\u0647 \u062f\u0631\u0633\u062a\u06cc \u0627\u0641\u0632\u0627\u06cc\u0634 \u0645\u06cc \u06cc\u0627\u0628\u062f.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%D9%85%D8%AE%D8%AA%D8%B5%D8%B1_%D8%A8%D9%88%D8%AF%D9%86\"><\/span>\n<p>  \u0645\u062e\u062a\u0635\u0631 \u0628\u0648\u062f\u0646<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0639\u0645\u0644\u06a9\u0631\u062f\u0647\u0627\u06cc \u067e\u06cc\u06a9\u0627\u0646 \u0645\u0642\u062f\u0627\u0631 \u06a9\u062f \u062f\u06cc\u06af \u0628\u062e\u0627\u0631 \u0631\u0627 \u06a9\u0627\u0647\u0634 \u0645\u06cc \u062f\u0647\u062f.  \u0627\u06cc\u0646 \u0645\u062e\u062a\u0635\u0631 \u062e\u0648\u0627\u0646\u0627\u06cc\u06cc \u0631\u0627 \u0628\u0647\u0628\u0648\u062f \u0645\u06cc \u0628\u062e\u0634\u062f \u0648 \u0627\u062d\u062a\u0645\u0627\u0644 \u062e\u0637\u0627 \u0631\u0627 \u06a9\u0627\u0647\u0634 \u0645\u06cc \u062f\u0647\u062f \u0648 \u0628\u0647 \u0647\u0645\u06cc\u0646 \u062f\u0644\u06cc\u0644 \u0627\u0633\u062a \u06a9\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0646\u06a9\u0646\u06cc\u062f <em>\u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646<\/em> :<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"c1\">\/\/ Traditional function<\/span>\n<span class=\"kd\">const<\/span> <span class=\"nx\">numbers<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span><span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"mi\">2<\/span><span class=\"p\">,<\/span> <span class=\"mi\">3<\/span><span class=\"p\">,<\/span> <span class=\"mi\">4<\/span><span class=\"p\">,<\/span> <span class=\"mi\">5<\/span><span class=\"p\">];<\/span>\n<span class=\"kd\">const<\/span> <span class=\"nx\">doubled<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">numbers<\/span><span class=\"p\">.<\/span><span class=\"nf\">map<\/span><span class=\"p\">(<\/span><span class=\"kd\">function<\/span><span class=\"p\">(<\/span><span class=\"nx\">number<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\n  <span class=\"k\">return<\/span> <span class=\"nx\">number<\/span> <span class=\"o\">*<\/span> <span class=\"mi\">2<\/span><span class=\"p\">;<\/span>\n<span class=\"p\">});<\/span>\n\n<span class=\"c1\">\/\/ Arrow function<\/span>\n<span class=\"kd\">const<\/span> <span class=\"nx\">doubled<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">numbers<\/span><span class=\"p\">.<\/span><span class=\"nf\">map<\/span><span class=\"p\">(<\/span><span class=\"nx\">number<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">number<\/span> <span class=\"o\">*<\/span> <span class=\"mi\">2<\/span><span class=\"p\">);<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"%D8%A8%D8%A7%D8%B2%DA%AF%D8%B4%D8%AA_%D8%B6%D9%85%D9%86%DB%8C\"><\/span>\n<p>  \u0628\u0627\u0632\u06af\u0634\u062a \u0636\u0645\u0646\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0628\u0631\u0627\u06cc \u062a\u0648\u0627\u0628\u0639\u06cc \u0628\u0627 \u06cc\u06a9 \u0639\u0628\u0627\u0631\u062a \u0648\u0627\u062d\u062f\u060c \u062a\u0648\u0627\u0628\u0639 \u0641\u0644\u0634 \u0627\u0645\u06a9\u0627\u0646 \u0628\u0627\u0632\u06af\u0634\u062a \u0636\u0645\u0646\u06cc \u0631\u0627 \u0641\u0631\u0627\u0647\u0645 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f \u0648 \u0646\u06cc\u0627\u0632 \u0628\u0647 \u0622\u0646 \u0631\u0627 \u0627\u0632 \u0628\u06cc\u0646 \u0645\u06cc\u200c\u0628\u0631\u0646\u062f <code>return<\/code> \u06a9\u0644\u0645\u0647 \u06a9\u0644\u06cc\u062f\u06cc \u0648 \u0628\u0647 \u0647\u0645\u06cc\u0646 \u062f\u0644\u06cc\u0644 \u0627\u0633\u062a \u06a9\u0647 \u0646\u0628\u0627\u06cc\u062f \u0627\u0632 \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f <em>\u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646<\/em>.  :<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">getLength<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">str<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">str<\/span><span class=\"p\">.<\/span><span class=\"nx\">length<\/span><span class=\"p\">;<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0627\u06cc\u0646 \u0628\u0627\u0632\u06af\u0634\u062a \u0636\u0645\u0646\u06cc \u06a9\u062f \u0631\u0627 \u062a\u0645\u06cc\u0632\u062a\u0631 \u0648 \u062e\u0648\u0627\u0646\u0627\u062a\u0631 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0646\u0628\u0627\u06cc\u062f \u0627\u0632 \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f <em>\u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646<\/em>.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%D8%A8%D8%AF%D9%88%D9%86_%D8%A7%D8%AA%D8%B5%D8%A7%D9%84_%D8%A7%D8%B2_this\"><\/span>\n<p>  \u0628\u062f\u0648\u0646 \u0627\u062a\u0635\u0627\u0644 \u0627\u0632 <code>this<\/code><br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646 \u062e\u0648\u062f \u0631\u0627 \u0646\u062f\u0627\u0631\u0646\u062f <code>this<\/code>\u060c <code>arguments<\/code>\u060c <code>super<\/code>\u060c \u06cc\u0627 <code>new.target<\/code> \u0627\u062a\u0635\u0627\u0644\u0627\u062a  \u0622\u0646\u0647\u0627 \u0628\u0631\u0627\u06cc \u062a\u0648\u0627\u0628\u0639 \u063a\u06cc\u0631 \u0645\u062a\u062f \u06a9\u0647 \u0646\u06cc\u0627\u0632\u06cc \u0628\u0647 \u0627\u062a\u0635\u0627\u0644\u0627\u062a \u062e\u0627\u0635 \u062e\u0648\u062f \u0646\u062f\u0627\u0631\u0646\u062f \u0645\u0646\u0627\u0633\u0628 \u0647\u0633\u062a\u0646\u062f.  \u0627\u06cc\u0646 \u0631\u0641\u062a\u0627\u0631 \u0628\u0647 \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632 \u0627\u0634\u062a\u0628\u0627\u0647\u0627\u062a \u0631\u0627\u06cc\u062c \u0645\u0631\u062a\u0628\u0637 \u0628\u0627 <code>this<\/code> binding \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%D9%85%D9%88%D8%A7%D8%B1%D8%AF_%D8%A7%D8%B3%D8%AA%D9%81%D8%A7%D8%AF%D9%87_%D8%B1%D8%A7%DB%8C%D8%AC\"><\/span>\n<p>  \u0645\u0648\u0627\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0631\u0627\u06cc\u062c<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646 \u062f\u0631 \u0633\u0646\u0627\u0631\u06cc\u0648\u0647\u0627\u06cc \u062e\u0627\u0635 \u0639\u0627\u0644\u06cc \u0647\u0633\u062a\u0646\u062f \u0648 \u0622\u0646\u0647\u0627 \u0631\u0627 \u0628\u0647 \u0627\u0628\u0632\u0627\u0631\u06cc \u0627\u0631\u0632\u0634\u0645\u0646\u062f \u062f\u0631 \u062c\u0639\u0628\u0647 \u0627\u0628\u0632\u0627\u0631 \u062a\u0648\u0633\u0639\u0647 \u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u062a\u0628\u062f\u06cc\u0644 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%D8%B1%D9%88%D8%B4_%D9%87%D8%A7%DB%8C_%D8%A2%D8%B1%D8%A7%DB%8C%D9%87\"><\/span>\n<p>  \u0631\u0648\u0634 \u0647\u0627\u06cc \u0622\u0631\u0627\u06cc\u0647<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0631\u0648\u0634 \u0647\u0627\u06cc \u0622\u0631\u0627\u06cc\u0647 \u0645\u0627\u0646\u0646\u062f <code>map<\/code>\u060c <code>filter<\/code>\u060c <code>reduce<\/code>\u060c \u0648 <code>forEach<\/code> \u0645\u06a9\u0627\u0646 \u0647\u0627\u06cc \u0631\u0627\u06cc\u062c\u06cc \u0647\u0633\u062a\u0646\u062f \u06a9\u0647 \u062a\u0648\u0627\u0628\u0639 \u0641\u0644\u0634 \u0645\u06cc \u062f\u0631\u062e\u0634\u0646\u062f:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">numbers<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span><span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"mi\">2<\/span><span class=\"p\">,<\/span> <span class=\"mi\">3<\/span><span class=\"p\">,<\/span> <span class=\"mi\">4<\/span><span class=\"p\">,<\/span> <span class=\"mi\">5<\/span><span class=\"p\">];<\/span>\n<span class=\"kd\">const<\/span> <span class=\"nx\">squared<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">numbers<\/span><span class=\"p\">.<\/span><span class=\"nf\">map<\/span><span class=\"p\">(<\/span><span class=\"nx\">number<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">number<\/span> <span class=\"o\">*<\/span> <span class=\"nx\">number<\/span><span class=\"p\">);<\/span>\n\n<span class=\"kd\">const<\/span> <span class=\"nx\">evens<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">numbers<\/span><span class=\"p\">.<\/span><span class=\"nf\">filter<\/span><span class=\"p\">(<\/span><span class=\"nx\">number<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">number<\/span> <span class=\"o\">%<\/span> <span class=\"mi\">2<\/span> <span class=\"o\">===<\/span> <span class=\"mi\">0<\/span><span class=\"p\">);<\/span>\n\n<span class=\"kd\">const<\/span> <span class=\"nx\">sum<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">numbers<\/span><span class=\"p\">.<\/span><span class=\"nf\">reduce<\/span><span class=\"p\">((<\/span><span class=\"nx\">total<\/span><span class=\"p\">,<\/span> <span class=\"nx\">number<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">total<\/span> <span class=\"o\">+<\/span> <span class=\"nx\">number<\/span><span class=\"p\">,<\/span> <span class=\"mi\">0<\/span><span class=\"p\">);<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646 \u0631\u0648\u0634\u06cc \u062a\u0645\u06cc\u0632 \u0648 \u0645\u062e\u062a\u0635\u0631 \u0628\u0631\u0627\u06cc \u0627\u062c\u0631\u0627\u06cc \u0627\u06cc\u0646 \u0639\u0645\u0644\u06cc\u0627\u062a \u0622\u0631\u0627\u06cc\u0647 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u062f\u0647\u0646\u062f\u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0646\u0628\u0627\u06cc\u062f \u0627\u0632 \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f <em>\u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646<\/em>.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%D8%B4%D9%86%D9%88%D9%86%D8%AF%DA%AF%D8%A7%D9%86_%D8%B1%D9%88%DB%8C%D8%AF%D8%A7%D8%AF\"><\/span>\n<p>  \u0634\u0646\u0648\u0646\u062f\u06af\u0627\u0646 \u0631\u0648\u06cc\u062f\u0627\u062f<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646 \u0631\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0634\u0646\u0648\u0646\u062f\u0647 \u0631\u0648\u06cc\u062f\u0627\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f\u060c \u0627\u06af\u0631\u0686\u0647 \u0628\u0627\u06cc\u062f \u062f\u0631 \u0645\u0648\u0631\u062f \u0622\u0646 \u0627\u062d\u062a\u06cc\u0627\u0637 \u06a9\u0631\u062f <code>this<\/code> \u0645\u062a\u0646 \u0646\u0648\u0634\u062a\u0647:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"nb\">document<\/span><span class=\"p\">.<\/span><span class=\"nf\">getElementById<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">button<\/span><span class=\"dl\">'<\/span><span class=\"p\">).<\/span><span class=\"nf\">addEventListener<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">click<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">Button clicked<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\n<span class=\"p\">});<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"%D9%88%D8%B9%D8%AF%D9%87_%D9%87%D8%A7\"><\/span>\n<p>  \u0648\u0639\u062f\u0647 \u0647\u0627<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0647\u0646\u06af\u0627\u0645 \u06a9\u0627\u0631 \u0628\u0627 Promises\u060c \u062a\u0648\u0627\u0628\u0639 \u0641\u0644\u0634 \u0632\u0646\u062c\u06cc\u0631\u0647 \u0627\u06cc \u0631\u0627 \u0633\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u0646\u062f <code>then<\/code> \u0648 <code>catch<\/code> \u06a9\u0646\u062a\u0631\u0644 \u06a9\u0646\u0646\u062f\u0647 \u0647\u0627:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"nf\">fetch<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">https:\/\/api.example.com\/data<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\n  <span class=\"p\">.<\/span><span class=\"nf\">then<\/span><span class=\"p\">(<\/span><span class=\"nx\">response<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">response<\/span><span class=\"p\">.<\/span><span class=\"nf\">json<\/span><span class=\"p\">())<\/span>\n  <span class=\"p\">.<\/span><span class=\"nf\">then<\/span><span class=\"p\">(<\/span><span class=\"nx\">data<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">data<\/span><span class=\"p\">))<\/span>\n  <span class=\"p\">.<\/span><span class=\"k\">catch<\/span><span class=\"p\">(<\/span><span class=\"nx\">error<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">error<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">Error:<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"nx\">error<\/span><span class=\"p\">));<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"%D9%85%D8%AD%D8%AF%D9%88%D8%AF%DB%8C%D8%AA_%D9%87%D8%A7_%D9%88_%D9%85%D9%84%D8%A7%D8%AD%D8%B8%D8%A7%D8%AA\"><\/span>\n<p>  \u0645\u062d\u062f\u0648\u062f\u06cc\u062a \u0647\u0627 \u0648 \u0645\u0644\u0627\u062d\u0638\u0627\u062a<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0628\u0627 \u0648\u062c\u0648\u062f \u0645\u0632\u0627\u06cc\u0627\u06cc \u0641\u0631\u0627\u0648\u0627\u0646\u060c \u062a\u0648\u0627\u0628\u0639 \u0641\u0644\u0634 \u062f\u0627\u0631\u0627\u06cc \u0645\u062d\u062f\u0648\u062f\u06cc\u062a \u0647\u0627 \u0648 \u0645\u0644\u0627\u062d\u0638\u0627\u062a\u06cc \u0647\u0633\u062a\u0646\u062f \u06a9\u0647 \u062a\u0648\u0633\u0639\u0647 \u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u0628\u0627\u06cc\u062f \u0627\u0632 \u0622\u0646 \u0622\u06af\u0627\u0647 \u0628\u0627\u0634\u0646\u062f.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%D8%AE%DB%8C%D8%B1_this_%D8%A7%D9%84%D8%B2%D8%A7%D9%85_%D8%A2%D9%88%D8%B1\"><\/span>\n<p>  \u062e\u06cc\u0631 <code>this<\/code> \u0627\u0644\u0632\u0627\u0645 \u0622\u0648\u0631<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646 \u062e\u0648\u062f \u0631\u0627 \u0646\u062f\u0627\u0631\u0646\u062f <code>this<\/code> \u0627\u0644\u0632\u0627\u0645 \u0622\u0648\u0631.  \u0627\u06cc\u0646 \u0631\u0641\u062a\u0627\u0631 \u062f\u0631 \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u0645\u0648\u0627\u0631\u062f \u0633\u0648\u062f\u0645\u0646\u062f \u0627\u0633\u062a\u060c \u0627\u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0647\u0646\u06af\u0627\u0645 \u062a\u0639\u0631\u06cc\u0641 \u0631\u0648\u0634 \u0647\u0627\u06cc \u0634\u06cc \u0645\u0634\u06a9\u0644 \u0633\u0627\u0632 \u0628\u0627\u0634\u062f:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">person<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\n  <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">Alice<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\n  <span class=\"na\">greet<\/span><span class=\"p\">:<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n    <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"s2\">`Hello, my name is <\/span><span class=\"p\">${<\/span><span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">name<\/span><span class=\"p\">}<\/span><span class=\"s2\">`<\/span><span class=\"p\">);<\/span>\n  <span class=\"p\">}<\/span>\n<span class=\"p\">};<\/span>\n\n<span class=\"nx\">person<\/span><span class=\"p\">.<\/span><span class=\"nf\">greet<\/span><span class=\"p\">();<\/span> <span class=\"c1\">\/\/ Output: Hello, my name is undefined<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u062f\u0631 \u0645\u062b\u0627\u0644 \u0628\u0627\u0644\u0627\u060c <code>this.name<\/code> \u0627\u0633\u062a <code>undefined<\/code> \u0632\u06cc\u0631\u0627 <code>this<\/code> \u062f\u0627\u062e\u0644 \u062a\u0627\u0628\u0639 arrow \u0628\u0647 \u0632\u0645\u06cc\u0646\u0647 \u0628\u06cc\u0631\u0648\u0646\u06cc \u0627\u0634\u0627\u0631\u0647 \u062f\u0627\u0631\u062f \u0646\u0647 \u0628\u0647 <code>person<\/code> \u0647\u062f\u0641 &#8211; \u0634\u06cc.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%D8%AE%DB%8C%D8%B1_arguments_%D9%87%D8%AF%D9%81_%E2%80%93_%D8%B4%DB%8C\"><\/span>\n<p>  \u062e\u06cc\u0631 <code>arguments<\/code> \u0647\u062f\u0641 &#8211; \u0634\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646 \u062e\u0648\u062f \u0631\u0627 \u0646\u062f\u0627\u0631\u0646\u062f <code>arguments<\/code> \u0647\u062f\u0641 &#8211; \u0634\u06cc.  \u062f\u0631 \u0639\u0648\u0636\u060c \u0622\u0646\u0647\u0627 \u0628\u0631 \u0631\u0648\u06cc <code>arguments<\/code> \u0634\u06cc \u0627\u0632 \u0645\u062d\u062f\u0648\u062f\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u06cc\u0631\u0648\u0646\u06cc.  \u0627\u06cc\u0646 \u0631\u0641\u062a\u0627\u0631 \u0647\u0646\u06af\u0627\u0645 \u06a9\u0627\u0631 \u0628\u0627 \u062a\u0648\u0627\u0628\u0639\u06cc \u06a9\u0647 \u0646\u06cc\u0627\u0632 \u0628\u0647 \u0645\u062f\u06cc\u0631\u06cc\u062a \u062a\u0639\u062f\u0627\u062f \u0645\u062a\u063a\u06cc\u0631\u06cc \u0627\u0632 \u0622\u0631\u06af\u0648\u0645\u0627\u0646 \u0647\u0627 \u062f\u0627\u0631\u0646\u062f \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0645\u062d\u062f\u0648\u062f \u06a9\u0646\u0646\u062f\u0647 \u0628\u0627\u0634\u062f:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">add<\/span> <span class=\"o\">=<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">arguments<\/span><span class=\"p\">);<\/span>\n<span class=\"p\">};<\/span>\n\n<span class=\"nf\">add<\/span><span class=\"p\">(<\/span><span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"mi\">2<\/span><span class=\"p\">,<\/span> <span class=\"mi\">3<\/span><span class=\"p\">);<\/span> <span class=\"c1\">\/\/ Output: Uncaught ReferenceError: arguments is not defined<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u067e\u0627\u0631\u0627\u0645\u062a\u0631\u0647\u0627\u06cc \u0627\u0633\u062a\u0631\u0627\u062d\u062a \u06cc\u06a9 \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0645\u0646\u0627\u0633\u0628 \u0627\u0633\u062a:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">add<\/span> <span class=\"o\">=<\/span> <span class=\"p\">(...<\/span><span class=\"nx\">args<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">args<\/span><span class=\"p\">);<\/span>\n<span class=\"p\">};<\/span>\n\n<span class=\"nf\">add<\/span><span class=\"p\">(<\/span><span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"mi\">2<\/span><span class=\"p\">,<\/span> <span class=\"mi\">3<\/span><span class=\"p\">);<\/span> <span class=\"c1\">\/\/ Output: [1, 2, 3]<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"%D8%A8%D8%B1%D8%A7%DB%8C_%D9%85%D8%AA%D8%AF%D9%87%D8%A7_%D9%85%D9%86%D8%A7%D8%B3%D8%A8_%D9%86%DB%8C%D8%B3%D8%AA\"><\/span>\n<p>  \u0628\u0631\u0627\u06cc \u0645\u062a\u062f\u0647\u0627 \u0645\u0646\u0627\u0633\u0628 \u0646\u06cc\u0633\u062a<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646 \u0646\u0628\u0627\u06cc\u062f \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062a\u062f \u062f\u0631 \u0627\u0634\u06cc\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u0648\u0646\u062f\u060c \u0632\u06cc\u0631\u0627 \u062e\u0648\u062f \u0622\u0646\u0647\u0627 \u0631\u0627 \u0646\u062f\u0627\u0631\u0646\u062f <code>this<\/code> \u0627\u0644\u0632\u0627\u0645 \u0622\u0648\u0631:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">person<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\n  <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">Bob<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\n  <span class=\"na\">greet<\/span><span class=\"p\">:<\/span> <span class=\"kd\">function<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\n    <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"s2\">`Hello, my name is <\/span><span class=\"p\">${<\/span><span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">name<\/span><span class=\"p\">}<\/span><span class=\"s2\">`<\/span><span class=\"p\">);<\/span>\n  <span class=\"p\">}<\/span>\n<span class=\"p\">};<\/span>\n\n<span class=\"nx\">person<\/span><span class=\"p\">.<\/span><span class=\"nf\">greet<\/span><span class=\"p\">();<\/span> <span class=\"c1\">\/\/ Output: Hello, my name is Bob<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u0648\u0631\u062f\u060c \u06cc\u06a9 \u0639\u0628\u0627\u0631\u062a \u062a\u0627\u0628\u0639 \u0633\u0646\u062a\u06cc \u0628\u0631\u0627\u06cc \u0645\u062a\u062f\u0647\u0627\u06cc \u0634\u06cc \u0645\u0646\u0627\u0633\u0628 \u062a\u0631 \u0627\u0633\u062a.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%DA%A9%D8%AF_%D9%82%D8%A7%D8%A8%D9%84_%D8%AE%D9%88%D8%A7%D9%86%D8%AF%D9%86\"><\/span>\n<p>  \u06a9\u062f \u0642\u0627\u0628\u0644 \u062e\u0648\u0627\u0646\u062f\u0646<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f\u0647\u0627\u06cc \u067e\u06cc\u06a9\u0627\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u06a9\u062f \u0631\u0627 \u0645\u062e\u062a\u0635\u0631\u062a\u0631 \u06a9\u0646\u0646\u062f\u060c \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0628\u06cc\u0634 \u0627\u0632 \u062d\u062f \u0627\u0632 \u0622\u0646\u0647\u0627 \u06cc\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0646\u0627\u0645\u0646\u0627\u0633\u0628 \u0627\u0632 \u0622\u0646\u0647\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0647 \u062e\u0648\u0627\u0646\u0627\u06cc\u06cc \u06a9\u062f \u0622\u0633\u06cc\u0628 \u0628\u0631\u0633\u0627\u0646\u062f.  \u0645\u0648\u062c\u0632 \u0628\u0648\u062f\u0646 \u0631\u0627 \u0628\u0627 \u0648\u0636\u0648\u062d \u0645\u062a\u0639\u0627\u062f\u0644 \u06a9\u0646\u06cc\u062f\u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0646\u0628\u0627\u06cc\u062f \u0627\u0632 \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f <em>\u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646<\/em> :<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"c1\">\/\/ Less readable due to excessive chaining<\/span>\n<span class=\"kd\">const<\/span> <span class=\"nx\">result<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">data<\/span><span class=\"p\">.<\/span><span class=\"nf\">map<\/span><span class=\"p\">(<\/span><span class=\"nx\">x<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">x<\/span><span class=\"p\">.<\/span><span class=\"nx\">value<\/span><span class=\"p\">).<\/span><span class=\"nf\">filter<\/span><span class=\"p\">(<\/span><span class=\"nx\">val<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">val<\/span> <span class=\"o\">&gt;<\/span> <span class=\"mi\">10<\/span><span class=\"p\">).<\/span><span class=\"nf\">reduce<\/span><span class=\"p\">((<\/span><span class=\"nx\">sum<\/span><span class=\"p\">,<\/span> <span class=\"nx\">val<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">sum<\/span> <span class=\"o\">+<\/span> <span class=\"nx\">val<\/span><span class=\"p\">,<\/span> <span class=\"mi\">0<\/span><span class=\"p\">);<\/span>\n\n<span class=\"c1\">\/\/ More readable with intermediate variables<\/span>\n<span class=\"kd\">const<\/span> <span class=\"nx\">values<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">data<\/span><span class=\"p\">.<\/span><span class=\"nf\">map<\/span><span class=\"p\">(<\/span><span class=\"nx\">x<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">x<\/span><span class=\"p\">.<\/span><span class=\"nx\">value<\/span><span class=\"p\">);<\/span>\n<span class=\"kd\">const<\/span> <span class=\"nx\">filteredValues<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">values<\/span><span class=\"p\">.<\/span><span class=\"nf\">filter<\/span><span class=\"p\">(<\/span><span class=\"nx\">val<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">val<\/span> <span class=\"o\">&gt;<\/span> <span class=\"mi\">10<\/span><span class=\"p\">);<\/span>\n<span class=\"kd\">const<\/span> <span class=\"nx\">result<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">filteredValues<\/span><span class=\"p\">.<\/span><span class=\"nf\">reduce<\/span><span class=\"p\">((<\/span><span class=\"nx\">sum<\/span><span class=\"p\">,<\/span> <span class=\"nx\">val<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">sum<\/span> <span class=\"o\">+<\/span> <span class=\"nx\">val<\/span><span class=\"p\">,<\/span> <span class=\"mi\">0<\/span><span class=\"p\">);<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"%D9%86%D8%AA%DB%8C%D8%AC%D9%87\"><\/span>\n<p>  \u0646\u062a\u06cc\u062c\u0647<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0639\u0644\u06cc\u0631\u063a\u0645 \u0639\u0646\u0648\u0627\u0646 \u0632\u0628\u0627\u0646\u06cc \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647\u060c \u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646 \u06cc\u06a9 \u0648\u06cc\u0698\u06af\u06cc \u0642\u062f\u0631\u062a\u0645\u0646\u062f \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0647\u0633\u062a\u0646\u062f \u06a9\u0647 \u0645\u0632\u0627\u06cc\u0627\u06cc \u0645\u062a\u0639\u062f\u062f\u06cc \u0627\u0632 \u062c\u0645\u0644\u0647 \u0645\u062d\u062f\u0648\u062f\u0647 \u0648\u0627\u0698\u06af\u0627\u0646\u06cc <code>this<\/code>\u060c \u0646\u062d\u0648 \u0645\u062e\u062a\u0635\u0631 \u0648 \u0628\u0627\u0632\u062f\u0647 \u0636\u0645\u0646\u06cc.  \u0622\u0646\u0647\u0627 \u0628\u0631\u0627\u06cc \u0631\u0648\u0634 \u0647\u0627\u06cc \u0622\u0631\u0627\u06cc\u0647\u060c \u0634\u0646\u0648\u0646\u062f\u06af\u0627\u0646 \u0631\u0648\u06cc\u062f\u0627\u062f \u0648 \u0645\u062f\u06cc\u0631\u06cc\u062a \u0648\u0639\u062f\u0647 \u0647\u0627 \u0645\u0641\u06cc\u062f \u0647\u0633\u062a\u0646\u062f.<\/p>\n<p>\u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u062a\u0648\u0633\u0639\u0647 \u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u0628\u0627\u06cc\u062f \u0628\u0647 \u0645\u062d\u062f\u0648\u062f\u06cc\u062a \u0647\u0627\u06cc \u062e\u0648\u062f\u060c \u0645\u0627\u0646\u0646\u062f \u06a9\u0645\u0628\u0648\u062f \u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u0646\u062f<\/p>\n<p>\u0627\u0632 <code>this<\/code> \u0648 <code>arguments<\/code> \u0627\u062a\u0635\u0627\u0644\u0627\u062a \u0648 \u0646\u0627\u0645\u0646\u0627\u0633\u0628 \u0628\u0648\u062f\u0646 \u0622\u0646\u0647\u0627 \u0628\u0631\u0627\u06cc \u0631\u0648\u0634 \u0647\u0627\u06cc \u0634\u06cc  \u0628\u0627 \u062f\u0631\u06a9 \u0632\u0645\u0627\u0646 \u0648 \u0646\u062d\u0648\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u0648\u062b\u0631 \u0627\u0632 \u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0632 \u0645\u0632\u0627\u06cc\u0627\u06cc \u0622\u0646 \u0647\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f \u0648 \u062f\u0631 \u0639\u06cc\u0646 \u062d\u0627\u0644 \u0627\u0632 \u0645\u0634\u06a9\u0644\u0627\u062a \u0627\u062d\u062a\u0645\u0627\u0644\u06cc \u0627\u062c\u062a\u0646\u0627\u0628 \u06a9\u0646\u06cc\u062f.<\/p>\n<p>\u062f\u0631 \u0627\u0635\u0644\u060c \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u0639\u0646\u0648\u0627\u0646 \u062a\u062d\u0631\u06cc\u06a9 \u0622\u0645\u06cc\u0632 &#8220;\u0686\u0631\u0627 \u0646\u0628\u0627\u06cc\u062f \u0627\u0632 \u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646 \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f&#8221; \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u062a\u0648\u062c\u0647 \u0631\u0627 \u0628\u0647 \u062e\u0648\u062f \u062c\u0644\u0628 \u06a9\u0646\u062f\u060c \u0648\u0627\u0642\u0639\u06cc\u062a \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u062a\u0648\u0627\u0628\u0639 \u067e\u06cc\u06a9\u0627\u0646 \u0628\u062e\u0634\u06cc \u0636\u0631\u0648\u0631\u06cc \u0627\u0632 \u062a\u0648\u0633\u0639\u0647 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0645\u062f\u0631\u0646 \u0647\u0633\u062a\u0646\u062f.  \u0622\u0646\u0647\u0627 \u0631\u0627 \u0639\u0627\u0642\u0644\u0627\u0646\u0647 \u062f\u0631 \u0622\u063a\u0648\u0634 \u0628\u06af\u06cc\u0631\u06cc\u062f \u0648 \u062f\u0631 \u0646\u0648\u0634\u062a\u0646 \u06a9\u062f\u0647\u0627\u06cc \u062a\u0645\u06cc\u0632\u060c \u06a9\u0627\u0631\u0622\u0645\u062f \u0648 \u0642\u0627\u0628\u0644 \u0646\u06af\u0647\u062f\u0627\u0631\u06cc \u0628\u0647 \u062e\u0648\u0628\u06cc \u0628\u0647 \u0634\u0645\u0627 \u06a9\u0645\u06a9 \u062e\u0648\u0627\u0647\u0646\u062f \u06a9\u0631\u062f.<\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a\u060c \u0632\u0628\u0627\u0646 \u0648\u0628\u060c \u0627\u0632 \u0632\u0645\u0627\u0646 \u0622\u063a\u0627\u0632 \u0628\u0647 \u06a9\u0627\u0631 \u067e\u06cc\u0634\u0631\u0641\u062a \u0647\u0627\u06cc \u0632\u06cc\u0627\u062f\u06cc \u062f\u0627\u0634\u062a\u0647 \u0627\u0633\u062a. \u06cc\u06a9\u06cc \u0627\u0632 \u0645\u0647\u0645 \u062a\u0631\u06cc\u0646 \u0645\u0648\u0627\u0631\u062f \u0627\u0636\u0627\u0641\u0647 \u0634\u062f\u0647 \u062f\u0631 \u0633\u0627\u0644 \u0647\u0627\u06cc \u0627\u062e\u06cc\u0631\u060c \u062a\u0627\u0628\u0639 \u0641\u0644\u0634 \u0627\u0633\u062a \u06a9\u0647 \u0628\u0627 ES6 (ECMAScript 2015) \u0645\u0639\u0631\u0641\u06cc \u0634\u062f. \u062a\u0648\u0627\u0628\u0639 Arrow \u0634\u06cc\u0648\u0647 \u0646\u0648\u0634\u062a\u0646 \u0648 \u062f\u0631\u06a9 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u062a\u0648\u0633\u0637 \u062a\u0648\u0633\u0639\u0647 \u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u0631\u0627 \u0645\u062a\u062d\u0648\u0644 \u06a9\u0631\u062f\u0647 \u0627\u0633\u062a. \u0639\u0644\u06cc\u0631\u063a\u0645 \u0645\u062d\u0628\u0648\u0628\u06cc\u062a \u0648 \u0645\u0641\u06cc\u062f \u0628\u0648\u062f\u0646 &hellip;<\/p>\n","protected":false},"author":2,"featured_media":64416,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/media.dev.to\/cdn-cgi\/image\/width=1000,height=500,fit=cover,gravity=auto,format=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fwh2vg8uy1bu7mao5erxn.png","fifu_image_alt":"","footnotes":""},"categories":[339],"tags":[],"class_list":["post-64415","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dev"],"_links":{"self":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts\/64415","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/comments?post=64415"}],"version-history":[{"count":0,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts\/64415\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/media\/64416"}],"wp:attachment":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/media?parent=64415"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/categories?post=64415"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/tags?post=64415"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}