{"id":5444,"date":"2023-02-12T11:31:23","date_gmt":"2023-02-12T08:01:23","guid":{"rendered":"https:\/\/nabfollower.com\/blog\/decoding-js-polyfills-and-transpilers-3b87\/"},"modified":"2023-02-12T11:31:23","modified_gmt":"2023-02-12T08:01:23","slug":"decoding-js-polyfills-and-transpilers-3b87","status":"publish","type":"post","link":"https:\/\/nabfollower.com\/blog\/decoding-js-polyfills-and-transpilers-3b87\/","title":{"rendered":"\u0631\u0645\u0632\u06af\u0634\u0627\u06cc\u06cc JS: Polyfills \u0648 Transpilers"},"content":{"rendered":"<div data-article-id=\"1362203\" id=\"article-body\">\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 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/nabfollower.com\/blog\/decoding-js-polyfills-and-transpilers-3b87\/#%D9%BE%D9%84%DB%8C_%D9%BE%D8%B1%D9%87%D8%A7\" >\u067e\u0644\u06cc \u067e\u0631\u0647\u0627<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/nabfollower.com\/blog\/decoding-js-polyfills-and-transpilers-3b87\/#%DA%86%D9%86%D8%AF_%D9%86%D9%85%D9%88%D9%86%D9%87\" >\u0686\u0646\u062f \u0646\u0645\u0648\u0646\u0647<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/nabfollower.com\/blog\/decoding-js-polyfills-and-transpilers-3b87\/#%D8%AA%D8%B1%D8%A7%D9%86%D8%B3%D9%BE%D8%A7%DB%8C%D9%84%D8%B1%D9%87%D8%A7\" >\u062a\u0631\u0627\u0646\u0633\u067e\u0627\u06cc\u0644\u0631\u0647\u0627<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/nabfollower.com\/blog\/decoding-js-polyfills-and-transpilers-3b87\/#TL_DR\" >TL: DR;<\/a><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"%D9%BE%D9%84%DB%8C_%D9%BE%D8%B1%D9%87%D8%A7\"><\/span>\n<p>  \u067e\u0644\u06cc \u067e\u0631\u0647\u0627<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>polyfill \u0642\u0637\u0639\u0647 \u0627\u06cc \u0627\u0632 \u06a9\u062f \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0627\u0633\u062a \u06a9\u0647 \u0628\u0631\u0627\u06cc \u0627\u0631\u0627\u0626\u0647 \u0628\u0631\u062e\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f\u0647\u0627 \u062f\u0631 \u0645\u0631\u0648\u0631\u06af\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f \u06a9\u0647 \u0628\u0647 \u0635\u0648\u0631\u062a \u0628\u0648\u0645\u06cc \u0627\u0632 \u0622\u0646 \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u0646\u0645\u06cc \u06a9\u0646\u062f.  \u0622\u0646\u0647\u0627 \u0628\u0631\u0627\u06cc \u062a\u06a9\u0631\u0627\u0631 \u06cc\u06a9 API \u06a9\u0647 \u062f\u0631 \u0628\u0631\u062e\u06cc \u0627\u0632 \u0645\u0631\u0648\u0631\u06af\u0631\u0647\u0627 \u0645\u0648\u062c\u0648\u062f \u0627\u0633\u062a\u060c \u0628\u0631\u0627\u06cc \u06a9\u0633\u0627\u0646\u06cc \u06a9\u0647 \u0622\u0646 \u0631\u0627 \u0646\u062f\u0627\u0631\u0646\u062f \u06cc\u0627 \u0628\u0647 \u0637\u0648\u0631 \u06a9\u0627\u0645\u0644 \u06a9\u0627\u0631 \u0646\u0645\u06cc \u06a9\u0646\u0646\u062f\u060c \u0646\u0648\u0634\u062a\u0647 \u0634\u062f\u0647 \u0627\u0646\u062f.<\/p>\n<p>\u06af\u0627\u0647\u06cc \u0627\u0648\u0642\u0627\u062a\u060c \u0622\u0646\u0647\u0627 \u0647\u0645\u0686\u0646\u06cc\u0646 \u0628\u0631\u0627\u06cc \u062d\u0644 \u0645\u0634\u06a9\u0644 \u0645\u0631\u0648\u0631\u06af\u0631\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f \u06a9\u0647 \u06cc\u06a9 \u0648\u06cc\u0698\u06af\u06cc \u0631\u0627 \u0628\u0647 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u067e\u06cc\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f \u0648 \u0628\u0647 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0631\u0627\u0647\u06cc \u0645\u0637\u0627\u0628\u0642 \u0628\u0627 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f \u0628\u0631\u0627\u06cc \u062f\u0633\u062a\u0631\u0633\u06cc \u0628\u0647 \u0648\u06cc\u0698\u06af\u06cc \u0645\u06cc\u200c\u062f\u0647\u0646\u062f &#8211; \u0627\u06cc\u0646 \u062f\u0644\u06cc\u0644 \u0628\u0631\u0627\u06cc poly-filling \u062f\u0631 \u0631\u0648\u0632\u0647\u0627\u06cc \u0642\u062f\u06cc\u0645\u06cc IE6 \u0648 Netscape \u0631\u0627\u06cc\u062c \u0628\u0648\u062f\u060c \u062c\u0627\u06cc\u06cc \u06a9\u0647 \u0647\u0631 \u0645\u0631\u0648\u0631\u06af\u0631 \u0628\u0631\u0627\u06cc \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u0628\u0647 \u0637\u0648\u0631 \u0645\u062a\u0641\u0627\u0648\u062a \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f.<\/p>\n<p>\u0628\u0647 \u0632\u0628\u0627\u0646 \u0633\u0627\u062f\u0647\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u067e\u0644\u06cc\u200c\u0641\u06cc\u0644 \u0631\u0627 \u0628\u0647\u200c\u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 \u062e\u0645\u06cc\u0631 \u0645\u0639\u0645\u0648\u0644\u06cc \u062a\u0635\u0648\u0631 \u06a9\u0631\u062f \u06a9\u0647 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0628\u0631\u0627\u06cc \u067e\u0631 \u06a9\u0631\u062f\u0646 \u0633\u0648\u0631\u0627\u062e\u200c\u0647\u0627 \u0648 \u062a\u0631\u06a9\u200c\u0647\u0627 \u0628\u0631\u0627\u06cc \u0635\u0627\u0641 \u06a9\u0631\u062f\u0646 \u0647\u0631 \u06af\u0648\u0646\u0647 \u0646\u0642\u0635 \u062f\u0631 \u062f\u06cc\u0648\u0627\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u0648\u062f.  \u062f\u0631 \u0627\u0646\u06af\u0644\u0633\u062a\u0627\u0646 \u06cc\u06a9 \u0646\u0627\u0645 \u062a\u062c\u0627\u0631\u06cc \u0645\u062d\u0628\u0648\u0628 \u0628\u0631\u0627\u06cc \u0627\u06cc\u0646 \u062e\u0645\u06cc\u0631 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u06a9\u0647 \u0628\u0647 \u0622\u0646 \u0645\u06cc \u06af\u0648\u06cc\u0646\u062f <strong>&#8220;\u067e\u0644\u06cc \u0641\u06cc\u0644\u0627&#8221;.<\/strong> \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a Polyfill \u0647\u0645\u0627\u0646 \u0628\u062e\u0634 \u0627\u0632 \u0639\u0645\u0644\u06a9\u0631\u062f\u0647\u0627\u06cc \u06af\u0645\u0634\u062f\u0647 \u0631\u0627 \u062f\u0631 \u0645\u0631\u0648\u0631\u06af\u0631\u0647\u0627 \u067e\u0631 \u0645\u06cc \u06a9\u0646\u062f.  \u0686\u06cc\u0632\u0647\u0627\u06cc \u062c\u0627\u0644\u0628!<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%DA%86%D9%86%D8%AF_%D9%86%D9%85%D9%88%D9%86%D9%87\"><\/span>\n<p>  \u0686\u0646\u062f \u0646\u0645\u0648\u0646\u0647<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc \u0632\u0628\u0627\u0646 \u0645\u062f\u0631\u0646\u060c \u0646\u0647 \u062a\u0646\u0647\u0627 \u0634\u0627\u0645\u0644 \u0639\u0645\u0644\u06af\u0631\u0647\u0627 \u06cc\u0627 \u0633\u0627\u062e\u062a\u0627\u0631\u0647\u0627\u06cc \u0646\u062d\u0648\u06cc\u060c \u0628\u0644\u06a9\u0647 \u062a\u0648\u0627\u0628\u0639 \u06cc\u0627 \u0631\u0648\u0634 \u0647\u0627 \u0646\u06cc\u0632 \u0645\u06cc \u0634\u0648\u062f.  \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f <code>String.prototype.startsWith()<\/code> \u0631\u0648\u0634 &#8211; \u0628\u0631\u0627\u06cc \u062a\u0639\u06cc\u06cc\u0646 \u0627\u06cc\u0646\u06a9\u0647 \u0622\u06cc\u0627 \u06cc\u06a9 \u0631\u0634\u062a\u0647 \u0628\u0627 \u06a9\u0627\u0631\u0627\u06a9\u062a\u0631\u0647\u0627\u06cc \u06cc\u06a9 \u0631\u0634\u062a\u0647 \u0645\u0634\u062e\u0635 \u0634\u0631\u0648\u0639 \u0645\u06cc \u0634\u0648\u062f \u06cc\u0627 \u062e\u06cc\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f <code>true<\/code> \u06cc\u0627 <code>false<\/code> \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u0646\u0627\u0633\u0628.  \u0645\u062b\u0627\u0644 &#8211;<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"c1\">\/\/ startsWith(searchString)<\/span>\n<span class=\"c1\">\/\/ startsWith(searchString, position)<\/span>\n<span class=\"kd\">const<\/span> <span class=\"nx\">myString<\/span> <span class=\"o\">=<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">I am learning polyfill<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\n\n<span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">myString<\/span><span class=\"p\">.<\/span><span class=\"nx\">startsWith<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">I am<\/span><span class=\"dl\">'<\/span><span class=\"p\">));<\/span>\n<span class=\"c1\">\/\/ Expected output: true<\/span>\n<span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">myString<\/span><span class=\"p\">.<\/span><span class=\"nx\">startsWith<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">hello<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"mi\">3<\/span><span class=\"p\">));<\/span>\n<span class=\"c1\">\/\/ Expected output: false<\/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\u06af\u0648\u06cc\u06cc\u0645 \u06a9\u0647 \u06cc\u06a9 \u0645\u0631\u0648\u0631\u06af\u0631 \u0641\u0648\u0642 \u0642\u062f\u06cc\u0645\u06cc \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u06a9\u0647 \u0627\u0632 \u0627\u06cc\u0646 \u0631\u0648\u0634 \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u0646\u0645\u06cc\u200c\u06a9\u0646\u062f \u0648 \u0622\u0646\u0637\u0648\u0631 \u06a9\u0647 \u0627\u0646\u062a\u0638\u0627\u0631 \u0645\u06cc\u200c\u0631\u0648\u062f \u062f\u0631 \u0627\u06cc\u0646 \u0645\u0631\u0648\u0631\u06af\u0631 \u0639\u0645\u0644 \u0646\u0645\u06cc\u200c\u06a9\u0646\u062f &#8211; \u0628\u0631\u0627\u06cc \u062c\u0628\u0631\u0627\u0646 \u0622\u0646\u060c \u0628\u0627\u06cc\u062f \u06cc\u06a9 polyfill \u0628\u0631\u0627\u06cc \u0627\u06cc\u0646 \u0631\u0648\u0634 \u0628\u0646\u0648\u06cc\u0633\u06cc\u0645.  \u0686\u06cc\u0632\u06cc \u0634\u0628\u06cc\u0647 \u0628\u0647 \u0627\u06cc\u0646 \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f &#8211;<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"c1\">\/\/ If the method doesn't exist - <\/span>\n<span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"o\">!<\/span><span class=\"nb\">String<\/span><span class=\"p\">.<\/span><span class=\"nx\">prototype<\/span><span class=\"p\">.<\/span><span class=\"nx\">startsWith<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\n\n <span class=\"c1\">\/\/ Use a function that takes the same params, with position defaulting to 0 if not supplied and perform the same functionality as the original method, using the substr method.<\/span>\n\n <span class=\"nb\">String<\/span><span class=\"p\">.<\/span><span class=\"nx\">prototype<\/span><span class=\"p\">.<\/span><span class=\"nx\">startsWith<\/span> <span class=\"o\">=<\/span> <span class=\"kd\">function<\/span> <span class=\"p\">(<\/span><span class=\"nx\">searchString<\/span><span class=\"p\">,<\/span> <span class=\"nx\">position<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\n    <span class=\"nx\">position<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">position<\/span> <span class=\"o\">||<\/span> <span class=\"mi\">0<\/span><span class=\"p\">;<\/span>\n    <span class=\"k\">return<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">substr<\/span><span class=\"p\">(<\/span><span class=\"nx\">position<\/span><span class=\"p\">,<\/span> <span class=\"nx\">searchString<\/span><span class=\"p\">.<\/span><span class=\"nx\">length<\/span><span class=\"p\">)<\/span> <span class=\"o\">===<\/span> <span class=\"nx\">searchString<\/span><span class=\"p\">;<\/span>\n  <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>\u0628\u06cc\u0627\u06cc\u06cc\u062f \u0645\u062b\u0627\u0644 \u062f\u06cc\u06af\u0631\u06cc \u0628\u0632\u0646\u06cc\u0645 &#8211;<\/p>\n<p><code>Math.trunc(n)<\/code>  \u062a\u0627\u0628\u0639\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0628\u062e\u0634 \u0627\u0639\u0634\u0627\u0631\u06cc \u06cc\u06a9 \u0639\u062f\u062f \u0631\u0627 &#8220;\u0642\u0637\u0639&#8221; \u0645\u06cc \u06a9\u0646\u062f\u060c \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644 <code>Math.trunc(1.11)<\/code> \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f <code>1<\/code>.<\/p>\n<p>\u0627\u06af\u0631 \u0627\u06cc\u0646 \u0639\u0645\u0644\u06a9\u0631\u062f \u062f\u0631 \u0628\u0631\u062e\u06cc \u0627\u0632 \u0645\u0631\u0648\u0631\u06af\u0631\u0647\u0627 \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u0646\u0645\u06cc \u0634\u0648\u062f\u060c \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0627\u06cc\u0646 \u0639\u0645\u0644\u06a9\u0631\u062f \u062f\u0631 \u0622\u0646\u062c\u0627 \u062e\u0631\u0627\u0628 \u0634\u0648\u062f.<\/p>\n<p>\u06cc\u06a9 \u067e\u0644\u06cc \u067e\u0631 \u0628\u0631\u0627\u06cc \u0622\u0646 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0634\u0628\u06cc\u0647 \u0628\u0647 \u0627\u06cc\u0646 \u0628\u0627\u0634\u062f &#8211;<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"o\">!<\/span><span class=\"nb\">Math<\/span><span class=\"p\">.<\/span><span class=\"nx\">trunc<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span> <span class=\"c1\">\/\/ if no such function implement it<\/span>\n    <span class=\"nb\">Math<\/span><span class=\"p\">.<\/span><span class=\"nx\">trunc<\/span> <span class=\"o\">=<\/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=\"c1\">\/\/ Use the Math.ceil and Math.floor methods supported in legacy browsers to implement it<\/span>\n    <span class=\"k\">return<\/span> <span class=\"nx\">number<\/span> <span class=\"o\">&lt;<\/span> <span class=\"mi\">0<\/span> <span class=\"p\">?<\/span> <span class=\"nb\">Math<\/span><span class=\"p\">.<\/span><span class=\"nx\">ceil<\/span><span class=\"p\">(<\/span><span class=\"nx\">number<\/span><span class=\"p\">)<\/span> <span class=\"p\">:<\/span> <span class=\"nb\">Math<\/span><span class=\"p\">.<\/span><span class=\"nx\">floor<\/span><span class=\"p\">(<\/span><span class=\"nx\">number<\/span><span class=\"p\">);<\/span>\n  <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>\u0627\u06cc\u0646 <code>Number.isNaN<\/code> \u0648\u06cc\u0698\u06af\u06cc \u0642\u0628\u0644\u06cc \u062f\u0631 \u0686\u0646\u062f\u06cc\u0646 \u0645\u0631\u0648\u0631\u06af\u0631 \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u0645\u062d\u062f\u0648\u062f\u06cc \u062f\u0627\u0634\u062a.  \u06cc\u06a9 \u067e\u0644\u06cc \u067e\u0631 \u0645\u062d\u0628\u0648\u0628 \u0628\u0631\u0627\u06cc \u0622\u0646 \u0628\u0647 \u0646\u0638\u0631 \u0645\u06cc \u0631\u0633\u062f &#8211;<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"c1\">\/\/ NaN !== NaN returns a true, and hence this logic and exception :) <\/span>\n<span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"o\">!<\/span><span class=\"nb\">Number<\/span><span class=\"p\">.<\/span><span class=\"nb\">isNaN<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\n    <span class=\"nb\">Number<\/span><span class=\"p\">.<\/span><span class=\"nb\">isNaN<\/span> <span class=\"o\">=<\/span> <span class=\"kd\">function<\/span> <span class=\"nb\">isNaN<\/span><span class=\"p\">(<\/span><span class=\"nx\">x<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"nx\">x<\/span> <span class=\"o\">!==<\/span> <span class=\"nx\">x<\/span><span class=\"p\">;<\/span>\n    <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>\u0647\u0645\u0686\u0646\u06cc\u0646\u060c \u0628\u0647 \u06cc\u0627\u062f \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f &#8211; <strong><em>\u0647\u0645\u0647 \u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc \u062c\u062f\u06cc\u062f \u0628\u0647 \u0637\u0648\u0631 \u06a9\u0627\u0645\u0644 \u0642\u0627\u0628\u0644 \u0686\u0646\u062f\u067e\u0631 \u06a9\u0631\u062f\u0646 \u0646\u06cc\u0633\u062a\u0646\u062f<\/em><\/strong>.  \u06af\u0627\u0647\u06cc \u0627\u0648\u0642\u0627\u062a \u0628\u06cc\u0634\u062a\u0631 \u0631\u0641\u062a\u0627\u0631\u0647\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u0686\u0646\u062f \u067e\u0631 \u0634\u0648\u0646\u062f\u060c \u0627\u0645\u0627 \u0647\u0646\u0648\u0632 \u0627\u0646\u062d\u0631\u0627\u0641\u0627\u062a \u06a9\u0648\u0686\u06a9\u06cc \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f.  \u0634\u0645\u0627 \u0628\u0627\u06cc\u062f \u0648\u0627\u0642\u0639\u0627\u064b \u062f\u0631 \u0627\u062c\u0631\u0627\u06cc \u067e\u0644\u06cc \u0641\u06cc\u0644 \u062e\u0648\u062f \u062f\u0642\u062a \u06a9\u0646\u06cc\u062f\u060c \u0645\u0637\u0645\u0626\u0646 \u0634\u0648\u06cc\u062f \u06a9\u0647 \u062a\u0627 \u062d\u062f \u0627\u0645\u06a9\u0627\u0646 \u0628\u0647 \u0645\u0634\u062e\u0635\u0627\u062a \u062f\u0642\u06cc\u0642 \u067e\u0627\u06cc\u0628\u0646\u062f \u0647\u0633\u062a\u06cc\u062f.  \u06cc\u0627 \u0628\u0647\u062a\u0631 \u0627\u0632 \u0622\u0646\u060c \u0627\u0632 \u0645\u062c\u0645\u0648\u0639\u0647 \u067e\u0644\u06cc\u200c\u0641\u06cc\u0644\u200c\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u0642\u0628\u0644\u0627\u064b \u0628\u0631\u0631\u0633\u06cc \u0634\u062f\u0647\u200c\u0627\u0646\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f\u060c \u0645\u0627\u0646\u0646\u062f \u0645\u0648\u0627\u0631\u062f\u06cc \u06a9\u0647 \u062a\u0648\u0633\u0637 \u0622\u0646\u200c\u0647\u0627 \u0627\u0631\u0627\u0626\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a <code>ES5-Shim<\/code> \u0648 <code>ES6-Shim<\/code>.<\/p>\n<p>\u0628\u0633\u062a\u0647 \u0647\u0627\u06cc\u06cc \u0645\u0627\u0646\u0646\u062f Core-js \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u06a9\u0645\u06a9 \u06a9\u0646\u0646\u062f.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%D8%AA%D8%B1%D8%A7%D9%86%D8%B3%D9%BE%D8%A7%DB%8C%D9%84%D8%B1%D9%87%D8%A7\"><\/span>\n<p>  \u062a\u0631\u0627\u0646\u0633\u067e\u0627\u06cc\u0644\u0631\u0647\u0627<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u062a\u0631\u0627\u0646\u0633\u067e\u0627\u06cc\u0644\u0631 \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631\u06cc \u0627\u0633\u062a \u06a9\u0647 \u06cc\u06a9 \u06a9\u062f \u0631\u0627 \u0628\u0647 \u062f\u06cc\u06af\u0631\u06cc \u062a\u0631\u062c\u0645\u0647 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<p>\u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u06a9\u062f \u0645\u0646\u0628\u0639 \u0645\u062f\u0631\u0646 \u0631\u0627 \u0628\u062e\u0648\u0627\u0646\u062f \u0648 \u0622\u0646 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0645\u0648\u062a\u0648\u0631\u0647\u0627\u06cc \u0645\u0631\u0648\u0631\u06af\u0631 \u0642\u062f\u06cc\u0645\u06cc \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0633\u0627\u062e\u062a\u0627\u0631\u0647\u0627\u06cc \u0646\u062d\u0648\u06cc \u0642\u062f\u06cc\u0645\u06cc \u0628\u0627\u0632\u0646\u0648\u06cc\u0633\u06cc \u06a9\u0646\u062f.<\/p>\n<p>\u06cc\u06a9 \u0645\u062b\u0627\u0644 \u0645\u062d\u0628\u0648\u0628 \u0627\u0633\u062a <code>nullish coalescing operator (??)<\/code>\u060c \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0642\u0628\u0644 \u0627\u0632 \u0633\u0627\u0644 2020 \u0627\u06cc\u0646 \u0627\u067e\u0631\u0627\u062a\u0648\u0631 \u0631\u0627 \u0646\u062f\u0627\u0634\u062a\u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0645\u0648\u062a\u0648\u0631\u0647\u0627\u06cc \u0645\u0631\u0648\u0631\u06af\u0631 \u0642\u062f\u06cc\u0645\u06cc \u062a\u0631 \u0686\u06cc\u0632\u06cc \u0634\u0628\u06cc\u0647 \u0628\u0647 <code>name = name ?? \"No name\"<\/code> .<\/p>\n<p>\u06cc\u06a9 \u062a\u0631\u0627\u0646\u0633\u067e\u0627\u06cc\u0644\u0631 \u0627\u06cc\u0646 \u0631\u0627 \u0645\u06cc \u0641\u0647\u0645\u062f \u0648 \u0622\u0646 \u0631\u0627 \u0628\u0627\u0632\u0646\u0648\u06cc\u0633\u06cc \u0645\u06cc \u06a9\u0646\u062f &#8211;<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"c1\">\/\/ before transpiling<\/span>\n<span class=\"nx\">name<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">name<\/span> <span class=\"o\">??<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">No name<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\n\n<span class=\"c1\">\/\/ after transpiling<\/span>\n<span class=\"nx\">name<\/span> <span class=\"o\">=<\/span> <span class=\"p\">(<\/span><span class=\"nx\">name<\/span> <span class=\"o\">!==<\/span> <span class=\"kc\">undefined<\/span> <span class=\"o\">&amp;&amp;<\/span> <span class=\"nx\">name<\/span> <span class=\"o\">!==<\/span> <span class=\"kc\">null<\/span><span class=\"p\">)<\/span> <span class=\"p\">?<\/span> <span class=\"nx\">name<\/span> <span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">No Name<\/span><span class=\"dl\">\"<\/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 \u06a9\u062f \u062a\u0648\u0633\u0637 \u0645\u0631\u0648\u0631\u06af\u0631\u0647\u0627\u06cc \u0642\u062f\u06cc\u0645\u06cc \u0642\u0627\u0628\u0644 \u062f\u0631\u06a9 \u0627\u0633\u062a.<\/p>\n<p>\u062a\u0648\u0633\u0639\u0647 \u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u062a\u0631\u0627\u0646\u0633\u067e\u0627\u06cc\u0644\u0631 \u0631\u0627 \u0631\u0648\u06cc \u0631\u0627\u06cc\u0627\u0646\u0647 \u062e\u0648\u062f \u0627\u062c\u0631\u0627 \u0645\u06cc \u06a9\u0646\u0646\u062f \u0648 \u0627\u06cc\u0646 \u06a9\u062f \u0631\u0627 \u062f\u0631 \u0633\u0631\u0648\u0631\u0647\u0627 \u0645\u0633\u062a\u0642\u0631 \u0645\u06cc \u06a9\u0646\u0646\u062f.  \u0628\u0631\u062e\u06cc \u0627\u0632 \u062a\u0631\u0627\u0646\u0633\u067e\u0627\u06cc\u0644\u0631\u0647\u0627\u06cc \u0645\u062d\u0628\u0648\u0628 \u0639\u0628\u0627\u0631\u062a\u0646\u062f \u0627\u0632 &#8211; Babel.<\/p>\n<p>\u0633\u0627\u062e\u062a\u0646 \u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627 \u06cc\u0627 \u0628\u0627\u0646\u062f\u0644\u0631\u0647\u0627\u06cc\u06cc \u0645\u0627\u0646\u0646\u062f \u0628\u0633\u062a\u0647 \u0648\u0628\u060c \u0627\u0628\u0632\u0627\u0631\u06cc \u0628\u0631\u0627\u06cc \u0627\u062c\u0631\u0627\u06cc \u062e\u0648\u062f\u06a9\u0627\u0631 \u062a\u0631\u0627\u0646\u0633\u067e\u0627\u06cc\u0644\u0631 \u062f\u0631 \u0647\u0631 \u062a\u063a\u06cc\u06cc\u0631 \u06a9\u062f \u0641\u0631\u0627\u0647\u0645 \u0645\u06cc\u200c\u06a9\u0646\u062f.  \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646\u060c \u0622\u0646\u0647\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u062f\u0631 \u0641\u0631\u0622\u06cc\u0646\u062f\u0647\u0627\u06cc \u062a\u0648\u0633\u0639\u0647 \u0627\u062f\u063a\u0627\u0645 \u0634\u0648\u0646\u062f.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"TL_DR\"><\/span>\n<p>  TL: DR;<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0628\u0627 \u0631\u0648\u0634 \u0647\u0627\u06cc\u06cc \u0628\u0631\u0627\u06cc \u067e\u0631 \u06a9\u0631\u062f\u0646 \u062d\u0641\u0631\u0647 \u0647\u0627\u06cc \u0646\u062d\u0648\u06cc \u06cc\u0627 \u0639\u0645\u0644\u06a9\u0631\u062f\u06cc \u0627\u0632 \u062f\u0633\u062a \u0631\u0641\u062a\u0647 \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0622\u0634\u0646\u0627 \u0634\u062f\u06cc\u0645.  \u067e\u0644\u06cc\u200c\u0641\u06cc\u0644\u200c\u0647\u0627 \u0631\u0627\u0647\u06cc \u0628\u0631\u0627\u06cc \u067e\u0631 \u06a9\u0631\u062f\u0646 \u062d\u0641\u0631\u0647\u200c\u0647\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc \u0641\u0631\u0627\u0647\u0645 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f.  \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0634\u0645\u0627 \u0631\u0627\u0647\u06cc \u0628\u0631\u0627\u06cc \u067e\u0631 \u06a9\u0631\u062f\u0646 \u0622\u0646 \u062c\u062f\u06cc\u062f \u062f\u0627\u0631\u06cc\u062f <strong><em>\u0628\u0631\u0627\u0642\u060c \u0634\u0639\u0644\u0647 \u0648\u0631 \u0633\u0631\u06cc\u0639<\/em><\/strong>  \u0642\u0627\u0628\u0644\u06cc\u062a \u062f\u0631 \u0645\u0631\u0648\u0631\u06af\u0631\u0647\u0627\u06cc \u0642\u062f\u06cc\u0645\u06cc \u0634\u0645\u0627.<\/p>\n<p>\u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u067e\u0631 \u06a9\u0631\u062f\u0646 \u0634\u06a9\u0627\u0641 \u0647\u0627\u06cc \u0646\u062d\u0648\u06cc \u062f\u0634\u0648\u0627\u0631 \u0627\u0633\u062a\u060c \u0632\u06cc\u0631\u0627 \u0622\u0646\u0647\u0627 \u0641\u0642\u0637 \u0646\u0645\u0627\u062f\u0647\u0627\u06cc\u06cc \u063a\u06cc\u0631\u0642\u0627\u0628\u0644 \u062a\u0634\u062e\u06cc\u0635 \u0628\u0631\u0627\u06cc \u0645\u0648\u062a\u0648\u0631\u0647\u0627\u06cc \u0642\u062f\u06cc\u0645\u06cc \u0647\u0633\u062a\u0646\u062f.  \u062a\u0631\u0627\u0646\u0633\u067e\u0627\u06cc\u0644\u0631\u0647\u0627 \u0631\u0627\u0647\u06cc \u0631\u0627 \u0628\u0631\u0627\u06cc \u067e\u0631 \u06a9\u0631\u062f\u0646 \u0622\u0646 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u062f\u0647\u0646\u062f.<\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u067e\u0644\u06cc \u067e\u0631\u0647\u0627 polyfill \u0642\u0637\u0639\u0647 \u0627\u06cc \u0627\u0632 \u06a9\u062f \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0627\u0633\u062a \u06a9\u0647 \u0628\u0631\u0627\u06cc \u0627\u0631\u0627\u0626\u0647 \u0628\u0631\u062e\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f\u0647\u0627 \u062f\u0631 \u0645\u0631\u0648\u0631\u06af\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f \u06a9\u0647 \u0628\u0647 \u0635\u0648\u0631\u062a \u0628\u0648\u0645\u06cc \u0627\u0632 \u0622\u0646 \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u0646\u0645\u06cc \u06a9\u0646\u062f. \u0622\u0646\u0647\u0627 \u0628\u0631\u0627\u06cc \u062a\u06a9\u0631\u0627\u0631 \u06cc\u06a9 API \u06a9\u0647 \u062f\u0631 \u0628\u0631\u062e\u06cc \u0627\u0632 \u0645\u0631\u0648\u0631\u06af\u0631\u0647\u0627 \u0645\u0648\u062c\u0648\u062f \u0627\u0633\u062a\u060c \u0628\u0631\u0627\u06cc \u06a9\u0633\u0627\u0646\u06cc \u06a9\u0647 \u0622\u0646 \u0631\u0627 \u0646\u062f\u0627\u0631\u0646\u062f \u06cc\u0627 \u0628\u0647 \u0637\u0648\u0631 \u06a9\u0627\u0645\u0644 \u06a9\u0627\u0631 \u0646\u0645\u06cc \u06a9\u0646\u0646\u062f\u060c &hellip;<\/p>\n","protected":false},"author":2,"featured_media":5445,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[339],"tags":[],"class_list":["post-5444","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\/5444","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=5444"}],"version-history":[{"count":0,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts\/5444\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/media\/5445"}],"wp:attachment":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/media?parent=5444"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/categories?post=5444"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/tags?post=5444"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}