{"id":15842,"date":"2024-01-17T21:29:11","date_gmt":"2024-01-17T17:59:11","guid":{"rendered":"https:\/\/rasanegar.com\/blog\/%d8%ac%d8%a7%d9%88%d8%a7-%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be%d8%aa-%d8%af%d8%b1-%d9%85%d9%82%d8%a7%d8%a8%d9%84-%d8%b9%d9%85%d9%84%da%af%d8%b1%d9%87%d8%a7%db%8c-operatorcomparison-%d8%af%d8%b1\/"},"modified":"2024-01-17T21:29:11","modified_gmt":"2024-01-17T17:59:11","slug":"%d8%ac%d8%a7%d9%88%d8%a7-%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be%d8%aa-%d8%af%d8%b1-%d9%85%d9%82%d8%a7%d8%a8%d9%84-%d8%b9%d9%85%d9%84%da%af%d8%b1%d9%87%d8%a7%db%8c-operatorcomparison-%d8%af%d8%b1","status":"publish","type":"post","link":"https:\/\/rasanegaar.com\/blog\/%d8%ac%d8%a7%d9%88%d8%a7-%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be%d8%aa-%d8%af%d8%b1-%d9%85%d9%82%d8%a7%d8%a8%d9%84-%d8%b9%d9%85%d9%84%da%af%d8%b1%d9%87%d8%a7%db%8c-operatorcomparison-%d8%af%d8%b1\/","title":{"rendered":"\u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a: == \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 === \u0639\u0645\u0644\u06af\u0631\u0647\u0627\u06cc OperatorComparison \u062f\u0631 \u0639\u0628\u0627\u0631\u0627\u062a \u0645\u0646\u0637\u0642\u06cc \u0628\u0631\u0627\u06cc \u062a\u0639\u06cc\u06cc\u0646 \u0627\u06cc\u0646\u06a9\u0647 \u0622\u06cc\u0627 \u062f\u0648 \u0645\u062a\u063a\u06cc\u0631 \u06cc\u0627 \u0634\u06cc \u0628\u0627 \u0628\u0631\u062e\u06cc \u0627\u0632 \u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc \u062a\u0639\u06cc\u06cc\u0646 \u0634\u062f\u0647 \u06cc\u0627 \u0633\u0641\u0627\u0631\u0634\u06cc \u062a\u0639\u0631\u06cc\u0641 \u0634\u062f\u0647 \u0628\u0631\u0627\u0628\u0631 \u0647\u0633\u062a\u0646\u062f \u06cc\u0627 \u062e\u06cc\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f.  \u0627\u06af\u0631 \u062f\u0648 \u0645\u062a\u063a\u06cc\u0631 \u06cc\u0627 \u0634\u06cc \u0628\u0631\u0627\u0628\u0631 \u0627\u0633\u062a\u0646\u0628\u0627\u0637 \u0634\u0648\u0646\u062f\u060c \u0639\u0645\u0644\u06af\u0631 true \u0648 \u0627\u06af\u0631 \u0627\u06cc\u0646\u0637\u0648\u0631 \u0646\u0628\u0627\u0634\u062f false \u0631\u0627 \u0628\u0631\u0645\u06cc\u200c\u06af\u0631\u062f\u0627\u0646\u062f.  \u0639\u0645\u0644\u06af\u0631\u0647\u0627\u06cc \u0645\u0642\u0627\u06cc\u0633\u0647 \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0639\u0628\u0627\u0631\u062a\u0646\u062f \u0627\u0632: &lt;&#8230;"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\"><p class=\"ez-toc-title\" style=\"cursor:inherit\">\u0633\u0631\u0641\u0635\u0644\u0647\u0627\u06cc \u0645\u0637\u0644\u0628<\/p>\n<\/div><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%ac%d8%a7%d9%88%d8%a7-%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be%d8%aa-%d8%af%d8%b1-%d9%85%d9%82%d8%a7%d8%a8%d9%84-%d8%b9%d9%85%d9%84%da%af%d8%b1%d9%87%d8%a7%db%8c-operatorcomparison-%d8%af%d8%b1\/#%d9%85%d8%b9%d8%b1%d9%81%db%8c\" >\u0645\u0639\u0631\u0641\u06cc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%ac%d8%a7%d9%88%d8%a7-%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be%d8%aa-%d8%af%d8%b1-%d9%85%d9%82%d8%a7%d8%a8%d9%84-%d8%b9%d9%85%d9%84%da%af%d8%b1%d9%87%d8%a7%db%8c-operatorcomparison-%d8%af%d8%b1\/#loose_equality_operator_%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%aa\" >Loose Equality Operator \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a (==)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%ac%d8%a7%d9%88%d8%a7-%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be%d8%aa-%d8%af%d8%b1-%d9%85%d9%82%d8%a7%d8%a8%d9%84-%d8%b9%d9%85%d9%84%da%af%d8%b1%d9%87%d8%a7%db%8c-operatorcomparison-%d8%af%d8%b1\/#%d9%85%d9%82%d8%a7%db%8c%d8%b3%d9%87_%d9%85%d9%82%d8%a7%d8%af%db%8c%d8%b1_%d9%86%d8%a7%d8%af%d8%b1%d8%b3%d8%aa_%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%aa\" >\u0645\u0642\u0627\u06cc\u0633\u0647 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0646\u0627\u062f\u0631\u0633\u062a \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%ac%d8%a7%d9%88%d8%a7-%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be%d8%aa-%d8%af%d8%b1-%d9%85%d9%82%d8%a7%d8%a8%d9%84-%d8%b9%d9%85%d9%84%da%af%d8%b1%d9%87%d8%a7%db%8c-operatorcomparison-%d8%af%d8%b1\/#%d8%a7%d9%be%d8%b1%d8%a7%d8%aa%d9%88%d8%b1_%d8%a8%d8%b1%d8%a7%d8%a8%d8%b1%db%8c_%d8%af%d9%82%db%8c%d9%82_%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%aa\" >\u0627\u067e\u0631\u0627\u062a\u0648\u0631 \u0628\u0631\u0627\u0628\u0631\u06cc \u062f\u0642\u06cc\u0642 \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a (===)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%ac%d8%a7%d9%88%d8%a7-%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be%d8%aa-%d8%af%d8%b1-%d9%85%d9%82%d8%a7%d8%a8%d9%84-%d8%b9%d9%85%d9%84%da%af%d8%b1%d9%87%d8%a7%db%8c-operatorcomparison-%d8%af%d8%b1\/#%d9%86%d8%aa%db%8c%d8%ac%d9%87\" >\u0646\u062a\u06cc\u062c\u0647<\/a><\/li><\/ul><\/nav><\/div>\n<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">\u0632\u0645\u0627\u0646 \u0644\u0627\u0632\u0645 \u0628\u0631\u0627\u06cc \u0645\u0637\u0627\u0644\u0639\u0647: <\/span> <span class=\"rt-time\"> 5<\/span> <span class=\"rt-label rt-postfix\">\u062f\u0642\u06cc\u0642\u0647<\/span><\/span><p> <br \/>\n<\/p>\n<div class=\"content\"><noscript><\/p>\n<style>.lazyload-placeholder { display: none;  }<\/style>\n<p><\/noscript><\/p>\n<h2 id=\"introduction\"><span class=\"ez-toc-section\" id=\"%d9%85%d8%b9%d8%b1%d9%81%db%8c\"><\/span>\u0645\u0639\u0631\u0641\u06cc<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0639\u0645\u0644\u06af\u0631\u0647\u0627\u06cc \u0645\u0642\u0627\u06cc\u0633\u0647 \u062f\u0631 \u0639\u0628\u0627\u0631\u0627\u062a \u0645\u0646\u0637\u0642\u06cc \u0628\u0631\u0627\u06cc \u062a\u0639\u06cc\u06cc\u0646 \u0627\u06cc\u0646\u06a9\u0647 \u0622\u06cc\u0627 \u062f\u0648 \u0645\u062a\u063a\u06cc\u0631 \u06cc\u0627 \u0634\u06cc\u0621 \u0647\u0633\u062a\u0646\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f <em>\u0628\u0631\u0627\u0628\u0631<\/em> \u062a\u0648\u0633\u0637 \u0628\u0631\u062e\u06cc \u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc \u0627\u0632 \u0642\u0628\u0644 \u062a\u0639\u06cc\u06cc\u0646 \u0634\u062f\u0647 \u06cc\u0627 \u062a\u0639\u0631\u06cc\u0641 \u0634\u062f\u0647 \u0633\u0641\u0627\u0631\u0634\u06cc.  \u0627\u06af\u0631 \u062f\u0648 \u0645\u062a\u063a\u06cc\u0631 \u06cc\u0627 \u0634\u06cc\u0621 \u0627\u0633\u062a\u0646\u0628\u0627\u0637 \u0634\u0648\u0646\u062f <em>\u0628\u0631\u0627\u0628\u0631<\/em> \u0627\u067e\u0631\u0627\u062a\u0648\u0631 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u062f <code>true<\/code>\u060c \u0648 <code>false<\/code> \u0627\u06af\u0631 \u0646\u06cc\u0633\u062a\u0646\u062f<\/p>\n<p>\u0639\u0645\u0644\u06af\u0631\u0647\u0627\u06cc \u0645\u0642\u0627\u06cc\u0633\u0647 \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0639\u0628\u0627\u0631\u062a\u0646\u062f \u0627\u0632:<\/p>\n<ul>\n<li><code>&lt;<\/code>  &#8211; \u06a9\u0645\u062a\u0631 \u0627\u0632<\/li>\n<li><code>&gt;<\/code>  &#8211; \u0628\u0632\u0631\u06af\u062a\u0631 \u0627\u0632<\/li>\n<li><code>&lt;=<\/code>  &#8211; \u06a9\u0645\u062a\u0631 \u06cc\u0627 \u0645\u0633\u0627\u0648\u06cc \u0627\u0632<\/li>\n<li><code>&gt;=<\/code>  &#8211; \u0628\u0632\u0631\u06af\u062a\u0631 \u06cc\u0627 \u0645\u0633\u0627\u0648\u06cc \u0627\u0632<\/li>\n<li><code>==<\/code>  \u0648 <code>===<\/code> &#8211; \u0628\u0631\u0627\u0628\u0631 \u0628\u0627 (\u0639\u0645\u0644\u06af\u0631 \u0628\u0631\u0627\u0628\u0631\u06cc \u0633\u0633\u062a \u0648 \u0633\u062e\u062a)<\/li>\n<li><code>!=<\/code>  \u0648 <code>!==<\/code> &#8211; \u0645\u0633\u0627\u0648\u06cc \u0646\u06cc\u0633\u062a (\u0639\u0645\u0644\u06af\u0631 \u0646\u0627\u0628\u0631\u0627\u0628\u0631\u06cc \u0633\u0633\u062a \u0648 \u0633\u062e\u062a)<\/li>\n<\/ul>\n<p>\u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u062c\u0627\u0644\u0628 \u0627\u0633\u062a \u0632\u06cc\u0631\u0627 \u062f\u0648 \u0639\u0645\u0644\u06af\u0631 \u0645\u0642\u0627\u06cc\u0633\u0647 \u0628\u0635\u0631\u06cc \u0628\u0633\u06cc\u0627\u0631 \u0645\u0634\u0627\u0628\u0647 \u062f\u0627\u0631\u062f\u060c \u0627\u0645\u0627 \u062f\u0631 \u0639\u0645\u0644 \u0628\u0631\u0627\u06cc \u0628\u0631\u0627\u0628\u0631\u06cc \u0628\u0633\u06cc\u0627\u0631 \u0645\u062a\u0641\u0627\u0648\u062a \u0627\u0633\u062a: <code>==<\/code> \u0648 <code>===<\/code>.<\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647\u060c \u062a\u0641\u0627\u0648\u062a\u200c\u0647\u0627\u06cc \u0639\u0645\u0644\u06af\u0631\u0647\u0627\u06cc \u0628\u0631\u0627\u0628\u0631\u06cc \u0633\u0633\u062a \u0648 \u0633\u062e\u062a \u0631\u0627 \u062a\u0648\u0636\u06cc\u062d \u0645\u06cc\u200c\u062f\u0647\u06cc\u0645 \u0648 \u0646\u0645\u0648\u0646\u0647\u200c\u0647\u0627\u06cc\u06cc \u0627\u0632 \u06a9\u0627\u0631\u0628\u0631\u062f \u0622\u0646\u0647\u0627 \u0631\u0627 \u0645\u0631\u0648\u0631 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645.<\/p>\n<h2 id=\"looseequalityoperatorinjavascript\"><span class=\"ez-toc-section\" id=\"loose_equality_operator_%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%aa\"><\/span>Loose Equality Operator \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a (==)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u062f\u0648 \u0628\u0631\u0627\u0628\u0631 \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u062f\u0631 \u062d\u0627\u0644 \u0622\u0632\u0645\u0627\u06cc\u0634 \u0647\u0633\u062a\u0646\u062f <em>\u0627\u0632 \u062f\u0633\u062a \u062f\u0627\u062f\u0646 \u0628\u0631\u0627\u0628\u0631\u06cc<\/em>.  \u0627\u06cc\u0646 \u0628\u0647 \u0645\u0648\u062a\u0648\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc\u200c\u062f\u0647\u062f \u062a\u0627 \u0627\u06cc\u0646 \u0639\u0628\u0627\u0631\u0627\u062a \u0631\u0627 \u0628\u0647 \u06cc\u06a9 \u0646\u0648\u0639 \u0645\u0639\u0645\u0648\u0644\u06cc \u0627\u0631\u0633\u0627\u0644 \u06a9\u0646\u062f.  \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0639\u0646\u06cc \u06a9\u0647 \u0644\u0632\u0648\u0645\u0627\u064b \u0646\u06cc\u0627\u0632\u06cc \u0646\u06cc\u0633\u062a \u06a9\u0647 \u0639\u0628\u0627\u0631\u0627\u062a \u0627\u0632 \u06cc\u06a9 \u0646\u0648\u0639 \u0628\u0627\u0634\u0646\u062f.<\/p>\n<p>\u0631\u0627 process \u062a\u0628\u062f\u06cc\u0644 \u06cc\u06a9 \u0645\u0642\u062f\u0627\u0631 \u0627\u0632 \u06cc\u06a9 \u0646\u0648\u0639 \u0628\u0647 \u0646\u0648\u0639 \u062f\u06cc\u06af\u0631 \u0646\u0627\u0645\u06cc\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f <em>\u0646\u0648\u0639 \u0627\u062c\u0628\u0627\u0631<\/em>.  \u0646\u0648\u0639 \u0627\u062c\u0628\u0627\u0631 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0627\u0634\u062f <em>\u0635\u0631\u06cc\u062d<\/em> \u0648 <em>\u0636\u0645\u0646\u06cc<\/em>.<\/p>\n<p>\u0627\u062c\u0628\u0627\u0631 \u0646\u0648\u0639 \u0635\u0631\u06cc\u062d\u060c \u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u0627\u0632 \u0646\u0627\u0645\u0634 \u067e\u06cc\u062f\u0627\u0633\u062a\u060c \u0628\u0647 \u0635\u0631\u0627\u062d\u062a \u062f\u0631 \u06a9\u062f \u062a\u0648\u0633\u0637 \u06cc\u06a9 \u0628\u0631\u0646\u0627\u0645\u0647 \u0646\u0648\u06cc\u0633\u060c \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0631\u0648\u0634 \u0647\u0627\u06cc \u062f\u0627\u062e\u0644\u06cc \u06a9\u0647 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0627\u0646\u062c\u0627\u0645 \u0645\u06cc \u0634\u0648\u062f.<code>Number()<\/code>\u060c <code>String()<\/code>\u060c <code>Boolean()<\/code>&#8230;).<\/p>\n<p>\u0645\u062b\u0644\u0627:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-comment\">\/\/ This would result in x being a number 42<\/span>\n<span class=\"hljs-keyword\">let<\/span> x = <span class=\"hljs-built_in\">Number<\/span>(<span class=\"hljs-string\">\"42\"<\/span>);\n\n<span class=\"hljs-comment\">\/\/ Similarly,this would result in y being cast to the boolean value false <\/span>\n<span class=\"hljs-keyword\">let<\/span> y = <span class=\"hljs-built_in\">Boolean<\/span>(<span class=\"hljs-number\">0<\/span>);\n<\/code><\/pre>\n<p>\u0627\u062c\u0628\u0627\u0631 \u0627\u0632 \u0646\u0648\u0639 \u0636\u0645\u0646\u06cc \u0627\u0633\u062a\u060c \u0631\u0648\u06cc \u0627\u0632 \u0633\u0648\u06cc \u062f\u06cc\u06af\u0631\u060c \u0628\u0647 \u0637\u0648\u0631 \u0636\u0645\u0646\u06cc \u062a\u0648\u0633\u0637 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0627\u0646\u062c\u0627\u0645 \u0645\u06cc \u0634\u0648\u062f.  \u0627\u06cc\u0646 \u0646\u0648\u0639 \u0627\u062c\u0628\u0627\u0631 \u0645\u0639\u0645\u0648\u0644\u0627 \u0632\u0645\u0627\u0646\u06cc \u0627\u0646\u062c\u0627\u0645 \u0645\u06cc \u0634\u0648\u062f \u06a9\u0647 \u0627\u0632 \u0639\u0645\u0644\u06af\u0631\u0647\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u0645 \u0631\u0648\u06cc \u0627\u0646\u0648\u0627\u0639 \u0645\u062e\u062a\u0644\u0641\u060c \u0627\u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0628\u0647 \u0637\u0648\u0631 \u0645\u0646\u0637\u0642\u06cc \u0628\u0627 \u06cc\u06a9\u06cc \u0627\u0632 \u0622\u0646\u0647\u0627 &#8220;\u062a\u0637\u0627\u0628\u0642&#8221; \u06a9\u0631\u062f\u060c \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-comment\">\/\/ x is going to be cast to the string \"1\".<\/span>\n<span class=\"hljs-keyword\">let<\/span> x = <span class=\"hljs-number\">1<\/span> + <span class=\"hljs-string\">\"\"<\/span>; \n<\/code><\/pre>\n<p>\u0628\u0631\u0627\u06cc \u062a\u0648\u0636\u06cc\u062d \u0627\u06cc\u0646 \u0645\u062b\u0627\u0644\u060c \u0627\u062c\u0627\u0632\u0647 \u062f\u0647\u06cc\u062f \u0627\u0632 \u0645\u0646\u0638\u0631 \u0645\u0648\u062a\u0648\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0628\u0647 \u0622\u0646 \u0646\u06af\u0627\u0647 \u06a9\u0646\u06cc\u0645:<\/p>\n<blockquote>\n<p>\u0639\u0628\u0627\u0631\u062a \u0628\u0627\u06cc\u062f \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u0634\u0648\u062f \u0648 \u0628\u0647 \u0622\u0646 \u0627\u062e\u062a\u0635\u0627\u0635 \u062f\u0627\u062f\u0647 \u0634\u0648\u062f <code>x<\/code>.  \u0639\u062f\u062f \u0627\u0648\u0644 \u0627\u0633\u062a <code>1<\/code> \u0648 \u062f\u0627\u0631\u062f <code>+<\/code> \u0627\u067e\u0631\u0627\u062a\u0648\u0631 \u062f\u0631 \u06a9\u0646\u0627\u0631 \u0622\u0646  \u0627\u06cc\u0646 \u0628\u0647 \u0645\u0639\u0646\u0627\u06cc \u062c\u0645\u0639 \u0639\u062f\u062f \u0635\u062d\u06cc\u062d \u0628\u0627 \u0639\u062f\u062f \u0628\u0639\u062f\u06cc \u0627\u0633\u062a.  \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u06cc\u06a9 \u0631\u0634\u062a\u0647 \u062e\u0627\u0644\u06cc \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f\u060c <code>\"\"<\/code>\u060c \u0622\u0646\u062c\u0627.  \u0627\u06cc\u0646 \u0631\u0627 \u0646\u0645\u06cc \u062a\u0648\u0627\u0646 \u0628\u0647 \u0639\u062f\u062f \u062a\u0628\u062f\u06cc\u0644 \u06a9\u0631\u062f.  \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u0645\u0627 \u0647\u0645\u0686\u0646\u06cc\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0631\u0634\u062a\u0647 \u0647\u0627 \u0631\u0627 \u0628\u0647 \u0647\u0645 \u0628\u067e\u06cc\u0648\u0646\u062f\u06cc\u0645 <code>+<\/code>\u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0628\u06cc\u0627\u06cc\u06cc\u062f \u0622\u0646\u0647\u0627 \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0631\u0634\u062a\u0647 \u0647\u0627 \u0645\u0637\u0627\u0628\u0642\u062a \u062f\u0647\u06cc\u0645 \u0648 \u0627\u0644\u062d\u0627\u0642 \u0631\u0627 \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u06cc\u0645.  \u062f\u0631 \u0646\u0647\u0627\u06cc\u062a\u060c \u0646\u062a\u06cc\u062c\u0647 \u0628\u0631\u06af\u0631\u062f\u0627\u0646\u062f\u0647 \u0634\u062f\u0647 \u0648 \u0628\u0647 \u0622\u0646 \u0627\u062e\u062a\u0635\u0627\u0635 \u062f\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f <code>x<\/code>.<\/p>\n<\/blockquote>\n<p>\u0628\u0647 \u0637\u0648\u0631 \u062e\u0644\u0627\u0635\u0647\u060c \u0645\u0648\u062a\u0648\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0633\u0639\u06cc \u0645\u06cc \u06a9\u0646\u062f \u0647\u0631 \u062f\u0648 \u0645\u0642\u062f\u0627\u0631 \u0631\u0627 \u0628\u0647 \u0646\u0648\u0639\u06cc \u062a\u0628\u062f\u06cc\u0644 \u06a9\u0646\u062f \u06a9\u0647 \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u0645\u06cc \u06a9\u0646\u062f<br \/>\n\u0631\u0627 <code>+<\/code> \u0639\u0645\u0644\u06af\u0631 \u06a9\u0647 \u062f\u0631 \u0627\u06cc\u0646 \u0645\u0648\u0631\u062f \u06cc\u06a9 \u0631\u0634\u062a\u0647 \u0627\u0633\u062a.<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-comment\">\/* In this case, the JS engine deduces that both the operands and the result have to be cast to an integer because it's the only type that has a defined subtraction operation (-) *\/<\/span>\n\n<span class=\"hljs-keyword\">let<\/span> y = <span class=\"hljs-string\">\"5\"<\/span> - <span class=\"hljs-string\">\"2\"<\/span>;\n\n<span class=\"hljs-comment\">\/\/ Because booleans don't have a + operation, the JS engine converts both true values into 1's<\/span>\n\n<span class=\"hljs-keyword\">let<\/span> z = <span class=\"hljs-literal\">true<\/span> + <span class=\"hljs-literal\">true<\/span>;\n<\/code><\/pre>\n<p>\u062f\u0631 \u062d\u0627\u0644 \u062d\u0627\u0636\u0631\u060c \u062f\u0642\u06cc\u0642\u0627\u064b \u0627\u06cc\u0646 \u0646\u0648\u0639 \u0627\u062c\u0628\u0627\u0631 \u0627\u0633\u062a <code>==<\/code> \u0627\u067e\u0631\u0627\u062a\u0648\u0631 \u0628\u0631\u0627\u06cc \u0628\u0631\u0631\u0633\u06cc \u0628\u0631\u0627\u0628\u0631\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u062f.  \u0627\u062c\u0627\u0632\u0647 \u062f\u0647\u06cc\u062f \u0686\u0646\u062f \u0646\u0645\u0648\u0646\u0647 \u0627\u0632 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0639\u0645\u0644\u06af\u0631 \u0628\u0631\u0627\u0628\u0631\u06cc \u0636\u0639\u06cc\u0641 \u0631\u0627 \u062f\u0631 Node REPL \u0645\u0631\u0648\u0631 \u06a9\u0646\u06cc\u0645:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-meta\">&gt;<\/span><span class=\"bash\"> 42 == <span class=\"hljs-string\">\"42\"<\/span><\/span>\ntrue\n<span class=\"hljs-meta\">&gt;<\/span><span class=\"bash\"> <span class=\"hljs-string\">\"42\"<\/span> == <span class=\"hljs-string\">'42'<\/span><\/span>\ntrue\n<\/code><\/pre>\n<p><code>42<\/code>\u060c <code>\"42\"<\/code> \u0648 <code>'42'<\/code> \u0647\u0645\u0647 \u0628\u0627 \u06cc\u06a9 \u0646\u0648\u0639 \u062f\u0627\u062f\u0647 \u062a\u0637\u0628\u06cc\u0642 \u062f\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u0646\u062f\u060c \u0648 \u0647\u0645\u0647 \u0628\u0627 \u0647\u0645 \u0628\u0631\u0627\u0628\u0631 \u0647\u0633\u062a\u0646\u062f \u0648 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0646\u062f <code>true<\/code> \u062f\u0631 \u0645\u0642\u0627\u06cc\u0633\u0647 \u0647\u0627<\/p>\n<p>\u0628\u0648\u0644\u06cc \u0647\u0627 \u0627\u0632 \u0647\u0645\u06cc\u0646 \u0627\u0635\u0644 \u067e\u06cc\u0631\u0648\u06cc \u0645\u06cc \u06a9\u0646\u0646\u062f:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-meta\">&gt;<\/span><span class=\"bash\"> <span class=\"hljs-literal\">true<\/span> == 1<\/span>\ntrue\n<span class=\"hljs-meta\">&gt;<\/span><span class=\"bash\"> <span class=\"hljs-literal\">true<\/span> + <span class=\"hljs-literal\">true<\/span> == 2<\/span>\ntrue\n<span class=\"hljs-meta\">&gt;<\/span><span class=\"bash\"> <span class=\"hljs-literal\">false<\/span> == 0<\/span>\ntrue\n<span class=\"hljs-meta\">&gt;<\/span><span class=\"bash\"> <span class=\"hljs-literal\">false<\/span> + <span class=\"hljs-literal\">true<\/span> == 1<\/span>\ntrue\n<\/code><\/pre>\n<p><code>true<\/code>  \u0627\u0633\u062a <code>1<\/code> \u0648 <code>false<\/code> \u0627\u0633\u062a <code>0<\/code>.  \u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0628\u0647 \u0637\u0648\u0631 \u0636\u0645\u0646\u06cc \u0622\u0646\u0647\u0627 \u0631\u0627 \u0628\u0627 \u0627\u0636\u0627\u0641\u0647 \u06a9\u0631\u062f\u0646 \u0622\u0646\u0647\u0627 \u0628\u0647 \u0627\u0639\u062f\u0627\u062f \u0635\u062d\u06cc\u062d \u062a\u0628\u062f\u06cc\u0644 \u06a9\u0646\u06cc\u0645.<\/p>\n<p>\u062f\u0631 \u0646\u0647\u0627\u06cc\u062a\u060c \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0645\u062b\u0627\u0644\u06cc \u0627\u0632 \u0645\u0642\u0627\u06cc\u0633\u0647 (\u063a\u06cc\u0631\u0642\u0627\u0628\u0644 \u062e\u0648\u0627\u0646\u062f\u0646) \u0627\u0645\u0627 \u0627\u0632 \u0646\u0638\u0631 \u0646\u062d\u0648\u06cc \u0645\u0639\u062a\u0628\u0631 \u0622\u0648\u0631\u062f\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-meta\">&gt;<\/span><span class=\"bash\"> (<span class=\"hljs-string\">\"42\"<\/span> == <span class=\"hljs-string\">'42'<\/span>) + (42 == <span class=\"hljs-string\">\"42\"<\/span>) == 2<\/span>\ntrue\n<\/code><\/pre>\n<p><code>\"42\" == '42'<\/code>  \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u0645\u06cc \u0634\u0648\u062f <code>true<\/code>\u060c \u0647\u0645\u0686\u0646\u06cc\u0646 <code>42 == \"42\"<\/code>.  \u0637\u0631\u0641 \u062f\u06cc\u06af\u0631 \u0628\u06cc\u0627\u0646 \u0646\u06cc\u0632 \u0627\u06cc\u0646 \u0627\u0633\u062a <code>true<\/code>\u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0645\u0627 \u0628\u0647 \u067e\u0627\u06cc\u0627\u0646 \u0631\u0633\u06cc\u062f\u06cc\u0645 <code>true + true<\/code>\u060c \u06a9\u0647 \u0628\u0647 \u0637\u0648\u0631 \u0636\u0645\u0646\u06cc \u062a\u0628\u062f\u06cc\u0644 \u0628\u0647 <code>1+1<\/code> \u0628\u0647 \u062f\u0644\u06cc\u0644 <code>+<\/code> \u0627\u0645\u0636\u0627 \u06a9\u0631\u062f\u0646.  \u0627\u06cc\u0646 \u0628\u062f\u06cc\u0647\u06cc \u0627\u0633\u062a <code>==<\/code> \u0628\u0647 <code>2<\/code>\u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0639\u0628\u0627\u0631\u062a \u06a9\u0644\u06cc \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u062f <code>true<\/code>.<\/p>\n<h2 id=\"falsyvaluecomparisoninjavascript\"><span class=\"ez-toc-section\" id=\"%d9%85%d9%82%d8%a7%db%8c%d8%b3%d9%87_%d9%85%d9%82%d8%a7%d8%af%db%8c%d8%b1_%d9%86%d8%a7%d8%af%d8%b1%d8%b3%d8%aa_%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%aa\"><\/span>\u0645\u0642\u0627\u06cc\u0633\u0647 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0646\u0627\u062f\u0631\u0633\u062a \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0622 <em>\u062f\u0631\u0648\u063a\u06cc\u0646<\/em> \u0645\u0642\u062f\u0627\u0631 \u0645\u062a\u063a\u06cc\u0631\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0628\u0647 \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u0645\u06cc\u200c\u0634\u0648\u062f <code>false<\/code>.  \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a\u060c \u0647\u0641\u062a \u0639\u062f\u062f \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f <em>\u062f\u0631\u0648\u063a\u06cc\u0646<\/em> \u0627\u0631\u0632\u0634 \u0647\u0627\u06cc &#8211; <code>false<\/code>\u060c <code>0<\/code>\u060c <code>\"\"<\/code>\u060c <code>()<\/code>\u060c <code>null<\/code>\u060c <code>undefined<\/code>\u060c <code>NaN<\/code>.<\/p>\n<p>\u062f\u0631 \u0645\u0648\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0639\u0645\u0644\u06af\u0631 \u062f\u0648 \u0628\u0631\u0627\u0628\u0631 \u0686\u0646\u062f \u0642\u0627\u0646\u0648\u0646 \u0633\u0627\u062f\u0647 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u0631\u0648\u06cc <em>\u062f\u0631\u0648\u063a\u06cc\u0646<\/em> \u0627\u0631\u0632\u0634 \u0647\u0627\u06cc:<\/p>\n<ul>\n<li><code>false<\/code>\u060c <code>0<\/code> \u0648 <code>\"\"<\/code> \u0645\u0639\u0627\u062f\u0644 \u0647\u0633\u062a\u0646\u062f<\/li>\n<li><code>undefined<\/code>  \u0648 <code>null<\/code> \u0628\u0631\u06af\u0634\u062a <code>true<\/code> \u0648\u0642\u062a\u06cc \u0628\u0627 \u062e\u0648\u062f\u0634\u0627\u0646 \u06cc\u0627 \u06cc\u06a9\u062f\u06cc\u06af\u0631 \u0645\u0642\u0627\u06cc\u0633\u0647 \u0645\u06cc \u0634\u0648\u0646\u062f \u0648 <code>false<\/code> \u062f\u0631 \u0645\u0642\u0627\u06cc\u0633\u0647 \u0628\u0627 \u0647\u0631 \u0686\u06cc\u0632 \u062f\u06cc\u06af\u0631\u06cc<\/li>\n<li><code>NaN<\/code>  \u062f\u0631 \u0645\u0642\u0627\u06cc\u0633\u0647 \u0628\u0627 \u0647\u0631 \u0686\u06cc\u0632\u06cc (\u062d\u062a\u06cc \u062f\u06cc\u06af\u0631\u06cc <code>NaN<\/code>) \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u062f <code>false<\/code><\/li>\n<\/ul>\n<p>\u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646\u060c \u0647\u0645\u0647 \u0627\u06cc\u0646\u0647\u0627 \u062e\u0648\u0627\u0647\u0646\u062f \u0628\u0648\u062f <code>true<\/code>:<\/p>\n<pre><code class=\"hljs\">&gt; <span class=\"hljs-literal\">false<\/span> == <span class=\"hljs-number\">0<\/span>;\n<span class=\"hljs-literal\">true<\/span>\n&gt; <span class=\"hljs-literal\">false<\/span> == <span class=\"hljs-string\">\"\"<\/span>;\n<span class=\"hljs-literal\">true<\/span>\n&gt; <span class=\"hljs-number\">0<\/span> == <span class=\"hljs-string\">\"\"<\/span>;\n<span class=\"hljs-literal\">true<\/span>\n&gt; <span class=\"hljs-literal\">undefined<\/span> == <span class=\"hljs-literal\">null<\/span>;\n<span class=\"hljs-literal\">true<\/span>\n&gt; <span class=\"hljs-literal\">undefined<\/span> == <span class=\"hljs-literal\">undefined<\/span>;\n<span class=\"hljs-literal\">true<\/span>\n&gt; <span class=\"hljs-literal\">null<\/span> == <span class=\"hljs-literal\">null<\/span>;\n<span class=\"hljs-literal\">true<\/span>\n&gt; () == <span class=\"hljs-literal\">false<\/span>;\n<span class=\"hljs-literal\">true<\/span>\n&gt; () == <span class=\"hljs-number\">0<\/span>;\n<span class=\"hljs-literal\">true<\/span>\n<\/code><\/pre>\n<p>\u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u0647\u0645\u0647 \u0627\u06cc\u0646\u0647\u0627 \u062e\u0648\u0627\u0647\u0646\u062f \u0628\u0648\u062f <code>false<\/code>:<\/p>\n<pre><code class=\"hljs\">&gt; <span class=\"hljs-literal\">undefined<\/span> == <span class=\"hljs-literal\">false<\/span>;\n<span class=\"hljs-literal\">false<\/span>\n&gt; <span class=\"hljs-number\">0<\/span> == <span class=\"hljs-literal\">null<\/span>;\n<span class=\"hljs-literal\">false<\/span>\n&gt; <span class=\"hljs-literal\">null<\/span> == <span class=\"hljs-literal\">true<\/span>\n<span class=\"hljs-literal\">false<\/span>\n&gt; <span class=\"hljs-literal\">NaN<\/span> == <span class=\"hljs-literal\">false<\/span>;\n<span class=\"hljs-literal\">false<\/span>\n&gt; <span class=\"hljs-literal\">NaN<\/span> == <span class=\"hljs-literal\">NaN<\/span>;\n<span class=\"hljs-literal\">false<\/span>\n<\/code><\/pre>\n<h2 id=\"strictequalityoperatorinjavascript\"><span class=\"ez-toc-section\" id=\"%d8%a7%d9%be%d8%b1%d8%a7%d8%aa%d9%88%d8%b1_%d8%a8%d8%b1%d8%a7%d8%a8%d8%b1%db%8c_%d8%af%d9%82%db%8c%d9%82_%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%aa\"><\/span>\u0627\u067e\u0631\u0627\u062a\u0648\u0631 \u0628\u0631\u0627\u0628\u0631\u06cc \u062f\u0642\u06cc\u0642 \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a (===)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0633\u0647 \u0628\u0631\u0627\u0628\u0631 \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0645\u062e\u0641\u0641 \u0627\u0633\u062a <em>\u0628\u0631\u0627\u0628\u0631\u06cc \u0634\u062f\u06cc\u062f<\/em>.  \u0627\u06cc\u0646 \u0628\u062f\u0627\u0646 \u0645\u0639\u0646\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0628\u0631 \u062e\u0644\u0627\u0641 \u0639\u0645\u0644\u06af\u0631 \u0628\u0631\u0627\u0628\u0631\u06cc \u0634\u0644 \u06a9\u0647 \u0642\u0628\u0644\u0627\u064b \u062f\u0631 \u0645\u0648\u0631\u062f \u0622\u0646 \u0635\u062d\u0628\u062a \u06a9\u0631\u062f\u06cc\u0645\u060c \u0647\u06cc\u0686 \u062a\u0628\u062f\u06cc\u0644 \u0636\u0645\u0646\u06cc \u0648\u062c\u0648\u062f \u0646\u062f\u0627\u0631\u062f.  \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0639\u0646\u06cc \u06a9\u0647 \u062e\u0631\u0648\u062c\u06cc \u0646\u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f <code>true<\/code> \u0645\u06af\u0631 \u0627\u06cc\u0646\u06a9\u0647 \u0647\u0631 \u062f\u0648 <strong>\u0646\u0648\u0639<\/strong> \u0648 <strong>\u0627\u0631\u0632\u0634 \u0647\u0627\u06cc<\/strong> \u0627\u0632 \u062f\u0648 \u0639\u0628\u0627\u0631\u062a \u0645\u0637\u0627\u0628\u0642\u062a \u062f\u0627\u0631\u0646\u062f.  \u0622\u0646\u0647\u0627 \u0645\u0637\u0627\u0628\u0642\u062a \u0646\u062f\u0627\u0631\u0646\u062f \u0631\u0648\u06cc \u062f\u06cc\u06af\u0631 \u062a\u0627\u06cc\u067e \u06a9\u0646\u06cc\u062f<\/p>\n<p>\u062d\u0627\u0644\u060c \u0628\u06cc\u0627\u06cc\u06cc\u062f \u0628\u0647 \u0686\u0646\u062f \u0645\u062b\u0627\u0644 \u0639\u0645\u0644\u06af\u0631 \u0628\u0631\u0627\u0628\u0631\u06cc \u062f\u0642\u06cc\u0642 \u0646\u06af\u0627\u0647\u06cc \u0628\u06cc\u0646\u062f\u0627\u0632\u06cc\u0645:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-meta\">&gt;<\/span><span class=\"bash\"> <span class=\"hljs-literal\">true<\/span> === <span class=\"hljs-literal\">true<\/span><\/span>\ntrue\n<span class=\"hljs-meta\">&gt;<\/span><span class=\"bash\"> <span class=\"hljs-literal\">true<\/span> === 1<\/span>\nfalse\n<span class=\"hljs-meta\">&gt;<\/span><span class=\"bash\"> <span class=\"hljs-literal\">false<\/span> === 0<\/span>\nfalse\n<\/code><\/pre>\n<p>\u0627\u06cc\u0646 \u0645\u062b\u0627\u0644 \u062a\u0648\u0644\u06cc\u062f \u0645\u06cc \u06a9\u0646\u062f <code>true<\/code> \u062f\u0631 \u0645\u0648\u0631\u062f \u0627\u0648\u0644 \u0632\u06cc\u0631\u0627 \u0647\u0631 \u062f\u0648 <strong>\u0646\u0648\u0639<\/strong> (\u0628\u0648\u0644\u06cc) \u0648 <strong>\u0627\u0631\u0632\u0634<\/strong> (<code>true<\/code>) \u0628\u0631\u0627\u0628\u0631 \u0647\u0633\u062a\u0646\u062f.  \u062f\u0631 \u062f\u0648 \u0645\u0648\u0631\u062f \u062f\u06cc\u06af\u0631 \u0628\u0627\u0632 \u0645\u06cc \u06af\u0631\u062f\u062f <code>false<\/code>\u060c \u0632\u06cc\u0631\u0627 \u0627\u06af\u0631\u0686\u0647 \u0645\u0642\u0627\u062f\u06cc\u0631 \u06cc\u06a9\u0633\u0627\u0646 \u0647\u0633\u062a\u0646\u062f\u060c \u0627\u0645\u0627 \u0627\u0646\u0648\u0627\u0639 \u0645\u0637\u0627\u0628\u0642\u062a \u0646\u062f\u0627\u0631\u0646\u062f.  \u0645\u0627 \u06cc\u06a9 \u0628\u0648\u0644\u06cc \u0631\u0627 \u0628\u0627 \u06cc\u06a9 \u0639\u062f\u062f \u0635\u062d\u06cc\u062d \u0645\u0642\u0627\u06cc\u0633\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u0645.<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-meta\">&gt;<\/span><span class=\"bash\"> 42 === 42<\/span>\ntrue\n<span class=\"hljs-meta\">&gt;<\/span><span class=\"bash\"> 42 === <span class=\"hljs-string\">\"42\"<\/span><\/span>\nfalse\n<\/code><\/pre>\n<p>\u062f\u0631 \u0627\u06cc\u0646\u062c\u0627\u060c \u0647\u0631 \u062f\u0648 \u0639\u062f\u062f \u0648 \u0645\u0642\u062f\u0627\u0631 \u062f\u0631 \u0645\u062b\u0627\u0644 \u0627\u0648\u0644 \u0628\u0627 \u0647\u0645 \u0628\u0631\u0627\u0628\u0631 \u0647\u0633\u062a\u0646\u062f\u060c \u062f\u0631 \u0646\u062a\u06cc\u062c\u0647 <code>true<\/code>\u060c \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u0645\u0642\u062f\u0627\u0631 \u0648 \u0646\u0648\u0639 \u0639\u062f\u0645 \u062a\u0637\u0627\u0628\u0642 \u062f\u0631 \u0645\u062b\u0627\u0644 \u062f\u0648\u0645\u060c \u0645\u0646\u062c\u0631 \u0628\u0647 <code>false<\/code>.<\/p>\n<h2 id=\"conclusion\"><span class=\"ez-toc-section\" id=\"%d9%86%d8%aa%db%8c%d8%ac%d9%87\"><\/span>\u0646\u062a\u06cc\u062c\u0647<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u062a\u0641\u0627\u0648\u062a \u0628\u06cc\u0646 \u0622\u0646 \u0647\u0627 \u0631\u0627 \u062a\u0648\u0636\u06cc\u062d \u062f\u0627\u062f\u06cc\u0645 <em>\u0639\u0645\u0644\u06af\u0631 \u0628\u0631\u0627\u0628\u0631\u06cc \u0634\u0644<\/em> \u0648 <em>\u0628\u0631\u0627\u0628\u0631\u06cc \u0634\u062f\u06cc\u062f<\/em> \u0627\u067e\u0631\u0627\u062a\u0648\u0631 \u062f\u0631 <em>\u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a<\/em>.<br \/>\n\u0645\u0627 \u0647\u0645 \u062a\u0648\u0636\u06cc\u062d \u062f\u0627\u062f\u06cc\u0645 \u06a9\u0647 \u0686\u06cc <em>\u0646\u0648\u0639 \u0627\u062c\u0628\u0627\u0631<\/em> \u0628\u0648\u062f \u0648 \u0645\u0641\u0647\u0648\u0645 \u0627\u062c\u0628\u0627\u0631 \u0627\u0632 \u0646\u0648\u0639 \u0635\u0631\u06cc\u062d \u0648 \u0636\u0645\u0646\u06cc.<\/p>\n<p>\u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0645\u062a\u0648\u062c\u0647 \u0634\u062f\u0647 \u0628\u0627\u0634\u06cc\u062f \u06a9\u0647 \u0627\u062c\u0628\u0627\u0631 \u0646\u0648\u0639 \u0636\u0645\u0646\u06cc \u06a9\u0647 \u0647\u0646\u06af\u0627\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0639\u0645\u0644\u06af\u0631 \u0628\u0631\u0627\u0628\u0631\u06cc \u0622\u0632\u0627\u062f \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0631\u062e \u0645\u06cc \u062f\u0647\u062f\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0633\u06cc\u0627\u0631 \u063a\u06cc\u0631\u0642\u0627\u0628\u0644 \u067e\u06cc\u0634 \u0628\u06cc\u0646\u06cc \u0628\u0627\u0634\u062f. <a rel=\"nofollow noopener\" raget=\"_blank\" href=\"http:\/\/www.jsfuck.com\/\" target=\"_blank\">\u0645\u062a\u0646\u0627\u0642\u0636<\/a>.  \u0628\u0647 \u0647\u0645\u06cc\u0646 \u062f\u0644\u06cc\u0644 \u0627\u0633\u062a \u06a9\u0647 \u0627\u06af\u0631 \u0628\u0627 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u062e\u06cc\u0644\u06cc \u062a\u062c\u0631\u0628\u0647 \u0646\u062f\u0627\u0631\u06cc\u062f\u060c \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0628\u0647\u062a\u0631 \u0627\u0633\u062a \u0647\u0646\u06af\u0627\u0645 \u0628\u0631\u0631\u0633\u06cc \u0645\u0633\u0627\u0648\u06cc \u0628\u0648\u062f\u0646 \u06cc\u0627 \u0646\u0628\u0648\u062f\u0646 \u0627\u06cc\u0646 \u062f\u0648 \u0639\u0628\u0627\u0631\u062a\u060c \u0627\u0632 \u0639\u0645\u0644\u06af\u0631 \u0628\u0631\u0627\u0628\u0631\u06cc \u062f\u0642\u06cc\u0642 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n<p>\u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0639\u0645\u0644\u06af\u0631 \u0628\u0631\u0627\u0628\u0631\u06cc \u062f\u0642\u06cc\u0642\u060c \u0647\u0645 \u0646\u0648\u0639 \u0648 \u0647\u0645 \u0645\u0642\u062f\u0627\u0631 \u0631\u0627 \u0622\u0632\u0645\u0627\u06cc\u0634 \u0645\u06cc \u06a9\u0646\u06cc\u062f\u060c \u0648 \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0645\u0637\u0645\u0626\u0646 \u0628\u0627\u0634\u06cc\u062f \u06a9\u0647 \u0647\u0645\u06cc\u0634\u0647 \u06cc\u06a9 \u0622\u0632\u0645\u0648\u0646 \u0628\u0631\u0627\u0628\u0631\u06cc \u0648\u0627\u0642\u0639\u06cc \u0631\u0627 \u0627\u062c\u0631\u0627 \u0645\u06cc \u06a9\u0646\u06cc\u062f.<\/p>\n<\/div>\n<p><br \/>\n<br \/>\u0645\u0646\u062a\u0634\u0631 \u0634\u062f\u0647 \u062f\u0631 1403-01-17 21:29:05<br \/>\n<\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-center kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;center&quot;,&quot;id&quot;:&quot;15842&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;0&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;0&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;\u0627\u0645\u062a\u06cc\u0627\u0632 \u0634\u0645\u0627 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0637\u0644\u0628&quot;,&quot;legend&quot;:&quot;0\\\/5 (0 \u0631\u0627\u06cc)&quot;,&quot;size&quot;:&quot;30&quot;,&quot;title&quot;:&quot;\u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a: == \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 === \u0639\u0645\u0644\u06af\u0631\u0647\u0627\u06cc OperatorComparison \u062f\u0631 \u0639\u0628\u0627\u0631\u0627\u062a \u0645\u0646\u0637\u0642\u06cc \u0628\u0631\u0627\u06cc \u062a\u0639\u06cc\u06cc\u0646 \u0627\u06cc\u0646\u06a9\u0647 \u0622\u06cc\u0627 \u062f\u0648 \u0645\u062a\u063a\u06cc\u0631 \u06cc\u0627 \u0634\u06cc \u0628\u0627 \u0628\u0631\u062e\u06cc \u0627\u0632 \u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc \u062a\u0639\u06cc\u06cc\u0646 \u0634\u062f\u0647 \u06cc\u0627 \u0633\u0641\u0627\u0631\u0634\u06cc \u062a\u0639\u0631\u06cc\u0641 \u0634\u062f\u0647 \u0628\u0631\u0627\u0628\u0631 \u0647\u0633\u062a\u0646\u062f \u06cc\u0627 \u062e\u06cc\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f.  \u0627\u06af\u0631 \u062f\u0648 \u0645\u062a\u063a\u06cc\u0631 \u06cc\u0627 \u0634\u06cc \u0628\u0631\u0627\u0628\u0631 \u0627\u0633\u062a\u0646\u0628\u0627\u0637 \u0634\u0648\u0646\u062f\u060c \u0639\u0645\u0644\u06af\u0631 true \u0648 \u0627\u06af\u0631 \u0627\u06cc\u0646\u0637\u0648\u0631 \u0646\u0628\u0627\u0634\u062f false \u0631\u0627 \u0628\u0631\u0645\u06cc\u200c\u06af\u0631\u062f\u0627\u0646\u062f.  \u0639\u0645\u0644\u06af\u0631\u0647\u0627\u06cc \u0645\u0642\u0627\u06cc\u0633\u0647 \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0639\u0628\u0627\u0631\u062a\u0646\u062f \u0627\u0632: \\u0026lt;...&quot;,&quot;width&quot;:&quot;0&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} ({count} \u0631\u0627\u06cc)&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 0px;\">\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 24px;\">\n            <span class=\"kksr-muted\">\u0627\u0645\u062a\u06cc\u0627\u0632 \u0634\u0645\u0627 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0637\u0644\u0628<\/span>\n    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">\u0632\u0645\u0627\u0646 \u0644\u0627\u0632\u0645 \u0628\u0631\u0627\u06cc \u0645\u0637\u0627\u0644\u0639\u0647: <\/span> <span class=\"rt-time\"> 5<\/span> <span class=\"rt-label rt-postfix\">\u062f\u0642\u06cc\u0642\u0647<\/span><\/span>\u0645\u0639\u0631\u0641\u06cc \u0639\u0645\u0644\u06af\u0631\u0647\u0627\u06cc \u0645\u0642\u0627\u06cc\u0633\u0647 \u062f\u0631 \u0639\u0628\u0627\u0631\u0627\u062a \u0645\u0646\u0637\u0642\u06cc \u0628\u0631\u0627\u06cc \u062a\u0639\u06cc\u06cc\u0646 \u0627\u06cc\u0646\u06a9\u0647 \u0622\u06cc\u0627 \u062f\u0648 \u0645\u062a\u063a\u06cc\u0631 \u06cc\u0627 \u0634\u06cc\u0621 \u0647\u0633\u062a\u0646\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f \u0628\u0631\u0627\u0628\u0631 \u062a\u0648\u0633\u0637 \u0628\u0631\u062e\u06cc \u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc \u0627\u0632 \u0642\u0628\u0644 \u062a\u0639\u06cc\u06cc\u0646 \u0634\u062f\u0647 \u06cc\u0627 \u062a\u0639\u0631\u06cc\u0641 \u0634\u062f\u0647 \u0633\u0641\u0627\u0631\u0634\u06cc. \u0627\u06af\u0631 \u062f\u0648 \u0645\u062a\u063a\u06cc\u0631 \u06cc\u0627 \u0634\u06cc\u0621 \u0627\u0633\u062a\u0646\u0628\u0627\u0637 \u0634\u0648\u0646\u062f \u0628\u0631\u0627\u0628\u0631 \u0627\u067e\u0631\u0627\u062a\u0648\u0631 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u062f true\u060c \u0648 false \u0627\u06af\u0631 \u0646\u06cc\u0633\u062a\u0646\u062f \u0639\u0645\u0644\u06af\u0631\u0647\u0627\u06cc \u0645\u0642\u0627\u06cc\u0633\u0647 \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0639\u0628\u0627\u0631\u062a\u0646\u062f \u0627\u0632: &lt; &#8211; [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":9043,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1772,620],"tags":[4252,4255,4247,4249,1840,1938,2147,1776,1786,4248,1781,2433,4250,2140,1779,3947,1814,3307,4253,1841,2846,2263,1780,1103,2289,2750,2049,1803,1859,3826,2097,2264,2437,2445,1864,4254,3164,4246,2326,3873,2784,902,3713,1790,4251,2322,2408,2366,1831],"class_list":["post-15842","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-javascript","category-programming","tag-false","tag-lt","tag-operatorcomparison","tag-true","tag-1840","tag-1938","tag-2147","tag-1776","tag-1786","tag-4248","tag-1781","tag-2433","tag-4250","tag-2140","tag-1779","tag-3947","tag-1814","tag-3307","tag-4253","tag-1841","tag-2846","tag-2263","tag-1780","tag-1103","tag-2289","tag-2750","tag-2049","tag-1803","tag---nodejs","tag-3826","tag-2097","tag-2264","tag-2437","tag-2445","tag-1864","tag-4254","tag-3164","tag-4246","tag-2326","tag-3873","tag-2784","tag-902","tag-3713","tag-1790","tag-4251","tag-2322","tag-2408","tag-2366","tag-1831"],"acf":[],"_links":{"self":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts\/15842","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/comments?post=15842"}],"version-history":[{"count":0,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts\/15842\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/media\/9043"}],"wp:attachment":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/media?parent=15842"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/categories?post=15842"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/tags?post=15842"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}