{"id":65636,"date":"2024-06-08T03:17:48","date_gmt":"2024-06-07T23:47:48","guid":{"rendered":"https:\/\/nabfollower.com\/blog\/%d8%b9%d9%85%d9%84%da%af%d8%b1%d9%87%d8%a7%db%8c-%d8%a7%d8%aa%d8%b5%d8%a7%d9%84-%da%a9%d9%88%d8%aa%d8%a7%d9%87-%d9%88-%d9%85%d9%86%d8%b7%d9%82%db%8c-%d8%af%d8%b1-%d8%ac%d8%a7%d9%88%d8%a7-%d8%a7%d8%b3\/"},"modified":"2024-06-08T03:17:48","modified_gmt":"2024-06-07T23:47:48","slug":"%d8%b9%d9%85%d9%84%da%af%d8%b1%d9%87%d8%a7%db%8c-%d8%a7%d8%aa%d8%b5%d8%a7%d9%84-%da%a9%d9%88%d8%aa%d8%a7%d9%87-%d9%88-%d9%85%d9%86%d8%b7%d9%82%db%8c-%d8%af%d8%b1-%d8%ac%d8%a7%d9%88%d8%a7-%d8%a7%d8%b3","status":"publish","type":"post","link":"https:\/\/nabfollower.com\/blog\/%d8%b9%d9%85%d9%84%da%af%d8%b1%d9%87%d8%a7%db%8c-%d8%a7%d8%aa%d8%b5%d8%a7%d9%84-%da%a9%d9%88%d8%aa%d8%a7%d9%87-%d9%88-%d9%85%d9%86%d8%b7%d9%82%db%8c-%d8%af%d8%b1-%d8%ac%d8%a7%d9%88%d8%a7-%d8%a7%d8%b3\/","title":{"rendered":"\u0639\u0645\u0644\u06af\u0631\u0647\u0627\u06cc \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0648 \u0645\u0646\u0637\u0642\u06cc \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a: &#038;&#038;\u060c ||\u060c ??"},"content":{"rendered":"<p><\/p>\n<div data-article-id=\"1878824\" id=\"article-body\">\n<p><strong>\u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647<\/strong> \u0645\u0641\u0647\u0648\u0645\u06cc \u062f\u0631 \u0639\u0645\u0644\u06cc\u0627\u062a \u0645\u0646\u0637\u0642\u06cc \u062f\u0631 \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u0632\u0628\u0627\u0646 \u0647\u0627\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 \u0646\u0648\u06cc\u0633\u06cc \u0627\u0632 \u062c\u0645\u0644\u0647 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0627\u0633\u062a \u06a9\u0647 \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u0628\u0647 \u0645\u062d\u0636 \u062a\u0639\u06cc\u06cc\u0646 \u0646\u062a\u06cc\u062c\u0647 \u0645\u062a\u0648\u0642\u0641 \u0645\u06cc \u0634\u0648\u062f.  \u0645\u0627\u0646\u0646\u062f \u0639\u0645\u0644\u06af\u0631 AND \u0648 OR \u0639\u0645\u0644\u06af\u0631.  \u0627\u06cc\u0646 \u0648\u06cc\u0698\u06af\u06cc \u0641\u0642\u0637 \u0628\u0647 \u0645\u0642\u062f\u0627\u0631 \u0627\u0648\u0644 \u0646\u06af\u0627\u0647 \u0645\u06cc \u06a9\u0646\u062f \u062a\u0627 \u062a\u0635\u0645\u06cc\u0645 \u0628\u06af\u06cc\u0631\u062f \u06a9\u0647 \u0686\u0647 \u0686\u06cc\u0632\u06cc \u0631\u0627 \u0628\u062f\u0648\u0646 \u062d\u062a\u06cc \u0646\u06af\u0627\u0647 \u06a9\u0631\u062f\u0646 \u0628\u0647 \u0645\u0642\u062f\u0627\u0631 \u062f\u0648\u0645 \u0628\u0627\u0632\u06af\u0631\u062f\u0627\u0646\u062f.<br \/>\u0628\u0647 \u0648\u06cc\u0698\u0647 \u0628\u0631\u0627\u06cc \u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u06a9\u062f \u0648 \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632 \u0645\u062d\u0627\u0633\u0628\u0627\u062a \u063a\u06cc\u0631 \u0636\u0631\u0648\u0631\u06cc \u0645\u0641\u06cc\u062f \u0627\u0633\u062a.<\/p>\n<p>\u0631\u0627 <strong>&#038;&#038; \u0627\u067e\u0631\u0627\u062a\u0648\u0631<\/strong>: \u0627\u06af\u0631 \u0645\u0642\u062f\u0627\u0631 \u0627\u0648\u0644 \u0628\u0627\u0634\u062f <strong>\u062f\u0631\u0633\u062a \u0627\u0633\u062a\u060c \u0648\u0627\u0642\u0639\u06cc<\/strong>\u060c \u0628\u0644\u0627\u0641\u0627\u0635\u0644\u0647 &#8220;\u0645\u0642\u062f\u0627\u0631 \u062f\u0648\u0645&#8221; \u0631\u0627 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f \u0648 \u0627\u06af\u0631 \u0645\u0642\u062f\u0627\u0631 \u0627\u0648\u0644 \u0628\u0627\u0634\u062f <strong>\u062a\u0642\u0644\u0628\u06cc<\/strong> \u0628\u0644\u0627\u0641\u0627\u0635\u0644\u0647 &#8220;\u0645\u0642\u062f\u0627\u0631 \u0646\u0627\u062f\u0631\u0633\u062a&#8221; \u0631\u0627 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f.<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>\/\/ falsy values: 0, '', undefined, null\nconsole.log(true &amp;&amp; 'Something'); \/\/ Something\nconsole.log(false &amp;&amp; 'Something'); \/\/ false\nconsole.log(0 &amp;&amp; 'Something'); \/\/ 0\n11\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>\u0631\u0627 <strong>||  \u0627\u067e\u0631\u0627\u062a\u0648\u0631<\/strong>: \u0627\u06af\u0631 \u0645\u0642\u062f\u0627\u0631 \u0627\u0648\u0644 \u0628\u0627\u0634\u062f <strong>\u062f\u0631\u0633\u062a \u0627\u0633\u062a\u060c \u0648\u0627\u0642\u0639\u06cc<\/strong>\u060c \u0628\u0644\u0627\u0641\u0627\u0635\u0644\u0647 &#8220;true&#8221; \u0631\u0627 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f \u0648 \u0627\u06af\u0631 \u0645\u0642\u062f\u0627\u0631 \u0627\u0648\u0644 \u0628\u0627\u0634\u062f <strong>\u062a\u0642\u0644\u0628\u06cc<\/strong> \u0628\u0644\u0627\u0641\u0627\u0635\u0644\u0647 &#8220;\u0645\u0642\u062f\u0627\u0631 \u062f\u0648\u0645&#8221; \u0631\u0627 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f.<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>\/\/ falsy values: 0, '', undefined, null\nconsole.log(true || 'Something'); \/\/ true\nconsole.log(false || 'Something'); \/\/ Something\nconsole.log(0 || 'Something'); \/\/ Something\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\u0645\u0627 \u0645\u0642\u062f\u0627\u0631 \u0628\u0631\u06af\u0634\u062a\u06cc \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0645\u0634\u06a9\u0644 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f \u0632\u06cc\u0631\u0627 \u0627\u06af\u0631 \u0645\u0642\u062f\u0627\u0631 \u0627\u0648\u0644 0 \u0628\u0627\u0634\u062f \u0627\u0645\u0627 \u062f\u0631 \u0648\u0627\u0642\u0639 \u0646\u0627\u062f\u0631\u0633\u062a \u0646\u0628\u0627\u0634\u062f\u060c \u0641\u0642\u0637 \u0646\u0627\u062f\u0631\u0633\u062a \u0627\u0633\u062a!  \u0633\u067e\u0633 \u0628\u0627\u06cc\u062f \u0645\u0642\u062f\u0627\u0631 \u0648\u0627\u0642\u0639\u06cc 0 \u0631\u0627 \u0628\u062f\u0633\u062a \u0622\u0648\u0631\u06cc\u0645 \u0646\u0647 \u0645\u0642\u062f\u0627\u0631 \u062f\u0648\u0645 \u0631\u0627.<br \/>\u0645\u062b\u0627\u0644\u06cc \u062f\u06cc\u06af\u0631:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>const count1 = undefined;\nconst count2 = 0;\nconsole.log(count1 || 'No data'); \/\/ No data\nconsole.log(count2 || 'No data'); \/\/ No data\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\u062c\u0627\u060c \u06af\u0632\u0627\u0631\u0634 \u06a9\u0646\u0633\u0648\u0644 \u062f\u0648\u0645 \u0628\u0627\u06cc\u062f 0 \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u062a\u0639\u062f\u0627\u062f \u06a9\u0644 \u0646\u0634\u0627\u0646 \u062f\u0647\u062f\u060c \u0646\u0647 \u062a\u0639\u0631\u06cc\u0641 \u0646\u0634\u062f\u0647.  \u0628\u0631\u0627\u06cc \u0631\u0641\u0639 \u0627\u06cc\u0646 \u0645\u0634\u06a9\u0644\u060c \u0628\u0627\u06cc\u062f \u0628\u0647 \u0634\u0631\u0637 \u0627\u0646\u0639\u0637\u0627\u0641 \u067e\u0630\u06cc\u0631\u06cc \u0628\u0627 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0646\u0627\u062f\u0631\u0633\u062a \u063a\u06cc\u0631 \u0627\u0632 null \u0648 undefined \u0628\u062f\u0647\u06cc\u0645.  \u0627\u06cc\u0646\u062c\u0627\u0633\u062a \u06a9\u0647 \u0645\u0627 \u0627\u0632 \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u0645 <strong>\u0639\u0645\u0644\u06af\u0631 \u0627\u062f\u063a\u0627\u0645 \u0628\u0627\u0637\u0644<\/strong>.  \u0627\u06cc\u0646 \u0639\u0645\u0644\u06af\u0631 \u0645\u0642\u062f\u0627\u0631 \u0646\u0627\u062f\u0631\u0633\u062a \u0631\u0627 \u0627\u06af\u0631 \u0686\u06cc\u0632\u06cc \u063a\u06cc\u0631 \u0627\u0632 \u062a\u0639\u0631\u06cc\u0641 \u0646\u0634\u062f\u0647 \u06cc\u0627 \u062a\u0647\u06cc \u0628\u0627\u0634\u062f\u060c \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f.  \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646\u060c \u0628\u0631\u0627\u06cc \u0645\u0642\u0627\u062f\u06cc\u0631 0 \u0648 \u0631\u0634\u062a\u0647 \u0647\u0627\u06cc \u062e\u0627\u0644\u06cc\u060c \u0645\u0642\u062f\u0627\u0631 \u0648\u0627\u0642\u0639\u06cc \u0622\u0646\u0647\u0627 \u0631\u0627 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f.<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>const count1 = undefined;\nconst count2 = 0;\nconst count3 = 5;\nconsole.log(count1 ?? 'No data'); \/\/ No data\nconsole.log(count2 ?? 'No data'); \/\/ 0\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><strong>\u0627\u067e\u0631\u0627\u062a\u0648\u0631 \u0632\u0646\u062c\u06cc\u0631\u0632\u0646\u06cc \u0627\u062e\u062a\u06cc\u0627\u0631\u06cc<\/strong>: \u0627\u06cc\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u062f\u0631 \u0647\u0646\u06af\u0627\u0645 \u0628\u0631\u062e\u0648\u0631\u062f \u0628\u0627 \u0627\u0634\u06cc\u0627\u06cc\u06cc \u06a9\u0647 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u062f\u0627\u0631\u0627\u06cc \u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc \u0627\u0632 \u062f\u0633\u062a \u0631\u0641\u062a\u0647 \u0628\u0627\u0634\u0646\u062f \u06cc\u0627 \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u062f \u0628\u0647 \u0637\u0648\u0631 \u0627\u06cc\u0645\u0646 \u0628\u0647 \u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc \u0639\u0645\u06cc\u0642 \u062a\u0648 \u062f\u0631 \u062a\u0648 \u062f\u0633\u062a\u0631\u0633\u06cc \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f\u060c \u0628\u0633\u06cc\u0627\u0631 \u0645\u0641\u06cc\u062f \u0628\u0627\u0634\u062f. <em>\u062e\u0627\u0644\u06cc<\/em> \u06cc\u0627 <em>\u062a\u0639\u0631\u06cc\u0641 \u0646\u0634\u062f\u0647<\/em> \u062e\u0637\u0627\u0647\u0627<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>const data = {\n value1: undefined, \/\/ or it could be { nested: undefined }\n value2: { nested: 3 },\n value3: { nested: 5 }\n};\nfunction getMultiplicationResult(obj1, obj2) {\n const val1 = obj1?.nested ?? 0;\n const val2 = obj2?.nested ?? 0;\n return val1 * val2;\n}\nconst result = getMultiplicationResult(data.value1, data.value2); \/\/ 0 * 3 = 0\nconst result = getMultiplicationResult(data.value2, data.value3); \/\/ 3 * 5 = 15\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\u062c\u0627\u060c \u0645\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f\u06cc\u0645 <strong>?<\/strong> (\u0627\u062e\u062a\u06cc\u0627\u0631\u06cc \u0632\u0646\u062c\u06cc\u0631) \u0628\u0631\u0627\u06cc \u062f\u0633\u062a\u0631\u0633\u06cc \u0627\u06cc\u0645\u0646 \u0628\u0647 <em>\u062a\u0648 \u062f\u0631 \u062a\u0648<\/em> \u062e\u0627\u0635\u06cc\u062a \u0627\u0634\u06cc\u0627\u0621 <em>obj1<\/em> \u0648 <em>obj2<\/em>.<br \/>\u0648 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f <strong>??<\/strong> (Nullish Coalescing) \u0628\u0631\u0627\u06cc \u0627\u0631\u0627\u0626\u0647 \u0645\u0642\u062f\u0627\u0631 \u067e\u06cc\u0634 \u0641\u0631\u0636 <em>0<\/em> \u0627\u06af\u0631 <em>\u062a\u0648 \u062f\u0631 \u062a\u0648<\/em> \u0627\u0633\u062a <em>\u062e\u0627\u0644\u06cc<\/em> \u06cc\u0627 <em>\u062a\u0639\u0631\u06cc\u0641 \u0646\u0634\u062f\u0647<\/em>.<br \/>\u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646\u060c \u0627\u06af\u0631 <em>data.value1<\/em> \u062a\u0639\u0631\u06cc\u0641 \u0646\u0634\u062f\u0647 \u0627\u0633\u062a \u06cc\u0627 \u0627\u06af\u0631 <em>data.value1.neted<\/em> \u062a\u0639\u0631\u06cc\u0641 \u0646\u0634\u062f\u0647 \u0627\u0633\u062a\u060c <em>\u0627\u0646\u062a\u062e\u0627\u0628 1<\/em> \u062a\u0646\u0638\u06cc\u0645 \u062e\u0648\u0627\u0647\u062f \u0634\u062f <em>0<\/em>.<\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0645\u0641\u0647\u0648\u0645\u06cc \u062f\u0631 \u0639\u0645\u0644\u06cc\u0627\u062a \u0645\u0646\u0637\u0642\u06cc \u062f\u0631 \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u0632\u0628\u0627\u0646 \u0647\u0627\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 \u0646\u0648\u06cc\u0633\u06cc \u0627\u0632 \u062c\u0645\u0644\u0647 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0627\u0633\u062a \u06a9\u0647 \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u0628\u0647 \u0645\u062d\u0636 \u062a\u0639\u06cc\u06cc\u0646 \u0646\u062a\u06cc\u062c\u0647 \u0645\u062a\u0648\u0642\u0641 \u0645\u06cc \u0634\u0648\u062f. \u0645\u0627\u0646\u0646\u062f \u0639\u0645\u0644\u06af\u0631 AND \u0648 OR \u0639\u0645\u0644\u06af\u0631. \u0627\u06cc\u0646 \u0648\u06cc\u0698\u06af\u06cc \u0641\u0642\u0637 \u0628\u0647 \u0645\u0642\u062f\u0627\u0631 \u0627\u0648\u0644 \u0646\u06af\u0627\u0647 \u0645\u06cc \u06a9\u0646\u062f \u062a\u0627 \u062a\u0635\u0645\u06cc\u0645 \u0628\u06af\u06cc\u0631\u062f \u06a9\u0647 \u0686\u0647 \u0686\u06cc\u0632\u06cc \u0631\u0627 \u0628\u062f\u0648\u0646 \u062d\u062a\u06cc \u0646\u06af\u0627\u0647 \u06a9\u0631\u062f\u0646 \u0628\u0647 \u0645\u0642\u062f\u0627\u0631 &hellip;<\/p>\n","protected":false},"author":2,"featured_media":65637,"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%2Fsphkmt9kod6v8z9ldazz.png","fifu_image_alt":"","footnotes":""},"categories":[339],"tags":[],"class_list":["post-65636","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\/65636","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=65636"}],"version-history":[{"count":0,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts\/65636\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/media\/65637"}],"wp:attachment":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/media?parent=65636"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/categories?post=65636"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/tags?post=65636"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}