{"id":22378,"date":"2023-05-11T02:37:16","date_gmt":"2023-05-10T23:07:16","guid":{"rendered":"https:\/\/nabfollower.com\/blog\/typescript-interface-3748\/"},"modified":"2023-05-11T02:37:16","modified_gmt":"2023-05-10T23:07:16","slug":"typescript-interface-3748","status":"publish","type":"post","link":"https:\/\/nabfollower.com\/blog\/typescript-interface-3748\/","title":{"rendered":"\u062a\u0627\u06cc\u067e \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a: \u0631\u0627\u0628\u0637 &#8211; \u0627\u0646\u062c\u0645\u0646 DEV"},"content":{"rendered":"<div data-article-id=\"1350545\" id=\"article-body\">\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647\u060c \u062f\u0631 \u0645\u0648\u0631\u062f \u0627\u06cc\u0646\u06a9\u0647 \u0686\u0647 \u0631\u0627\u0628\u0637\u06cc \u0647\u0633\u062a\u0646\u062f \u0648 \u0686\u06af\u0648\u0646\u0647 \u0627\u0632 \u0622\u0646\u0647\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f\u060c \u0628\u0647 \u0647\u0645\u0631\u0627\u0647 \u062a\u0641\u0627\u0648\u062a \u0628\u06cc\u0646 \u0646\u0648\u0639 \u0648 \u0631\u0627\u0628\u0637 \u0622\u0634\u0646\u0627 \u062e\u0648\u0627\u0647\u06cc\u062f \u0634\u062f.  \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0628\u0647 \u0634\u0645\u0627 \u062f\u0631\u06a9 \u0627\u0633\u0627\u0633\u06cc \u0627\u0632 \u0631\u0627\u0628\u0637 \u0631\u0627 \u0645\u06cc \u062f\u0647\u062f.<\/p>\n<blockquote>\n<p>\u0627\u06cc\u0646 \u06cc\u06a9 \u0633\u0631\u06cc \u06a9\u0627\u0645\u0644 \u0627\u0632 \u062a\u0627\u06cc\u067e \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0647\u0627 \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f \u06a9\u0647 \u062f\u0631 \u0622\u0646 \u0634\u0645\u0627 \u0627\u0632 \u0645\u0648\u0636\u0648\u0639\u0627\u062a \u0627\u0633\u0627\u0633\u06cc \u0645\u0627\u0646\u0646\u062f \u0631\u0634\u062a\u0647\u060c \u0628\u0648\u0644\u06cc \u062a\u0627 \u067e\u06cc\u0686\u06cc\u062f\u0647 \u062a\u0631 \u0645\u0627\u0646\u0646\u062f Type Aliases\u060c enums\u060c Interface\u060c Generics \u0648 \u063a\u06cc\u0631\u0647 \u06cc\u0627\u062f \u062e\u0648\u0627\u0647\u06cc\u062f \u06af\u0631\u0641\u062a.<\/p>\n<\/blockquote>\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 ' ><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/nabfollower.com\/blog\/typescript-interface-3748\/#%D9%81%D9%87%D8%B1%D8%B3%D8%AA_%D9%85%D8%B7%D8%A7%D9%84%D8%A8\" >\u0641\u0647\u0631\u0633\u062a \u0645\u0637\u0627\u0644\u0628<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/nabfollower.com\/blog\/typescript-interface-3748\/#%D8%B1%D8%A7%D8%A8%D8%B7\" >\u0631\u0627\u0628\u0637<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/nabfollower.com\/blog\/typescript-interface-3748\/#%D8%B1%D8%A7%D8%A8%D8%B7_%D8%AF%D8%B1_%D9%85%D9%82%D8%A7%D8%A8%D9%84_%D9%86%D9%88%D8%B9\" >\u0631\u0627\u0628\u0637 \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 \u0646\u0648\u0639<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/nabfollower.com\/blog\/typescript-interface-3748\/#%D8%A7%D9%81%D8%B2%D9%88%D8%AF%D9%86_%D9%81%DB%8C%D9%84%D8%AF%D9%87%D8%A7%DB%8C_%D8%AC%D8%AF%DB%8C%D8%AF\" >\u0627\u0641\u0632\u0648\u062f\u0646 \u0641\u06cc\u0644\u062f\u0647\u0627\u06cc \u062c\u062f\u06cc\u062f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/nabfollower.com\/blog\/typescript-interface-3748\/#%D8%AA%D9%85%D8%AF%DB%8C%D8%AF_%D9%85%DB%8C_%D8%B4%D9%88%D8%AF\" >\u062a\u0645\u062f\u06cc\u062f \u0645\u06cc \u0634\u0648\u062f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/nabfollower.com\/blog\/typescript-interface-3748\/#%D8%A7%D8%AA%D8%AD%D8%A7%D8%AF_%D8%A7%D8%AA%D8%B5%D8%A7%D9%84\" >\u0627\u062a\u062d\u0627\u062f. \u0627\u062a\u0635\u0627\u0644<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/nabfollower.com\/blog\/typescript-interface-3748\/#%D8%A8%D8%B3%D8%AA%D9%87_%D8%B4%D8%AF%D9%86\" >\u0628\u0633\u062a\u0647 \u0634\u062f\u0646<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"%D9%81%D9%87%D8%B1%D8%B3%D8%AA_%D9%85%D8%B7%D8%A7%D9%84%D8%A8\"><\/span>\n<p>  \u0641\u0647\u0631\u0633\u062a \u0645\u0637\u0627\u0644\u0628<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h2><span class=\"ez-toc-section\" id=\"%D8%B1%D8%A7%D8%A8%D8%B7\"><\/span>\n<p>  \u0631\u0627\u0628\u0637<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u06cc\u06a9 <em>\u0627\u0639\u0644\u0627\u0645\u06cc\u0647 \u0631\u0627\u0628\u0637<\/em> \u0631\u0627\u0647 \u062f\u06cc\u06af\u0631\u06cc \u0628\u0631\u0627\u06cc \u0646\u0627\u0645\u06af\u0630\u0627\u0631\u06cc \u06cc\u06a9 \u0646\u0648\u0639 \u0634\u06cc \u0627\u0633\u062a.  \u0634\u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0622\u0646 \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 <code>interface<\/code> \u06a9\u0644\u0645\u0647 \u06a9\u0644\u06cc\u062f\u06cc:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight typescript\"><code><span class=\"kr\">interface<\/span> <span class=\"nx\">User<\/span> <span class=\"p\">{<\/span>\n    <span class=\"nl\">name<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">,<\/span>\n    <span class=\"nx\">age<\/span><span class=\"p\">:<\/span> <span class=\"kr\">number<\/span><span class=\"p\">,<\/span>\n<span class=\"p\">}<\/span>\n\n<span class=\"c1\">\/\/ \u2705 CORRECT<\/span>\n<span class=\"kd\">let<\/span> <span class=\"nx\">newUser<\/span> <span class=\"p\">:<\/span> <span class=\"nx\">User<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span><span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">John<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span> <span class=\"na\">age<\/span><span class=\"p\">:<\/span> <span class=\"mi\">28<\/span><span class=\"p\">};<\/span>\n<span class=\"c1\">\/\/ \u274c ERROR: property 'age' is missing<\/span>\n<span class=\"kd\">let<\/span> <span class=\"nx\">newUser<\/span> <span class=\"p\">:<\/span> <span class=\"nx\">User<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span><span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">John<\/span><span class=\"dl\">\"<\/span><span class=\"p\">};<\/span>\n<span class=\"c1\">\/\/ \u274c ERROR: missing the following properties from type 'User': name, age <\/span>\n<span class=\"kd\">let<\/span> <span class=\"nx\">newUser<\/span> <span class=\"p\">:<\/span> <span class=\"nx\">User<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{};<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0647\u0645\u0686\u0646\u06cc\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f <code>readonly<\/code> \u0648 \u0631\u0648\u06cc\u06a9\u0631\u062f \u0627\u062e\u062a\u06cc\u0627\u0631\u06cc \u062f\u0631 <code>interface<\/code>:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight typescript\"><code><span class=\"kr\">interface<\/span> <span class=\"nx\">User<\/span> <span class=\"p\">{<\/span>\n    <span class=\"k\">readonly<\/span> <span class=\"nx\">id<\/span><span class=\"p\">:<\/span> <span class=\"kr\">number<\/span>     <span class=\"c1\">\/\/ readonly variable<\/span>\n    <span class=\"nx\">name<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">,<\/span>\n    <span class=\"nx\">age<\/span><span class=\"p\">:<\/span> <span class=\"kr\">number<\/span><span class=\"p\">,<\/span>\n    <span class=\"nx\">specialKey<\/span><span class=\"p\">?<\/span> <span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">,<\/span>   <span class=\"c1\">\/\/ optional <\/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 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u062a\u0648\u0627\u0628\u0639 \u0631\u0627 \u0628\u0647 <code>interface<\/code>\u060c \u062f\u0648 \u0631\u0627\u0647 \u0628\u0631\u0627\u06cc \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight typescript\"><code><span class=\"c1\">\/\/ Method-1<\/span>\n<span class=\"kr\">interface<\/span> <span class=\"nx\">User<\/span> <span class=\"p\">{<\/span>\n    <span class=\"nx\">getDiscount<\/span><span class=\"p\">(<\/span><span class=\"nx\">coupon<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">):<\/span> <span class=\"kr\">number<\/span>     \n<span class=\"p\">}<\/span>\n\n<span class=\"c1\">\/\/ For Both you need to call this like this:<\/span>\n<span class=\"kd\">const<\/span> <span class=\"nx\">newUser<\/span><span class=\"p\">:<\/span> <span class=\"nx\">User<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\n    <span class=\"na\">getDiscount<\/span><span class=\"p\">:<\/span> <span class=\"p\">(<\/span><span class=\"na\">coupon<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">KIJ298DD9J<\/span><span class=\"dl\">\"<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"mi\">10<\/span><span class=\"p\">;<\/span>\n    <span class=\"p\">}<\/span>\n<span class=\"p\">}<\/span>\n\n<span class=\"c1\">\/\/ Method-2<\/span>\n<span class=\"kr\">interface<\/span> <span class=\"nx\">User<\/span> <span class=\"p\">{<\/span>\n    <span class=\"nl\">getDiscount<\/span><span class=\"p\">:<\/span> <span class=\"p\">(<\/span><span class=\"nx\">coupon<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"kr\">number<\/span>\n<span class=\"p\">}<\/span>\n\n<span class=\"c1\">\/\/ \ud83d\udc49 You see I have changed the 'coupon' to 'couponName'<\/span>\n<span class=\"c1\">\/\/ You don't need to match the name of the parameter here<\/span>\n<span class=\"c1\">\/\/ It will take care of it<\/span>\n<span class=\"kd\">const<\/span> <span class=\"nx\">newUser<\/span><span class=\"p\">:<\/span> <span class=\"nx\">User<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\n    <span class=\"na\">getDiscount<\/span><span class=\"p\">:<\/span> <span class=\"p\">(<\/span><span class=\"na\">couponName<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">KIJ298DD9J<\/span><span class=\"dl\">\"<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"mi\">10<\/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>\u06a9\u0647 \u062f\u0631 <strong>\u0631\u0648\u0634 1<\/strong> \u0634\u0645\u0627 \u0628\u0647 \u0633\u0627\u062f\u06af\u06cc \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0632 <code>()<\/code> \u0628\u0631\u0627\u06cc \u06af\u0641\u062a\u0646 \u0639\u0645\u0644\u06a9\u0631\u062f\u06cc \u0645\u0627\u0646\u0646\u062f \u0627\u06cc\u0646 \u062f\u0627\u0631\u062f: <code>getDiscount(): number<\/code> \u0648 string \u0627\u0646\u0648\u0627\u0639 \u0628\u0631\u06af\u0634\u062a\u06cc \u0647\u0633\u062a\u0646\u062f \u0648 \u0647\u06cc\u0686 \u0622\u0631\u06af\u0648\u0645\u0627\u0646 \u0646\u0645\u06cc\u200c\u06af\u06cc\u0631\u062f.<\/p>\n<p>\u06a9\u0647 \u062f\u0631 <strong>\u0631\u0648\u0634 2<\/strong> \u0645\u0627 \u0627\u0632 \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u0641\u0644\u0634 \u0645\u0627\u0646\u0646\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u0645 <code>getDiscount: () =&gt; number<\/code>.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%D8%B1%D8%A7%D8%A8%D8%B7_%D8%AF%D8%B1_%D9%85%D9%82%D8%A7%D8%A8%D9%84_%D9%86%D9%88%D8%B9\"><\/span>\n<p>  \u0631\u0627\u0628\u0637 \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 \u0646\u0648\u0639<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0646\u0627\u0645 \u0645\u0633\u062a\u0639\u0627\u0631 \u0648 \u0631\u0627\u0628\u0637 \u0647\u0627\u06cc \u062a\u0627\u06cc\u067e \u0628\u0633\u06cc\u0627\u0631 \u0634\u0628\u06cc\u0647 \u0628\u0647 \u0647\u0645 \u0647\u0633\u062a\u0646\u062f \u0648 \u062f\u0631 \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u0645\u0648\u0627\u0631\u062f\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0622\u0632\u0627\u062f\u0627\u0646\u0647 \u0628\u06cc\u0646 \u0622\u0646\u0647\u0627 \u06cc\u06a9\u06cc \u0631\u0627 \u0627\u0646\u062a\u062e\u0627\u0628 \u06a9\u0646\u06cc\u062f.  \u062a\u0642\u0631\u06cc\u0628\u0627 \u062a\u0645\u0627\u0645 \u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc \u06cc\u06a9 <code>interface<\/code> \u062f\u0631 \u062f\u0633\u062a\u0631\u0633 \u0647\u0633\u062a\u0646\u062f <code>type<\/code> \u062a\u0645\u0627\u06cc\u0632 \u06a9\u0644\u06cc\u062f\u06cc \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u0646\u0645\u06cc \u062a\u0648\u0627\u0646 \u06cc\u06a9 \u0646\u0648\u0639 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0627\u0641\u0632\u0648\u062f\u0646 \u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc \u062c\u062f\u06cc\u062f \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 \u0631\u0627\u0628\u0637\u06cc \u06a9\u0647 \u0647\u0645\u06cc\u0634\u0647 \u0642\u0627\u0628\u0644 \u06af\u0633\u062a\u0631\u0634 \u0627\u0633\u062a\u060c \u062f\u0648\u0628\u0627\u0631\u0647 \u0628\u0627\u0632 \u06a9\u0631\u062f.<\/p>\n<p>\u0628\u06cc\u0627\u06cc\u06cc\u062f \u0628\u0627 \u0686\u0646\u062f \u0645\u062b\u0627\u0644 \u0622\u0646\u0647\u0627 \u0631\u0627 \u0645\u062a\u0645\u0627\u06cc\u0632 \u06a9\u0646\u06cc\u0645:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%D8%A7%D9%81%D8%B2%D9%88%D8%AF%D9%86_%D9%81%DB%8C%D9%84%D8%AF%D9%87%D8%A7%DB%8C_%D8%AC%D8%AF%DB%8C%D8%AF\"><\/span>\n<p>  \u0627\u0641\u0632\u0648\u062f\u0646 \u0641\u06cc\u0644\u062f\u0647\u0627\u06cc \u062c\u062f\u06cc\u062f<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u06a9\u0647 \u062f\u0631 <code>interface<\/code> \u0634\u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0641\u06cc\u0644\u062f\u0647\u0627\u06cc \u062c\u062f\u06cc\u062f\u06cc \u0631\u0627 \u0628\u0647 \u0631\u0627\u0628\u0637 \u0645\u0648\u062c\u0648\u062f \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u062f\u060c \u0627\u0645\u0627 \u0646\u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0641\u06cc\u0644\u062f\u0647\u0627\u06cc \u062c\u062f\u06cc\u062f\u06cc \u0631\u0627 \u0628\u0647 \u0646\u0648\u0639 \u0645\u0648\u062c\u0648\u062f \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u062f.  \u062e\u0637\u0627 \u062e\u0648\u0627\u0647\u062f \u06a9\u0631\u062f.<\/p>\n<p><strong>\u0631\u0627\u0628\u0637<\/strong><\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight typescript\"><code><span class=\"kr\">interface<\/span> <span class=\"nx\">User<\/span> <span class=\"p\">{<\/span>\n    <span class=\"nl\">id<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">;<\/span>    \n    <span class=\"nl\">email<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">;<\/span>\n<span class=\"p\">}<\/span>\n\n<span class=\"kr\">interface<\/span> <span class=\"nx\">User<\/span> <span class=\"p\">{<\/span>\n    <span class=\"nl\">name<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">;<\/span>\n<span class=\"p\">}<\/span>\n\n<span class=\"c1\">\/\/ Now you can add all the three values to the User interface<\/span>\n<span class=\"kd\">const<\/span> <span class=\"nx\">user<\/span><span class=\"p\">:<\/span> <span class=\"nx\">User<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\n    <span class=\"na\">id<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">2323232<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\n    <span class=\"na\">email<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">foo@email.com<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\n    <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">Foo<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\n<span class=\"p\">}<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>\u062a\u0627\u06cc\u067e \u06a9\u0646\u06cc\u062f<\/strong><\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight typescript\"><code><span class=\"kd\">type<\/span> <span class=\"nx\">User<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\n    <span class=\"na\">id<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">;<\/span>\n<span class=\"p\">}<\/span>\n\n<span class=\"kd\">type<\/span> <span class=\"nx\">User<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\n    <span class=\"na\">email<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">;<\/span>\n<span class=\"p\">}<\/span>\n\n<span class=\"c1\">\/\/ \u274c ERROR: Duplicate identifier \"User\"<\/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>\u06a9\u0647 \u062f\u0631 <code>interface<\/code> \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0641\u06cc\u0644\u062f\u0647\u0627\u06cc \u062c\u062f\u06cc\u062f \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u062f \u0648 \u0622\u0646\u0647\u0627 \u0631\u0627 \u0647\u0631 \u0637\u0648\u0631 \u06a9\u0647 \u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u062f \u062a\u063a\u06cc\u06cc\u0631 \u062f\u0647\u06cc\u062f\u060c \u0627\u0645\u0627 \u062f\u0631 <code>type<\/code> \u0634\u0645\u0627 \u0646\u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u0631\u0627 \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u06cc\u062f  \u06cc\u06a9 \u0628\u0627\u0631 \u062f\u0631 <code>type<\/code> \u0627\u06cc\u062c\u0627\u062f \u0634\u062f\u0647 \u0627\u0633\u062a\u060c \u0646\u0645\u06cc \u062a\u0648\u0627\u0646 \u0622\u0646 \u0631\u0627 \u062a\u063a\u06cc\u06cc\u0631 \u062f\u0627\u062f.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%D8%AA%D9%85%D8%AF%DB%8C%D8%AF_%D9%85%DB%8C_%D8%B4%D9%88%D8%AF\"><\/span>\n<p>  \u062a\u0645\u062f\u06cc\u062f \u0645\u06cc \u0634\u0648\u062f<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0628\u0631\u0627\u06cc \u06af\u0633\u062a\u0631\u0634 \u0627\u0632 \u0642\u0628\u0644 \u062a\u0639\u0631\u06cc\u0641 \u0634\u062f\u0647 <code>interface<\/code> \u06cc\u0627 <code>type<\/code> \u0647\u0631 \u062f\u0648 \u0631\u0648\u06cc\u06a9\u0631\u062f \u0645\u062a\u0641\u0627\u0648\u062a\u06cc \u062f\u0627\u0631\u0646\u062f. <code>interface<\/code> \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u062f <code>extends<\/code> \u06a9\u0644\u0645\u0647 \u06a9\u0644\u06cc\u062f\u06cc\u060c \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 <code>type<\/code> \u0627\u0632 \u062a\u0642\u0627\u0637\u0639 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<p><strong>\u0631\u0627\u0628\u0637<\/strong><\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight typescript\"><code><span class=\"kr\">interface<\/span> <span class=\"nx\">Car<\/span> <span class=\"p\">{<\/span>\n    <span class=\"nl\">model<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">;<\/span>\n    <span class=\"nl\">color<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">;<\/span>\n<span class=\"p\">}<\/span>\n\n<span class=\"c1\">\/\/ \ud83d\udc47 You can extend an interface using 'extends' keywords<\/span>\n<span class=\"kr\">interface<\/span> <span class=\"nx\">Tesla<\/span> <span class=\"kd\">extends<\/span> <span class=\"nx\">Car<\/span> <span class=\"p\">{<\/span>\n  <span class=\"nl\">autoPilotModelName<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">;<\/span>\n<span class=\"p\">};<\/span>\n\n<span class=\"c1\">\/\/ \u2705 Use Case<\/span>\n<span class=\"kd\">const<\/span> <span class=\"nx\">newCar<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Tesla<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\n    <span class=\"na\">model<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">S<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\n    <span class=\"na\">color<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">red<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\n    <span class=\"na\">autoPilotModelName<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">xyz<\/span><span class=\"dl\">\"<\/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><strong>\u0646\u0648\u0639<\/strong><\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight typescript\"><code><span class=\"kd\">type<\/span> <span class=\"nx\">Car<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\n    <span class=\"na\">model<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">;<\/span>\n    <span class=\"nl\">color<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">;<\/span>\n<span class=\"p\">}<\/span>\n<span class=\"c1\">\/\/ \ud83d\udc47 In type you need to use Intersection<\/span>\n<span class=\"kd\">type<\/span> <span class=\"nx\">Tesla<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">Car<\/span> <span class=\"o\">&amp;<\/span> <span class=\"p\">{<\/span>\n  <span class=\"na\">autoPilotModelName<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">;<\/span>\n<span class=\"p\">};<\/span>\n\n<span class=\"kd\">const<\/span> <span class=\"nx\">newCar<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Tesla<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\n    <span class=\"na\">model<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">S<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\n    <span class=\"na\">color<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">red<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\n    <span class=\"na\">autoPilotModelName<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">xyz<\/span><span class=\"dl\">\"<\/span>\n<span class=\"p\">}<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"%D8%A7%D8%AA%D8%AD%D8%A7%D8%AF_%D8%A7%D8%AA%D8%B5%D8%A7%D9%84\"><\/span>\n<p>  \u0627\u062a\u062d\u0627\u062f. \u0627\u062a\u0635\u0627\u0644<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u06a9\u0647 \u062f\u0631 <code>interface<\/code> \u0634\u0645\u0627 \u0646\u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u06cc\u06a9 \u0646\u0648\u0639 \u0627\u062a\u062d\u0627\u062f\u06cc\u0647 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f\u060c \u0627\u0645\u0627 \u0627\u06af\u0631 \u0627\u0632 \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u062f \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u0631\u0627 \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u06cc\u062f <code>type<\/code>.  \u0628\u06cc\u0627\u06cc\u06cc\u062f \u0645\u062b\u0627\u0644\u06cc \u0628\u0632\u0646\u06cc\u0645:<\/p>\n<p><strong>\u0631\u0627\u0628\u0637<\/strong><\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight typescript\"><code><span class=\"kr\">interface<\/span> <span class=\"nx\">User<\/span>  <span class=\"p\">{<\/span>\n    <span class=\"nl\">email<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">;<\/span>\n<span class=\"p\">}<\/span>\n\n<span class=\"kr\">interface<\/span> <span class=\"nx\">Admin<\/span>  <span class=\"p\">{<\/span>\n    <span class=\"nl\">email<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">;<\/span>\n    <span class=\"nl\">adminKey<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">;<\/span>\n<span class=\"p\">}<\/span>\n\n<span class=\"c1\">\/\/ \u274c ERROR: '{' expected.<\/span>\n<span class=\"kr\">interface<\/span> <span class=\"nx\">Person<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">User<\/span> <span class=\"o\">|<\/span> <span class=\"nx\">Admin<\/span><span class=\"p\">;<\/span>\n\n<span class=\"c1\">\/\/ \u2705 CORRECT: you can create union type like this<\/span>\n<span class=\"kd\">type<\/span> <span class=\"nx\">Person<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">User<\/span> <span class=\"o\">|<\/span> <span class=\"nx\">Admin<\/span><span class=\"p\">;<\/span>\n\n<span class=\"c1\">\/\/ \u2705 CORRECT: However you can use union type inside the interface<\/span>\n<span class=\"kr\">interface<\/span> <span class=\"nx\">Person<\/span> <span class=\"p\">{<\/span>\n    <span class=\"nl\">person<\/span><span class=\"p\">:<\/span> <span class=\"nx\">User<\/span> <span class=\"o\">|<\/span> <span class=\"nx\">Admin<\/span><span class=\"p\">;<\/span>\n<span class=\"p\">}<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>\u0646\u0648\u0639<\/strong><\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight typescript\"><code><span class=\"kd\">type<\/span> <span class=\"nx\">User<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\n    <span class=\"na\">email<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">;<\/span>\n<span class=\"p\">}<\/span>\n\n<span class=\"kd\">type<\/span> <span class=\"nx\">Admin<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\n    <span class=\"na\">email<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">;<\/span>\n    <span class=\"nl\">adminKey<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">;<\/span>\n<span class=\"p\">}<\/span>\n\n<span class=\"c1\">\/\/ \u2705 You can do that.<\/span>\n<span class=\"kd\">type<\/span> <span class=\"nx\">Person<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">User<\/span> <span class=\"o\">|<\/span> <span class=\"nx\">Admin<\/span><span class=\"p\">;<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u062f\u0631 \u0645\u062b\u0627\u0644 \u0628\u0627\u0644\u0627\u060c \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0645\u062a\u0648\u062c\u0647 \u0634\u062f\u0647 \u0628\u0627\u0634\u06cc\u062f \u06a9\u0647 \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u0645\u0646 \u0633\u0639\u06cc \u06a9\u0631\u062f\u0645 \u06cc\u06a9 \u0646\u0648\u0639 \u0627\u062a\u062d\u0627\u062f\u06cc\u0647 \u0628\u0647 \u0627\u06cc\u0646\u062a\u0631\u0641\u06cc\u0633 \u0627\u062e\u062a\u0635\u0627\u0635 \u062f\u0647\u0645 (<code>interface Person = User | Admin<\/code>)\u060c \u062e\u0637\u0627 \u062f\u0627\u062f.  \u0628\u0647 \u0627\u06cc\u0646 \u062f\u0644\u06cc\u0644 \u0627\u0633\u062a \u06a9\u0647 \u0646\u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0686\u06cc\u0632\u06cc \u0631\u0627 \u0628\u0647 \u0622\u0646 \u0627\u062e\u062a\u0635\u0627\u0635 \u062f\u0647\u06cc\u062f <code>interface<\/code>.  \u0646\u062d\u0648 \u06a9\u0627\u0647\u0634 \u0633\u0631\u0639\u062a \u0622\u0646 \u0645\u0634\u0627\u0628\u0647 \u0627\u0633\u062a <code>class<\/code>.  \u0627\u0645\u0627 \u0647\u0631 \u062f\u0648 \u0633\u0628\u06a9 \u06a9\u0627\u0631\u06cc \u0645\u062a\u0641\u0627\u0648\u062a\u06cc \u062f\u0627\u0631\u0646\u062f.<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight typescript\"><code><span class=\"kd\">class<\/span> <span class=\"nx\">MyClass<\/span> <span class=\"p\">{}<\/span>\n\n<span class=\"kr\">interface<\/span> <span class=\"nx\">Hello<\/span> <span class=\"p\">{}<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"%D8%A8%D8%B3%D8%AA%D9%87_%D8%B4%D8%AF%D9%86\"><\/span>\n<p>  \u0628\u0633\u062a\u0647 \u0634\u062f\u0646<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u062a\u0648\u0636\u06cc\u062d \u062f\u0627\u062f\u0647 \u0627\u0645 \u06a9\u0647 \u0686\u06cc\u0633\u062a <code>interface<\/code> \u0627\u0633\u062a \u0648 \u0646\u062d\u0648\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0646\u060c \u0647\u0645\u0631\u0627\u0647 \u0628\u0627 \u062a\u0641\u0627\u0648\u062a \u0628\u06cc\u0646 <code>type<\/code> \u0648 <code>interface<\/code>.  \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0628\u0647 \u0634\u0645\u0627 \u062f\u0631\u06a9 \u0627\u0633\u0627\u0633\u06cc \u0627\u0632 \u0631\u0627\u0628\u0637 \u0631\u0627 \u0645\u06cc \u062f\u0647\u062f.<\/p>\n<p>\u0627\u06cc\u0646 \u0645\u062c\u0645\u0648\u0639\u0647 \u0627\u06cc \u0627\u0632 \u062f\u0631\u0633 \u0647\u0627\u06cc Typescript \u0627\u0633\u062a \u06a9\u0647 \u0628\u0647 \u0634\u0645\u0627 \u06a9\u0645\u06a9 \u0645\u06cc \u06a9\u0646\u062f \u062a\u0627\u06cc\u067e \u0627\u0633\u06a9\u0631\u06cc\u067e \u0631\u0627 \u0627\u0632 \u0627\u0628\u062a\u062f\u0627 \u06cc\u0627\u062f \u0628\u06af\u06cc\u0631\u06cc\u062f.  \u0627\u06af\u0631 \u0627\u0632 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0644\u0630\u062a \u0628\u0631\u062f\u06cc\u062f\u060c \u0641\u0631\u0627\u0645\u0648\u0634 \u0646\u06a9\u0646\u06cc\u062f \u06a9\u0647 \u0628\u0631\u0627\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0628\u0639\u062f\u06cc\u060c \u2764\ufe0f \u0648 \u0646\u0634\u0627\u0646\u06a9 \ud83c\udff7\ufe0f\u0631\u0627 \u0628\u062f\u0647\u06cc\u062f \u0648 \u0627\u06af\u0631 \u0633\u0648\u0627\u0644 \u06cc\u0627 \u0628\u0627\u0632\u062e\u0648\u0631\u062f\u06cc \u062f\u0627\u0631\u06cc\u062f\u060c \u062f\u0631 \u0646\u0638\u0631\u0627\u062a \u0632\u06cc\u0631 \u062f\u0631\u06cc\u063a \u0646\u06a9\u0646\u06cc\u062f.  \u062f\u0631 \u0642\u0633\u0645\u062a \u0628\u0639\u062f\u06cc \u0645\u06cc \u0628\u06cc\u0646\u0645\u062a<\/p>\n<p><strong>\u0628\u0627 \u0645\u0646 \u0627\u0631\u062a\u0628\u0627\u0637 \u0628\u0631\u0642\u0631\u0627\u0631 \u06a9\u0646<\/strong><\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647\u060c \u062f\u0631 \u0645\u0648\u0631\u062f \u0627\u06cc\u0646\u06a9\u0647 \u0686\u0647 \u0631\u0627\u0628\u0637\u06cc \u0647\u0633\u062a\u0646\u062f \u0648 \u0686\u06af\u0648\u0646\u0647 \u0627\u0632 \u0622\u0646\u0647\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f\u060c \u0628\u0647 \u0647\u0645\u0631\u0627\u0647 \u062a\u0641\u0627\u0648\u062a \u0628\u06cc\u0646 \u0646\u0648\u0639 \u0648 \u0631\u0627\u0628\u0637 \u0622\u0634\u0646\u0627 \u062e\u0648\u0627\u0647\u06cc\u062f \u0634\u062f. \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0628\u0647 \u0634\u0645\u0627 \u062f\u0631\u06a9 \u0627\u0633\u0627\u0633\u06cc \u0627\u0632 \u0631\u0627\u0628\u0637 \u0631\u0627 \u0645\u06cc \u062f\u0647\u062f. \u0627\u06cc\u0646 \u06cc\u06a9 \u0633\u0631\u06cc \u06a9\u0627\u0645\u0644 \u0627\u0632 \u062a\u0627\u06cc\u067e \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0647\u0627 \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f \u06a9\u0647 \u062f\u0631 \u0622\u0646 \u0634\u0645\u0627 \u0627\u0632 \u0645\u0648\u0636\u0648\u0639\u0627\u062a \u0627\u0633\u0627\u0633\u06cc \u0645\u0627\u0646\u0646\u062f \u0631\u0634\u062a\u0647\u060c &hellip;<\/p>\n","protected":false},"author":2,"featured_media":22379,"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-22378","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\/22378","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=22378"}],"version-history":[{"count":0,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts\/22378\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/media\/22379"}],"wp:attachment":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/media?parent=22378"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/categories?post=22378"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/tags?post=22378"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}