{"id":29512,"date":"2023-07-07T00:32:42","date_gmt":"2023-07-06T21:02:42","guid":{"rendered":"https:\/\/nabfollower.com\/blog\/beginners-guide-loading-data-based-on-changes-to-other-data-in-angular-106k\/"},"modified":"2023-07-07T00:32:42","modified_gmt":"2023-07-06T21:02:42","slug":"beginners-guide-loading-data-based-on-changes-to-other-data-in-angular-106k","status":"publish","type":"post","link":"https:\/\/nabfollower.com\/blog\/beginners-guide-loading-data-based-on-changes-to-other-data-in-angular-106k\/","title":{"rendered":"\u0645\u062f\u06cc\u0631\u06cc\u062a \u062d\u0627\u0644\u062a \u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc \u0648\u0627\u06a9\u0646\u0634\u06cc \u0628\u0627 RxJS \u0648 Angular"},"content":{"rendered":"<div data-article-id=\"1528149\" id=\"article-body\">\n<p>\u0647\u0646\u06af\u0627\u0645\u06cc \u06a9\u0647 \u0628\u0627 Angular \u0628\u0631\u0646\u0627\u0645\u0647 \u0645\u06cc\u200c\u0633\u0627\u0632\u06cc\u062f\u060c \u0632\u0645\u0627\u0646\u06cc 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class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/nabfollower.com\/blog\/beginners-guide-loading-data-based-on-changes-to-other-data-in-angular-106k\/#%D9%BE%D8%A7%D8%B3%D8%AE_%D8%A8%D9%87_%D9%88%D8%B1%D9%88%D8%AF%DB%8C_%DA%A9%D8%A7%D8%B1%D8%A8%D8%B1\" >\u067e\u0627\u0633\u062e \u0628\u0647 \u0648\u0631\u0648\u062f\u06cc \u06a9\u0627\u0631\u0628\u0631<\/a><\/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\/beginners-guide-loading-data-based-on-changes-to-other-data-in-angular-106k\/#%D9%85%D8%AF%DB%8C%D8%B1%DB%8C%D8%AA_%D8%A8%D8%A7%D8%B1%DA%AF%DB%8C%D8%B1%DB%8C_%D9%88_%D8%AD%D8%A7%D9%84%D8%AA_%D9%87%D8%A7%DB%8C_%D8%AE%D8%B7%D8%A7_%D8%A8%D8%A7_RxJS\" >\u0645\u062f\u06cc\u0631\u06cc\u062a \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u0648 \u062d\u0627\u0644\u062a \u0647\u0627\u06cc \u062e\u0637\u0627 \u0628\u0627 RxJS<\/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\/beginners-guide-loading-data-based-on-changes-to-other-data-in-angular-106k\/#%D8%A7%DB%8C%D9%86_%D8%A7%D9%BE%D8%B1%D8%A7%D8%AA%D9%88%D8%B1%D9%87%D8%A7_%D9%BE%DB%8C%DA%86%DB%8C%D8%AF%D9%87_%D8%A8%D9%87_%D9%86%D8%B8%D8%B1_%D9%85%DB%8C_%D8%B1%D8%B3%D9%86%D8%AF_%DA%86%D8%B1%D8%A7_%D9%81%D9%82%D8%B7_%D8%A7%D8%B2_%D9%85%D8%AA%D8%BA%DB%8C%D8%B1%D9%87%D8%A7%DB%8C_%D8%AC%D8%AF%D8%A7%DA%AF%D8%A7%D9%86%D9%87_isLoading_%D9%88_hasError_%D8%A7%D8%B3%D8%AA%D9%81%D8%A7%D8%AF%D9%87_%D9%86%D9%85%DB%8C_%DA%A9%D9%86%DB%8C%D8%AF%D8%9F\" >\u0627\u06cc\u0646 \u0627\u067e\u0631\u0627\u062a\u0648\u0631\u0647\u0627 \u067e\u06cc\u0686\u06cc\u062f\u0647 \u0628\u0647 \u0646\u0638\u0631 \u0645\u06cc \u0631\u0633\u0646\u062f!  \u0686\u0631\u0627 \u0641\u0642\u0637 \u0627\u0632 \u0645\u062a\u063a\u06cc\u0631\u0647\u0627\u06cc \u062c\u062f\u0627\u06af\u0627\u0646\u0647 isLoading \u0648 hasError \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0646\u0645\u06cc \u06a9\u0646\u06cc\u062f\u061f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/nabfollower.com\/blog\/beginners-guide-loading-data-based-on-changes-to-other-data-in-angular-106k\/#%D9%85%D9%87%D9%85_%D8%A2%D9%86_%D8%B1%D8%A7_%D8%AE%D8%B4%DA%A9_%D9%86%DA%AF%D9%87_%D8%AF%D8%A7%D8%B1%DB%8C%D8%AF_%D8%A7%D9%BE%D8%B1%D8%A7%D8%AA%D9%88%D8%B1_RxJS_%D9%82%D8%A7%D8%A8%D9%84_%D8%A7%D8%B3%D8%AA%D9%81%D8%A7%D8%AF%D9%87_%D9%85%D8%AC%D8%AF%D8%AF_%D8%AE%D9%88%D8%AF_%D8%B1%D8%A7_%D8%A7%DB%8C%D8%AC%D8%A7%D8%AF_%DA%A9%D9%86%DB%8C%D8%AF\" >\u0645\u0647\u0645: \u0622\u0646 \u0631\u0627 \u062e\u0634\u06a9 \u0646\u06af\u0647 \u062f\u0627\u0631\u06cc\u062f!  \u0627\u067e\u0631\u0627\u062a\u0648\u0631 RxJS \u0642\u0627\u0628\u0644 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u062c\u062f\u062f \u062e\u0648\u062f \u0631\u0627 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/nabfollower.com\/blog\/beginners-guide-loading-data-based-on-changes-to-other-data-in-angular-106k\/#%D8%AD%D8%AA%DB%8C_%D8%B3%D8%A7%D8%AF%D9%87_%D8%AA%D8%B1_%DA%A9%D8%B1%D8%AF%D9%86_%D8%A2%D9%86_%D8%A8%D8%A7_ngxLoadWith\" >\u062d\u062a\u06cc \u0633\u0627\u062f\u0647 \u062a\u0631 \u06a9\u0631\u062f\u0646 \u0622\u0646 \u0628\u0627 *ngxLoadWith<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"%D9%BE%D8%A7%D8%B3%D8%AE_%D8%A8%D9%87_%D9%88%D8%B1%D9%88%D8%AF%DB%8C_%DA%A9%D8%A7%D8%B1%D8%A8%D8%B1\"><\/span>\n<p>  \u067e\u0627\u0633\u062e \u0628\u0647 \u0648\u0631\u0648\u062f\u06cc \u06a9\u0627\u0631\u0628\u0631<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0633\u0646\u0627\u0631\u06cc\u0648\u06cc\u06cc \u0631\u0627 \u062a\u0635\u0648\u0631 \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u062f\u0631 \u0622\u0646 \u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u06cc\u0645 \u0646\u062a\u0627\u06cc\u062c \u062c\u0633\u062a\u062c\u0648 \u0631\u0627 \u0647\u0646\u06af\u0627\u0645 \u062a\u0627\u06cc\u067e \u06a9\u0627\u0631\u0628\u0631 \u062f\u0631 \u06a9\u0627\u062f\u0631 \u062c\u0633\u062a\u062c\u0648 \u0646\u0634\u0627\u0646 \u062f\u0647\u06cc\u0645:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight typescript\"><code><span class=\"p\">@<\/span><span class=\"nd\">Component<\/span><span class=\"p\">({<\/span>\n  <span class=\"na\">selector<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">my-app<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\n  <span class=\"na\">standalone<\/span><span class=\"p\">:<\/span> <span class=\"kc\">true<\/span><span class=\"p\">,<\/span>\n  <span class=\"na\">imports<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"nx\">CommonModule<\/span><span class=\"p\">,<\/span> <span class=\"nx\">ReactiveFormsModule<\/span><span class=\"p\">],<\/span>\n  <span class=\"na\">template<\/span><span class=\"p\">:<\/span> <span class=\"s2\">`\n    &lt;input [formControl]=\"searchControl\" \/&gt;\n\n    &lt;div *ngIf=\"result$ | async as result\"&gt;\n        {{ result }}\n    &lt;\/div&gt;\n  `<\/span><span class=\"p\">,<\/span>\n<span class=\"p\">})<\/span>\n<span class=\"k\">export<\/span> <span class=\"kd\">class<\/span> <span class=\"nx\">App<\/span> <span class=\"p\">{<\/span>\n  <span class=\"c1\">\/\/ We are using a FormControl to watch the user's input<\/span>\n  <span class=\"nx\">searchControl<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">FormControl<\/span><span class=\"p\">(<\/span><span class=\"dl\">''<\/span><span class=\"p\">);<\/span>\n\n  <span class=\"nx\">result$<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">searchControl<\/span><span class=\"p\">.<\/span><span class=\"nx\">valueChanges<\/span><span class=\"p\">.<\/span><span class=\"nx\">pipe<\/span><span class=\"p\">(<\/span>\n    <span class=\"nx\">switchMap<\/span><span class=\"p\">(<\/span><span class=\"nx\">keywords<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">http<\/span><span class=\"p\">.<\/span><span class=\"kd\">get<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">\/api\/search<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"na\">params<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">q<\/span><span class=\"p\">:<\/span> <span class=\"nx\">keywords<\/span> <span class=\"p\">}))<\/span>\n  <span class=\"p\">);<\/span>\n\n  <span class=\"k\">private<\/span> <span class=\"nx\">http<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">inject<\/span><span class=\"p\">(<\/span><span class=\"nx\">HttpClient<\/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>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u062b\u0627\u0644\u060c <code>searchControl.valueChanges<\/code> \u0642\u0627\u0628\u0644 \u0645\u0634\u0627\u0647\u062f\u0647 \u0627\u0633\u062a.  \u0627\u06cc\u0646 Observable \u0647\u0631 \u0628\u0627\u0631 \u06a9\u0647 \u06a9\u0627\u0631\u0628\u0631 \u0645\u062a\u0646 \u0631\u0627 \u062f\u0631 \u06a9\u0627\u062f\u0631 \u062c\u0633\u062a\u062c\u0648 \u062a\u063a\u06cc\u06cc\u0631 \u0645\u06cc\u200c\u062f\u0647\u062f\u060c \u0631\u0648\u06cc\u062f\u0627\u062f\u06cc \u0631\u0627 \u0627\u0631\u0633\u0627\u0644 \u0645\u06cc\u200c\u06a9\u0646\u062f.  \u0633\u067e\u0633 \u0627\u0632 \u0686\u06cc\u0632\u06cc \u0628\u0647 \u0646\u0627\u0645 the \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u0645 <code>switchMap<\/code> \u0627\u067e\u0631\u0627\u062a\u0648\u0631 \u0627\u0632 RxJS.  \u0627\u06cc\u0646 \u0627\u067e\u0631\u0627\u062a\u0648\u0631 \u0628\u0647 \u0645\u0627 \u0627\u0645\u06a9\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f \u0647\u0631 \u0628\u0627\u0631 \u06a9\u0647 \u06a9\u0627\u0631\u0628\u0631 \u0645\u062a\u0646 \u0631\u0627 \u062a\u063a\u06cc\u06cc\u0631 \u0645\u06cc \u062f\u0647\u062f\u060c \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u062f\u0627\u062f\u0647 \u062c\u062f\u06cc\u062f \u0631\u0627 \u0627\u0631\u0627\u0626\u0647 \u062f\u0647\u06cc\u0645.  \u0647\u0645\u0686\u0646\u06cc\u0646 \u0645\u0637\u0645\u0626\u0646 \u0645\u06cc \u0634\u0648\u062f \u06a9\u0647 \u0645\u0627 \u0641\u0642\u0637 \u0628\u0627 \u0646\u062a\u0627\u06cc\u062c \u0622\u062e\u0631\u06cc\u0646 \u0648\u0631\u0648\u062f\u06cc \u0645\u062a\u0646 \u06a9\u0627\u0631 \u0645\u06cc \u06a9\u0646\u06cc\u0645.  \u0627\u06cc\u0646 \u0628\u0631\u0627\u06cc \u0633\u0631\u06cc\u0639 \u0646\u06af\u0647 \u062f\u0627\u0634\u062a\u0646 \u0628\u0631\u0646\u0627\u0645\u0647 \u0634\u0645\u0627 \u0648 \u0644\u0630\u062a \u0628\u0631\u062f\u0646 \u0627\u0632 \u0622\u0646 \u0628\u0631\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631 \u0628\u0633\u06cc\u0627\u0631 \u0645\u0647\u0645 \u0627\u0633\u062a.<\/p>\n<p>\u0645\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u0645 <code>*ngIf<\/code> \u0628\u0627 <code>async<\/code> \u0644\u0648\u0644\u0647 \u0628\u0647 \u0637\u0648\u0631\u06cc \u06a9\u0647 \u0642\u0627\u0644\u0628 \u0628\u0647 \u0637\u0648\u0631 \u062e\u0648\u062f\u06a9\u0627\u0631 \u0628\u0647 \u0645\u0627 \u0645\u062a\u0635\u0644 \u0634\u0648\u062f <code>result$<\/code> \u0642\u0627\u0628\u0644 \u0645\u0634\u0627\u0647\u062f\u0647 \u0627\u0633\u062a \u0648 \u062e\u0648\u062f \u0628\u0647 \u0631\u0648\u0632 \u0645\u06cc \u0634\u0648\u062f.  \u0627\u06cc\u0646 \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u062d\u0627\u0635\u0644 \u0645\u06cc \u06a9\u0646\u062f \u06a9\u0647 \u0627\u0644\u06af\u0648 \u0647\u0645\u06cc\u0634\u0647 \u062c\u062f\u06cc\u062f\u062a\u0631\u06cc\u0646 \u0646\u062a\u0627\u06cc\u062c \u062c\u0633\u062a\u062c\u0648 \u0631\u0627 \u0628\u0647 \u06a9\u0627\u0631\u0628\u0631 \u062f\u0631 \u0632\u0645\u0627\u0646 \u062a\u0627\u06cc\u067e \u062f\u0631 \u06a9\u0627\u062f\u0631 \u062c\u0633\u062a\u062c\u0648 \u0646\u0634\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%D9%85%D8%AF%DB%8C%D8%B1%DB%8C%D8%AA_%D8%A8%D8%A7%D8%B1%DA%AF%DB%8C%D8%B1%DB%8C_%D9%88_%D8%AD%D8%A7%D9%84%D8%AA_%D9%87%D8%A7%DB%8C_%D8%AE%D8%B7%D8%A7_%D8%A8%D8%A7_RxJS\"><\/span>\n<p>  \u0645\u062f\u06cc\u0631\u06cc\u062a \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u0648 \u062d\u0627\u0644\u062a \u0647\u0627\u06cc \u062e\u0637\u0627 \u0628\u0627 RxJS<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0628\u062e\u0634 \u06a9\u0644\u06cc\u062f\u06cc \u062f\u0631\u06cc\u0627\u0641\u062a \u062f\u0627\u062f\u0647\u060c \u062f\u0627\u062f\u0646 \u0628\u0627\u0632\u062e\u0648\u0631\u062f \u0628\u0647 \u06a9\u0627\u0631\u0628\u0631 \u062f\u0631 \u0637\u0648\u0644 \u06a9\u0644 \u0641\u0631\u0622\u06cc\u0646\u062f \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u0627\u0633\u062a.  \u0627\u06cc\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u06cc\u06a9 \u067e\u06cc\u0627\u0645 \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u06cc\u0627 \u06cc\u06a9 \u067e\u06cc\u0627\u0645 \u062e\u0637\u0627 \u0628\u0627\u0634\u062f.  \u0628\u0647 \u062c\u0627\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062c\u062f\u0627 <code>isLoading<\/code> \u06cc\u0627 <code>hasError<\/code> \u0645\u062a\u063a\u06cc\u0631\u0647\u0627\u06cc \u0645\u0648\u062c\u0648\u062f \u062f\u0631 \u06a9\u0627\u0645\u067e\u0648\u0646\u0646\u062a \u0647\u0627\u06cc \u062e\u0648\u062f\u060c \u0627\u0632 \u0628\u0631\u062e\u06cc \u0639\u0645\u0644\u06af\u0631\u0647\u0627\u06cc RxJS \u0628\u0647 \u0646\u0627\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u0645 <code>map<\/code>\u060c <code>catchError<\/code>\u060c <code>startWith<\/code>\u060c \u0648 <code>scan<\/code>.<\/p>\n<p>\u0628\u06cc\u0627\u06cc\u06cc\u062f \u0628\u0647 \u0645\u062b\u0627\u0644 \u0632\u06cc\u0631 \u0646\u06af\u0627\u0647\u06cc \u0628\u06cc\u0646\u062f\u0627\u0632\u06cc\u0645:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight typescript\"><code><span class=\"kr\">interface<\/span> <span class=\"nx\">LoadingState<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">T<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">unknown<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>\n  <span class=\"na\">loading<\/span><span class=\"p\">:<\/span> <span class=\"nx\">boolean<\/span><span class=\"p\">;<\/span>\n  <span class=\"nl\">error<\/span><span class=\"p\">?:<\/span> <span class=\"nb\">Error<\/span> <span class=\"o\">|<\/span> <span class=\"kc\">null<\/span><span class=\"p\">;<\/span>\n  <span class=\"nl\">data<\/span><span class=\"p\">?:<\/span> <span class=\"nx\">T<\/span><span class=\"p\">;<\/span>\n<span class=\"p\">}<\/span>\n\n<span class=\"p\">@<\/span><span class=\"nd\">Component<\/span><span class=\"p\">({<\/span>\n  <span class=\"na\">selector<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">my-app<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\n  <span class=\"na\">standalone<\/span><span class=\"p\">:<\/span> <span class=\"kc\">true<\/span><span class=\"p\">,<\/span>\n  <span class=\"na\">imports<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"nx\">CommonModule<\/span><span class=\"p\">,<\/span> <span class=\"nx\">ReactiveFormsModule<\/span><span class=\"p\">],<\/span>\n  <span class=\"na\">template<\/span><span class=\"p\">:<\/span> <span class=\"s2\">`\n    &lt;input [formControl]=\"searchControl\" \/&gt;\n\n    &lt;div *ngIf=\"result$ | async as result\"&gt;\n      &lt;div *ngIf=\"result.loading\"&gt;Loading...&lt;\/div&gt;\n      &lt;div *ngIf=\"result.data as data\"&gt;{{data}}&lt;\/div&gt;\n      &lt;div *ngIf=\"result.error as error\"&gt;{{error.message}}&lt;\/div&gt;\n    &lt;\/div&gt;\n  `<\/span><span class=\"p\">,<\/span>\n<span class=\"p\">})<\/span>\n<span class=\"k\">export<\/span> <span class=\"kd\">class<\/span> <span class=\"nx\">App<\/span> <span class=\"p\">{<\/span>\n  <span class=\"nx\">searchControl<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">FormControl<\/span><span class=\"p\">(<\/span><span class=\"dl\">''<\/span><span class=\"p\">);<\/span>\n\n  <span class=\"nx\">result$<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">searchControl<\/span><span class=\"p\">.<\/span><span class=\"nx\">valueChanges<\/span><span class=\"p\">.<\/span><span class=\"nx\">pipe<\/span><span class=\"p\">(<\/span>\n    <span class=\"nx\">switchMap<\/span><span class=\"p\">((<\/span><span class=\"nx\">value<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span>\n      <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">http<\/span><span class=\"p\">.<\/span><span class=\"kd\">get<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">\/api\/search<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"na\">params<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">q<\/span><span class=\"p\">:<\/span> <span class=\"nx\">value<\/span> <span class=\"p\">}).<\/span><span class=\"nx\">pipe<\/span><span class=\"p\">(<\/span>\n        <span class=\"nx\">map<\/span><span class=\"p\">((<\/span><span class=\"nx\">data<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span> <span class=\"nx\">data<\/span><span class=\"p\">,<\/span> <span class=\"na\">loading<\/span><span class=\"p\">:<\/span> <span class=\"kc\">false<\/span> <span class=\"p\">})),<\/span>\n        <span class=\"nx\">catchError<\/span><span class=\"p\">((<\/span><span class=\"nx\">error<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"k\">of<\/span><span class=\"p\">({<\/span> <span class=\"nx\">error<\/span><span class=\"p\">,<\/span> <span class=\"na\">loading<\/span><span class=\"p\">:<\/span> <span class=\"kc\">false<\/span> <span class=\"p\">})),<\/span>\n        <span class=\"nx\">startWith<\/span><span class=\"p\">({<\/span> <span class=\"na\">error<\/span><span class=\"p\">:<\/span> <span class=\"kc\">null<\/span><span class=\"p\">,<\/span> <span class=\"na\">loading<\/span><span class=\"p\">:<\/span> <span class=\"kc\">true<\/span> <span class=\"p\">})<\/span>\n      <span class=\"p\">)<\/span>\n    <span class=\"p\">),<\/span>\n    <span class=\"nx\">scan<\/span><span class=\"p\">((<\/span><span class=\"na\">state<\/span><span class=\"p\">:<\/span> <span class=\"nx\">LoadingState<\/span><span class=\"o\">&lt;<\/span><span class=\"kr\">string<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">,<\/span> <span class=\"na\">change<\/span><span class=\"p\">:<\/span> <span class=\"nx\">LoadingState<\/span><span class=\"o\">&lt;<\/span><span class=\"kr\">string<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span>\n      <span class=\"p\">...<\/span><span class=\"nx\">state<\/span><span class=\"p\">,<\/span>\n      <span class=\"p\">...<\/span><span class=\"nx\">change<\/span><span class=\"p\">,<\/span>\n    <span class=\"p\">}))<\/span>\n  <span class=\"p\">);<\/span>\n\n  <span class=\"k\">private<\/span> <span class=\"nx\">http<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">inject<\/span><span class=\"p\">(<\/span><span class=\"nx\">HttpClient<\/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>\u062f\u0631 \u06a9\u062f \u0628\u0627\u0644\u0627:<\/p>\n<ol>\n<li>\n<p>\u0645\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u0645 <code>map<\/code> \u0628\u0631\u0627\u06cc \u062a\u063a\u06cc\u06cc\u0631 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u062e\u0627\u0645 \u0627\u0632 \u062f\u0631\u062e\u0648\u0627\u0633\u062a HTTP \u0628\u0647 \u06cc\u06a9 \u0634\u06cc.  \u0627\u06cc\u0646 \u0634\u06cc \u0634\u0627\u0645\u0644 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0648 a <code>loading<\/code> \u067e\u0631\u0686\u0645\u06cc \u06a9\u0647 \u062a\u0646\u0638\u06cc\u0645 \u0634\u062f\u0647 \u0627\u0633\u062a <code>false<\/code>.<\/p>\n<\/li>\n<li>\n<p>\u0645\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u0645 <code>catchError<\/code> \u0628\u0631\u0627\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u0647\u0631 \u06af\u0648\u0646\u0647 \u062e\u0637\u0627\u06cc\u06cc \u06a9\u0647 \u062f\u0631 \u0637\u0648\u0644 \u062f\u0631\u062e\u0648\u0627\u0633\u062a HTTP \u0631\u062e \u0645\u06cc \u062f\u0647\u062f.  \u0627\u06af\u0631 \u062e\u0637\u0627\u06cc\u06cc \u0631\u062e \u062f\u0647\u062f\u060c \u06cc\u06a9 Observable \u0631\u0627 \u0628\u0627 \u06cc\u06a9 \u0634\u06cc \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f.  \u0627\u06cc\u0646 \u0634\u06cc \u0634\u0627\u0645\u0644 \u062e\u0637\u0627 \u0648 a <code>loading<\/code> \u067e\u0631\u0686\u0645\u06cc \u06a9\u0647 \u062a\u0646\u0638\u06cc\u0645 \u0634\u062f\u0647 \u0627\u0633\u062a <code>false<\/code>.<\/p>\n<\/li>\n<li>\n<p>\u0645\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u0645 <code>startWith<\/code> \u0628\u0631\u0627\u06cc \u0634\u0631\u0648\u0639 \u062c\u0631\u06cc\u0627\u0646 \u0628\u0627 \u06cc\u06a9 \u0645\u0642\u062f\u0627\u0631 \u062e\u0627\u0635.  \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627\u060c \u0628\u0627 \u06cc\u06a9 \u0634\u06cc \u0634\u0631\u0648\u0639 \u0645\u06cc \u0634\u0648\u062f \u06a9\u0647 \u0634\u0627\u0645\u0644 a \u0627\u0633\u062a <code>null<\/code> \u062e\u0637\u0627 \u0648 \u0627\u0644\u0641 <code>loading<\/code> \u067e\u0631\u0686\u0645 \u062a\u0646\u0638\u06cc\u0645 \u0634\u062f\u0647 \u0627\u0633\u062a <code>true<\/code>.  \u0627\u06cc\u0646 \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u062d\u0627\u0635\u0644 \u0645\u06cc \u06a9\u0646\u062f \u06a9\u0647 \u06a9\u0627\u0631\u0628\u0631 \u0642\u0628\u0644 \u0627\u0632 \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u0647\u0631 \u06af\u0648\u0646\u0647 \u062f\u0627\u062f\u0647\u060c \u0648\u0636\u0639\u06cc\u062a \u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc \u0631\u0627 \u0645\u06cc \u0628\u06cc\u0646\u062f.<\/p>\n<\/li>\n<li>\n<p><code>scan<\/code>  \u0645\u0627\u0646\u0646\u062f \u06a9\u0627\u0631 \u0645\u06cc \u06a9\u0646\u062f <code>Array.reduce<\/code>.  \u062d\u0627\u0644\u062a \u0642\u0628\u0644\u06cc \u0648 \u062a\u063a\u06cc\u06cc\u0631\u0627\u062a \u062c\u062f\u06cc\u062f \u0631\u0627 \u0645\u06cc \u06af\u06cc\u0631\u062f \u0648 \u0622\u0646\u0647\u0627 \u0631\u0627 \u062f\u0631 \u062d\u0627\u0644\u062a \u062c\u062f\u06cc\u062f \u0645\u062e\u0644\u0648\u0637 \u0645\u06cc \u06a9\u0646\u062f.  \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627\u060c \u062d\u0627\u0644\u062a \u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc \u0642\u0628\u0644\u06cc \u0631\u0627 \u0645\u06cc \u06af\u06cc\u0631\u062f \u0648 \u0622\u0646 \u0631\u0627 \u0628\u0627 \u062a\u063a\u06cc\u06cc\u0631\u0627\u062a \u0646\u062a\u06cc\u062c\u0647 \u062f\u0631\u062e\u0648\u0627\u0633\u062a HTTP \u062a\u0631\u06a9\u06cc\u0628 \u0645\u06cc \u06a9\u0646\u062f.  \u0628\u0647 \u0627\u06cc\u0646 \u062a\u0631\u062a\u06cc\u0628\u060c \u0645\u0627 \u06cc\u06a9 \u062c\u0631\u06cc\u0627\u0646 \u062b\u0627\u0628\u062a \u0627\u0632 \u062a\u063a\u06cc\u06cc\u0631\u0627\u062a \u062d\u0627\u0644\u062a \u0631\u0627 \u0646\u06af\u0647 \u0645\u06cc\u200c\u062f\u0627\u0631\u06cc\u0645 \u06a9\u0647 \u0647\u0631 \u06a9\u062f\u0627\u0645 \u062a\u063a\u06cc\u06cc\u0631\u0627\u062a \u062d\u0627\u0644\u062a \u0642\u0628\u0644 \u0631\u0627 \u0627\u0636\u0627\u0641\u0647 \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/p>\n<\/li>\n<li>\n<p>\u0627\u06a9\u0646\u0648\u0646\u060c \u062f\u0631 \u0642\u0627\u0644\u0628 \u062e\u0648\u062f\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0632 \u0644\u0648\u0644\u0647 async Angular \u0628\u0631\u0627\u06cc \u0627\u0634\u062a\u0631\u0627\u06a9 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f <code>result$<\/code>\u060c \u0648 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f <code>*ngIf<\/code> \u0628\u0631\u0627\u06cc \u0646\u0634\u0627\u0646 \u062f\u0627\u062f\u0646 \u0642\u0633\u0645\u062a \u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u0642\u0627\u0644\u0628 \u0628\u0631 \u0627\u0633\u0627\u0633 \u0648\u0636\u0639\u06cc\u062a \u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc.<\/p>\n<\/li>\n<\/ol>\n<h2><span class=\"ez-toc-section\" id=\"%D8%A7%DB%8C%D9%86_%D8%A7%D9%BE%D8%B1%D8%A7%D8%AA%D9%88%D8%B1%D9%87%D8%A7_%D9%BE%DB%8C%DA%86%DB%8C%D8%AF%D9%87_%D8%A8%D9%87_%D9%86%D8%B8%D8%B1_%D9%85%DB%8C_%D8%B1%D8%B3%D9%86%D8%AF_%DA%86%D8%B1%D8%A7_%D9%81%D9%82%D8%B7_%D8%A7%D8%B2_%D9%85%D8%AA%D8%BA%DB%8C%D8%B1%D9%87%D8%A7%DB%8C_%D8%AC%D8%AF%D8%A7%DA%AF%D8%A7%D9%86%D9%87_isLoading_%D9%88_hasError_%D8%A7%D8%B3%D8%AA%D9%81%D8%A7%D8%AF%D9%87_%D9%86%D9%85%DB%8C_%DA%A9%D9%86%DB%8C%D8%AF%D8%9F\"><\/span>\n<p>  \u0627\u06cc\u0646 \u0627\u067e\u0631\u0627\u062a\u0648\u0631\u0647\u0627 \u067e\u06cc\u0686\u06cc\u062f\u0647 \u0628\u0647 \u0646\u0638\u0631 \u0645\u06cc \u0631\u0633\u0646\u062f!  \u0686\u0631\u0627 \u0641\u0642\u0637 \u0627\u0632 \u0645\u062a\u063a\u06cc\u0631\u0647\u0627\u06cc \u062c\u062f\u0627\u06af\u0627\u0646\u0647 isLoading \u0648 hasError \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0646\u0645\u06cc \u06a9\u0646\u06cc\u062f\u061f<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u062d\u062a\u06cc \u0627\u06af\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0646 \u0631\u0627\u062d\u062a \u062a\u0631 \u0628\u0647 \u0646\u0638\u0631 \u0628\u0631\u0633\u062f <code>this.isLoading<\/code> \u06cc\u0627 <code>this.hasError<\/code> \u0645\u062a\u063a\u06cc\u0631\u0647\u0627\u06cc \u0645\u0648\u062c\u0648\u062f \u062f\u0631 \u06a9\u0627\u0645\u067e\u0648\u0646\u0646\u062a \u0634\u0645\u0627\u060c \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0639\u0645\u0644\u06af\u0631\u0647\u0627\u06cc RxJS \u0628\u0647 \u0634\u0645\u0627 \u06a9\u0646\u062a\u0631\u0644 \u0628\u0647\u062a\u0631\u06cc \u0645\u06cc \u062f\u0647\u062f.<\/p>\n<p>\u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u062d\u0627\u0644\u062a\u200c\u0647\u0627\u06cc \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u0648 \u062e\u0637\u0627 \u062f\u0631 \u062c\u0631\u06cc\u0627\u0646 \u062f\u0627\u062f\u0647 \u0642\u0631\u0627\u0631 \u062f\u0627\u0631\u0646\u062f\u060c \u0628\u0627 \u0641\u0631\u0622\u06cc\u0646\u062f \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u0645\u0631\u062a\u0628\u0637 \u0647\u0633\u062a\u0646\u062f.  \u0622\u0646\u0647\u0627 \u0631\u0627 \u0646\u0645\u06cc \u062a\u0648\u0627\u0646 \u0628\u0627 \u0647\u06cc\u0686 \u0686\u06cc\u0632 \u062f\u06cc\u06af\u0631\u06cc \u062a\u063a\u06cc\u06cc\u0631 \u062f\u0627\u062f.  \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u0627\u0632 \u062a\u063a\u06cc\u06cc\u0631\u0627\u062a \u063a\u06cc\u0631\u0645\u0646\u062a\u0638\u0631\u0647 \u0648 \u0627\u0634\u06a9\u0627\u0644\u0627\u062a \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<p>\u0627\u06af\u0631 \u0627\u0632 \u0645\u062a\u063a\u06cc\u0631\u0647\u0627\u06cc \u062c\u062f\u0627\u06af\u0627\u0646\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u062f\u060c \u0628\u062e\u0634 \u0647\u0627\u06cc \u062f\u06cc\u06af\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 \u0634\u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u0622\u0646\u0647\u0627 \u0631\u0627 \u062a\u063a\u06cc\u06cc\u0631 \u062f\u0647\u0646\u062f.  \u0627\u06cc\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0645\u0646\u062c\u0631 \u0628\u0647 \u0627\u0634\u06a9\u0627\u0644\u0627\u062a\u06cc \u0634\u0648\u062f \u06a9\u0647 \u0631\u062f\u06cc\u0627\u0628\u06cc \u0648 \u0631\u0641\u0639 \u0622\u0646\u0647\u0627 \u062f\u0634\u0648\u0627\u0631 \u0627\u0633\u062a.<\/p>\n<p>\u0646\u06af\u0647 \u062f\u0627\u0634\u062a\u0646 \u0627\u06cc\u0646 \u062d\u0627\u0644\u062a \u0647\u0627 \u062f\u0631 \u062c\u0631\u06cc\u0627\u0646 \u062f\u0627\u062f\u0647\u060c \u06a9\u062f \u0634\u0645\u0627 \u0631\u0627 \u067e\u06cc\u0686\u06cc\u062f\u0647 \u062a\u0631 \u0648 \u0627\u06cc\u0645\u0646 \u062a\u0631 \u0645\u06cc \u06a9\u0646\u062f.  \u0647\u0645\u0686\u0646\u06cc\u0646 \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u062d\u0627\u0635\u0644 \u0645\u06cc \u06a9\u0646\u062f \u06a9\u0647 \u0631\u0627\u0628\u0637 \u06a9\u0627\u0631\u0628\u0631\u06cc \u0628\u0647 \u0631\u0627\u062d\u062a\u06cc \u0628\u0647 \u0631\u0648\u0632 \u0645\u06cc \u0634\u0648\u062f.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%D9%85%D9%87%D9%85_%D8%A2%D9%86_%D8%B1%D8%A7_%D8%AE%D8%B4%DA%A9_%D9%86%DA%AF%D9%87_%D8%AF%D8%A7%D8%B1%DB%8C%D8%AF_%D8%A7%D9%BE%D8%B1%D8%A7%D8%AA%D9%88%D8%B1_RxJS_%D9%82%D8%A7%D8%A8%D9%84_%D8%A7%D8%B3%D8%AA%D9%81%D8%A7%D8%AF%D9%87_%D9%85%D8%AC%D8%AF%D8%AF_%D8%AE%D9%88%D8%AF_%D8%B1%D8%A7_%D8%A7%DB%8C%D8%AC%D8%A7%D8%AF_%DA%A9%D9%86%DB%8C%D8%AF\"><\/span>\n<p>  \u0645\u0647\u0645: \u0622\u0646 \u0631\u0627 \u062e\u0634\u06a9 \u0646\u06af\u0647 \u062f\u0627\u0631\u06cc\u062f!  \u0627\u067e\u0631\u0627\u062a\u0648\u0631 RxJS \u0642\u0627\u0628\u0644 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u062c\u062f\u062f \u062e\u0648\u062f \u0631\u0627 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0627\u06cc\u0646 \u0627\u0644\u06af\u0648\u06cc \u06a9\u0647 \u062f\u0631 \u0645\u0648\u0631\u062f \u0622\u0646 \u0628\u062d\u062b \u06a9\u0631\u062f\u06cc\u0645 \u0628\u0633\u06cc\u0627\u0631 \u0645\u0648\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0642\u0631\u0627\u0631 \u0645\u06cc \u06af\u06cc\u0631\u062f\u060c \u0627\u0645\u0627 \u0645\u0627 \u0646\u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u0645 \u0647\u0645\u0627\u0646 \u06a9\u062f RxJS \u0631\u0627 \u0628\u0627\u0631\u0647\u0627 \u0648 \u0628\u0627\u0631\u0647\u0627 \u0628\u0646\u0648\u06cc\u0633\u06cc\u0645.  \u062e\u0648\u0634\u0628\u062e\u062a\u0627\u0646\u0647\u060c \u0633\u0627\u062e\u062a \u0627\u067e\u0631\u0627\u062a\u0648\u0631\u0647\u0627\u06cc RxJS \u062e\u0648\u062f\u062a\u0627\u0646 \u06a9\u0627\u0631 \u0633\u062e\u062a\u06cc \u0646\u06cc\u0633\u062a!  \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u0645 \u06a9\u062f\u06cc \u0631\u0627 \u06a9\u0647 \u0642\u0628\u0644\u0627\u064b \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0631\u062f\u06cc\u0645 \u0628\u0631\u062f\u0627\u0631\u06cc\u0645 \u0648 \u06cc\u06a9 \u0627\u067e\u0631\u0627\u062a\u0648\u0631 \u0645\u0641\u06cc\u062f RxJS \u0628\u0633\u0627\u0632\u06cc\u0645 \u06a9\u0647 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u0645 \u0627\u0632 \u0622\u0646 \u062f\u0631 \u0633\u0631\u0627\u0633\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 \u062e\u0648\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645.<\/p>\n<p>\u0628\u06cc\u0627\u06cc\u06cc\u062f \u0628\u0647 \u06cc\u06a9 \u0645\u062b\u0627\u0644 \u0646\u06af\u0627\u0647 \u06a9\u0646\u06cc\u0645: \u0645\u0627 \u0627\u067e\u0631\u0627\u062a\u0648\u0631 \u062e\u0648\u062f\u0645\u0627\u0646 \u0631\u0627 \u0641\u0631\u0627\u062e\u0648\u0627\u0646\u06cc \u062e\u0648\u0627\u0647\u06cc\u0645 \u06a9\u0631\u062f <code>switchMapWithLoading<\/code>.  \u0645\u0627 \u0622\u0646 \u0631\u0627 \u062f\u0631 \u06cc\u06a9 \u0641\u0627\u06cc\u0644 \u062c\u062f\u0627\u06af\u0627\u0646\u0647 \u0628\u0627 \u0646\u0627\u0645 \u0642\u0631\u0627\u0631 \u0645\u06cc \u062f\u0647\u06cc\u0645 <code>switch-map-with-loading.ts<\/code>.<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight typescript\"><code><span class=\"c1\">\/\/ switch-map-with-loading.ts<\/span>\n\n<span class=\"kr\">interface<\/span> <span class=\"nx\">LoadingState<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">T<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">unknown<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>\n  <span class=\"na\">loading<\/span><span class=\"p\">:<\/span> <span class=\"nx\">boolean<\/span><span class=\"p\">;<\/span>\n  <span class=\"nl\">error<\/span><span class=\"p\">?:<\/span> <span class=\"nb\">Error<\/span> <span class=\"o\">|<\/span> <span class=\"kc\">null<\/span><span class=\"p\">;<\/span>\n  <span class=\"nl\">data<\/span><span class=\"p\">?:<\/span> <span class=\"nx\">T<\/span><span class=\"p\">;<\/span>\n<span class=\"p\">}<\/span>\n\n<span class=\"k\">export<\/span> <span class=\"kd\">function<\/span> <span class=\"nx\">switchMapWithLoading<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">T<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">(<\/span>\n  <span class=\"nx\">observableFunction<\/span><span class=\"p\">:<\/span> <span class=\"p\">(<\/span><span class=\"nx\">value<\/span><span class=\"p\">:<\/span> <span class=\"kr\">any<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">Observable<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">T<\/span><span class=\"o\">&gt;<\/span>\n<span class=\"p\">):<\/span> <span class=\"nx\">OperatorFunction<\/span><span class=\"o\">&lt;<\/span><span class=\"kr\">any<\/span><span class=\"p\">,<\/span> <span class=\"nx\">LoadingState<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">T<\/span><span class=\"o\">&gt;&gt;<\/span> <span class=\"p\">{<\/span>\n  <span class=\"k\">return<\/span> <span class=\"p\">(<\/span><span class=\"na\">source<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Observable<\/span><span class=\"o\">&lt;<\/span><span class=\"kr\">any<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span>\n    <span class=\"nx\">source<\/span><span class=\"p\">.<\/span><span class=\"nx\">pipe<\/span><span class=\"p\">(<\/span>\n      <span class=\"nx\">switchMap<\/span><span class=\"p\">((<\/span><span class=\"nx\">value<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span>\n        <span class=\"nx\">observableFunction<\/span><span class=\"p\">(<\/span><span class=\"nx\">value<\/span><span class=\"p\">).<\/span><span class=\"nx\">pipe<\/span><span class=\"p\">(<\/span>\n          <span class=\"nx\">map<\/span><span class=\"p\">((<\/span><span class=\"nx\">data<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span> <span class=\"nx\">data<\/span><span class=\"p\">,<\/span> <span class=\"na\">loading<\/span><span class=\"p\">:<\/span> <span class=\"kc\">false<\/span> <span class=\"p\">})),<\/span>\n          <span class=\"nx\">catchError<\/span><span class=\"p\">((<\/span><span class=\"nx\">error<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"k\">of<\/span><span class=\"p\">({<\/span> <span class=\"nx\">error<\/span><span class=\"p\">,<\/span> <span class=\"na\">loading<\/span><span class=\"p\">:<\/span> <span class=\"kc\">false<\/span> <span class=\"p\">})),<\/span>\n          <span class=\"nx\">startWith<\/span><span class=\"p\">({<\/span> <span class=\"na\">error<\/span><span class=\"p\">:<\/span> <span class=\"kc\">null<\/span><span class=\"p\">,<\/span> <span class=\"na\">loading<\/span><span class=\"p\">:<\/span> <span class=\"kc\">true<\/span> <span class=\"p\">})<\/span>\n        <span class=\"p\">)<\/span>\n      <span class=\"p\">),<\/span>\n      <span class=\"nx\">scan<\/span><span class=\"p\">((<\/span><span class=\"na\">state<\/span><span class=\"p\">:<\/span> <span class=\"nx\">LoadingState<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">T<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">,<\/span> <span class=\"na\">change<\/span><span class=\"p\">:<\/span> <span class=\"nx\">LoadingState<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">T<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span>\n        <span class=\"p\">...<\/span><span class=\"nx\">state<\/span><span class=\"p\">,<\/span>\n        <span class=\"p\">...<\/span><span class=\"nx\">change<\/span><span class=\"p\">,<\/span>\n      <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>\u0633\u067e\u0633 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0622\u0646 \u0631\u0627 \u062f\u0631 \u06a9\u0627\u0645\u067e\u0648\u0646\u0646\u062a \u062e\u0648\u062f \u0648\u0627\u0631\u062f \u06a9\u0631\u062f\u0647 \u0648 \u0627\u0632 \u0622\u0646 \u0628\u0647 \u0635\u0648\u0631\u062a \u0632\u06cc\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight typescript\"><code><span class=\"p\">@<\/span><span class=\"nd\">Component<\/span><span class=\"p\">({<\/span>\n  <span class=\"na\">selector<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">my-app<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\n  <span class=\"na\">standalone<\/span><span class=\"p\">:<\/span> <span class=\"kc\">true<\/span><span class=\"p\">,<\/span>\n  <span class=\"na\">imports<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"nx\">CommonModule<\/span><span class=\"p\">,<\/span> <span class=\"nx\">ReactiveFormsModule<\/span><span class=\"p\">],<\/span>\n  <span class=\"na\">template<\/span><span class=\"p\">:<\/span> <span class=\"s2\">`\n    &lt;input [formControl]=\"searchControl\" \/&gt;\n\n    &lt;div *ngIf=\"result$ | async as result\"&gt;\n      &lt;div *ngIf=\"result.loading\"&gt;Loading...&lt;\/div&gt;\n      &lt;div *ngIf=\"result.data as data\"&gt;{{data}}&lt;\/div&gt;\n      &lt;div *ngIf=\"result.error as error\"&gt;{{error.message}}&lt;\/div&gt;\n    &lt;\/div&gt;\n  `<\/span><span class=\"p\">,<\/span>\n<span class=\"p\">})<\/span>\n<span class=\"k\">export<\/span> <span class=\"kd\">class<\/span> <span class=\"nx\">App<\/span> <span class=\"p\">{<\/span>\n  <span class=\"nx\">searchControl<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">FormControl<\/span><span class=\"p\">(<\/span><span class=\"dl\">''<\/span><span class=\"p\">);<\/span>\n\n  <span class=\"nx\">result$<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">searchControl<\/span><span class=\"p\">.<\/span><span class=\"nx\">valueChanges<\/span><span class=\"p\">.<\/span><span class=\"nx\">pipe<\/span><span class=\"p\">(<\/span>\n    <span class=\"nx\">switchMapWithLoading<\/span><span class=\"p\">((<\/span><span class=\"nx\">value<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">http<\/span><span class=\"p\">.<\/span><span class=\"kd\">get<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">\/api\/search<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"na\">params<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">q<\/span><span class=\"p\">:<\/span> <span class=\"nx\">value<\/span> <span class=\"p\">})))<\/span>\n  <span class=\"p\">);<\/span>\n\n  <span class=\"k\">private<\/span> <span class=\"nx\">http<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">inject<\/span><span class=\"p\">(<\/span><span class=\"nx\">HttpClient<\/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>\u0628\u0627 \u0627\u06cc\u0646 \u06a9\u0627\u0631\u060c \u06a9\u062f \u0628\u0631\u0646\u0627\u0645\u0647 Angular \u062e\u0648\u062f \u0631\u0627 \u0628\u0627 \u0627\u0646\u062a\u0632\u0627\u0639 \u0645\u06a9\u0627\u0646\u06cc\u0632\u0645 \u0648\u0627\u06a9\u0634\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0648\u0627\u06a9\u0646\u0634\u06cc \u062f\u0631 \u06cc\u06a9 \u0639\u0645\u0644\u06af\u0631 \u0633\u0641\u0627\u0631\u0634\u06cc RxJS \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u062f\u0631 \u0633\u0631\u0627\u0633\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 \u062e\u0648\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f\u060c \u06a9\u0627\u0631\u0622\u0645\u062f\u062a\u0631 \u0648 \u0642\u0627\u0628\u0644 \u0646\u06af\u0647\u062f\u0627\u0631\u06cc \u062a\u0631 \u06a9\u0631\u062f\u0647 \u0627\u06cc\u062f.  \u0627\u06cc\u0646 \u0646\u0647 \u062a\u0646\u0647\u0627 \u06a9\u062f \u0634\u0645\u0627 \u0631\u0627 DRY \u0646\u06af\u0647 \u0645\u06cc\u200c\u062f\u0627\u0631\u062f (\u062e\u0648\u062f\u062a\u0627\u0646 \u0631\u0627 \u062a\u06a9\u0631\u0627\u0631 \u0646\u06a9\u0646\u06cc\u062f) \u0628\u0644\u06a9\u0647 \u062f\u0631\u06a9 \u0648 \u0645\u062f\u06cc\u0631\u06cc\u062a \u0622\u0646 \u0631\u0627 \u0622\u0633\u0627\u0646\u200c\u062a\u0631 \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%D8%AD%D8%AA%DB%8C_%D8%B3%D8%A7%D8%AF%D9%87_%D8%AA%D8%B1_%DA%A9%D8%B1%D8%AF%D9%86_%D8%A2%D9%86_%D8%A8%D8%A7_ngxLoadWith\"><\/span>\n<p>  \u062d\u062a\u06cc \u0633\u0627\u062f\u0647 \u062a\u0631 \u06a9\u0631\u062f\u0646 \u0622\u0646 \u0628\u0627 <code>*ngxLoadWith<\/code><br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0627\u06a9\u0646\u0648\u0646\u060c \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0627\u0632 \u062e\u0648\u062f \u0628\u067e\u0631\u0633\u06cc\u062f \u06a9\u0647 \u0622\u06cc\u0627 \u0631\u0627\u0647 \u0633\u0627\u062f\u0647 \u062a\u0631\u06cc \u0628\u0631\u0627\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u0647\u0645\u0647 \u0627\u06cc\u0646\u0647\u0627 \u0628\u062f\u0648\u0646 \u0633\u0631 \u0648 \u06a9\u0627\u0631 \u062f\u0627\u0634\u062a\u0646 \u0628\u0627 \u0639\u0645\u0644\u06af\u0631\u0647\u0627\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647 RxJS \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u06cc\u0627 \u062e\u06cc\u0631.  \u062e\u0628\u0631 \u062e\u0648\u0628!  \u0645\u0639\u0631\u0641\u06cc <code>*ngxLoadWith<\/code> \u062f\u0633\u062a\u0648\u0631\u0627\u0644\u0639\u0645\u0644\u060c \u06a9\u0647 \u0631\u0648\u06cc\u06a9\u0631\u062f \u0633\u0627\u062f\u0647 \u062a\u0631\u06cc \u0628\u0631\u0627\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u0648\u0636\u0639\u06cc\u062a \u0647\u0627\u06cc \u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc \u062f\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 Angular \u0634\u0645\u0627 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u062f\u0647\u062f.<\/p>\n<p>\u0628\u0631\u0627\u06cc \u0634\u0631\u0648\u0639\u060c \u0628\u0627\u06cc\u062f \u0622\u0646 \u0631\u0627 \u0646\u0635\u0628 \u06a9\u0646\u06cc\u062f <code>*ngxLoadWith<\/code> \u0628\u0633\u062a\u0647 \u0628\u0646\u062f\u06cc  \u062f\u0633\u062a\u0648\u0631 \u0632\u06cc\u0631 \u0631\u0627 \u0627\u062c\u0631\u0627 \u06a9\u0646\u06cc\u062f:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>npm install ngx-load-with\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>\u067e\u0633 \u0627\u0632 \u0646\u0635\u0628\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0632 <code>*ngxLoadWith<\/code> \u062f\u0633\u062a\u0648\u0631\u0627\u0644\u0639\u0645\u0644 \u062f\u0631 \u06a9\u0627\u0645\u067e\u0648\u0646\u0646\u062a Angular \u0634\u0645\u0627 \u0628\u0647 \u0627\u06cc\u0646 \u0635\u0648\u0631\u062a \u0627\u0633\u062a:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight typescript\"><code><span class=\"p\">@<\/span><span class=\"nd\">Component<\/span><span class=\"p\">({<\/span>\n  <span class=\"na\">selector<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">my-app<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\n  <span class=\"na\">standalone<\/span><span class=\"p\">:<\/span> <span class=\"kc\">true<\/span><span class=\"p\">,<\/span>\n  <span class=\"na\">imports<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"nx\">CommonModule<\/span><span class=\"p\">,<\/span> <span class=\"nx\">ReactiveFormsModule<\/span><span class=\"p\">,<\/span> <span class=\"nx\">NgxLoadWithModule<\/span><span class=\"p\">],<\/span>\n  <span class=\"na\">template<\/span><span class=\"p\">:<\/span> <span class=\"s2\">`\n    &lt;input [formControl]=\"searchControl\" \/&gt;\n\n    &lt;div\n      *ngxLoadWith=\"\n        getResult as data;\n        args: searchControl.value;\n        loadingTemplate: loading;\n        errorTemplate: error\n      \"\n    &gt;\n      {{ data }}\n    &lt;\/div&gt;\n    &lt;ng-template #loading&gt;Loading...&lt;\/ng-template&gt;\n    &lt;ng-template #error let-error&gt;{{ error.message }}&lt;\/ng-template&gt;\n  `<\/span><span class=\"p\">,<\/span>\n<span class=\"p\">})<\/span>\n<span class=\"k\">export<\/span> <span class=\"kd\">class<\/span> <span class=\"nx\">App<\/span> <span class=\"p\">{<\/span>\n  <span class=\"nx\">searchControl<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">FormControl<\/span><span class=\"p\">(<\/span><span class=\"dl\">\"\"<\/span><span class=\"p\">);<\/span>\n\n  <span class=\"nx\">getResult<\/span> <span class=\"o\">=<\/span> <span class=\"p\">(<\/span><span class=\"nx\">keywords<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span>\n    <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">http<\/span><span class=\"p\">.<\/span><span class=\"kd\">get<\/span><span class=\"p\">(<\/span><span class=\"dl\">\"<\/span><span class=\"s2\">\/api\/search<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span> <span class=\"na\">params<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">q<\/span><span class=\"p\">:<\/span> <span class=\"nx\">keywords<\/span> <span class=\"p\">}<\/span> <span class=\"p\">});<\/span>\n\n  <span class=\"k\">private<\/span> <span class=\"nx\">http<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">inject<\/span><span class=\"p\">(<\/span><span class=\"nx\">HttpClient<\/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>\u0628\u06cc\u0627\u06cc\u06cc\u062f \u0622\u0646 \u0631\u0627 \u062a\u062c\u0632\u06cc\u0647 \u06a9\u0646\u06cc\u0645.  \u0645\u0627 \u0628\u0647 \u0633\u0627\u062f\u06af\u06cc \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u0628\u0647 \u0646\u0627\u0645 \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc \u06a9\u0646\u06cc\u0645 <code>getResult<\/code> \u06a9\u0647 \u0637\u0648\u0644 \u0645\u06cc \u06a9\u0634\u062f <code>keywords<\/code> \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u0648 \u06cc\u06a9 \u062f\u0631\u062e\u0648\u0627\u0633\u062a HTTP \u0631\u0627 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f.  \u0633\u067e\u0633 \u0627\u06cc\u0646 \u062a\u0627\u0628\u0639 \u0631\u0627 \u0628\u0647 <code>*ngxLoadWith<\/code> \u0628\u062e\u0634\u0646\u0627\u0645\u0647\u060c \u0647\u0645\u0631\u0627\u0647 \u0628\u0627 \u0627\u0631\u0632\u0634 <code>searchControl.value<\/code> \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 <code>args<\/code> \u0648\u0631\u0648\u062f\u06cc<\/p>\n<p>\u062f\u0631 \u062d\u0627\u0644 \u062d\u0627\u0636\u0631 \u0647\u0631 \u0632\u0645\u0627\u0646 \u06a9\u0647 <code>searchControl<\/code> \u062a\u063a\u06cc\u06cc\u0631 \u0627\u0631\u0632\u0634\u060c <code>getResult<\/code> \u062a\u0627\u0628\u0639 \u0628\u0627 \u0645\u0642\u062f\u0627\u0631 \u062c\u062f\u06cc\u062f \u0641\u0631\u0627\u062e\u0648\u0627\u0646\u06cc \u0645\u06cc \u0634\u0648\u062f.  \u0631\u0627 <code>*ngxLoadWith<\/code> \u062f\u0633\u062a\u0648\u0631\u0627\u0644\u0639\u0645\u0644 \u0633\u067e\u0633 \u062f\u0631 \u0646\u062a\u06cc\u062c\u0647 \u062a\u0627\u0628\u0639 \u0645\u0634\u062a\u0631\u06a9 \u0645\u06cc \u0634\u0648\u062f \u0648 \u0646\u062a\u06cc\u062c\u0647 \u0631\u0627 \u062f\u0631 \u0642\u0627\u0644\u0628 \u0646\u0645\u0627\u06cc\u0634 \u0645\u06cc \u062f\u0647\u062f.<\/p>\n<p>\u0633\u067e\u0633 \u062f\u0648 \u0642\u0627\u0644\u0628 \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc \u06a9\u0646\u06cc\u0645: <code>loading<\/code> \u0648 <code>error<\/code>.  \u0627\u06cc\u0646 \u0627\u0644\u06af\u0648\u0647\u0627 \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 <code>getResult<\/code> \u0639\u0645\u0644\u06a9\u0631\u062f \u062f\u0631 \u062d\u0627\u0644 \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u0627\u0633\u062a \u06cc\u0627 \u062f\u0627\u0631\u0627\u06cc \u062e\u0637\u0627 \u0627\u0633\u062a.<\/p>\n<p>\u062e\u0648\u062f\u0634\u0647!  \u0627\u06a9\u0646\u0648\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0628\u0647 \u0631\u0627\u062d\u062a\u06cc \u0648 \u0628\u0627 \u062e\u06cc\u0627\u0644 \u0631\u0627\u062d\u062a \u0648\u0636\u0639\u06cc\u062a \u0647\u0627\u06cc \u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc \u0631\u0627 \u062f\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 Angular \u062e\u0648\u062f \u0628\u062f\u0648\u0646 \u0646\u06cc\u0627\u0632 \u0628\u0647 \u0633\u0631 \u0648 \u06a9\u0627\u0631 \u062f\u0627\u0634\u062a\u0646 \u0628\u0627 \u0627\u067e\u0631\u0627\u062a\u0648\u0631\u0647\u0627\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647 RxJS \u0645\u062f\u06cc\u0631\u06cc\u062a \u06a9\u0646\u06cc\u062f.<\/p>\n<p>\u0622\u0645\u0627\u062f\u0647 \u0647\u0633\u062a\u06cc\u062f \u0622\u0646 \u0631\u0627 \u0627\u0645\u062a\u062d\u0627\u0646 \u06a9\u0646\u06cc\u062f\u061f  \u06a9\u062f \u0645\u0646\u0628\u0639 \u0631\u0627 \u062f\u0631 github.com\/rensjaspers\/ngx-load-with \u0628\u0631\u0631\u0633\u06cc \u06a9\u0646\u06cc\u062f.  \u0627\u06af\u0631 \u067e\u06cc\u062f\u0627 \u06a9\u0631\u062f\u06cc <code>*ngxLoadWith<\/code> \u0645\u0641\u06cc\u062f \u0627\u0633\u062a\u060c \u0641\u0631\u0627\u0645\u0648\u0634 \u0646\u06a9\u0646\u06cc\u062f \u06a9\u0647 \u062f\u0631 Github \u0628\u0647 \u0622\u0646 \u0633\u062a\u0627\u0631\u0647 \u0628\u062f\u0647\u06cc\u062f.  \u0645\u0627 \u062f\u0648\u0633\u062a \u062f\u0627\u0631\u06cc\u0645 \u0646\u0638\u0631\u0627\u062a \u0648 \u062a\u062c\u0631\u0628\u06cc\u0627\u062a \u0634\u0645\u0627 \u0631\u0627 \u062f\u0631 \u0645\u0648\u0631\u062f \u0627\u06cc\u0646 \u062f\u0633\u062a\u0648\u0631\u0627\u0644\u0639\u0645\u0644 \u0628\u0634\u0646\u0648\u06cc\u0645!<\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u0647\u0646\u06af\u0627\u0645\u06cc \u06a9\u0647 \u0628\u0627 Angular \u0628\u0631\u0646\u0627\u0645\u0647 \u0645\u06cc\u200c\u0633\u0627\u0632\u06cc\u062f\u060c \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u0686\u06cc\u0632\u06cc \u062f\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 \u0634\u0645\u0627 \u062a\u063a\u06cc\u06cc\u0631 \u0645\u06cc\u200c\u06a9\u0646\u062f\u060c \u0627\u063a\u0644\u0628 \u0646\u06cc\u0627\u0632 \u0628\u0647 \u062f\u0631\u06cc\u0627\u0641\u062a \u062f\u0627\u062f\u0647 \u062f\u0627\u0631\u06cc\u062f. \u0627\u06cc\u0646 \u062a\u063a\u06cc\u06cc\u0631\u0627\u062a \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0646\u0627\u0634\u06cc \u0627\u0632 \u0639\u0645\u0644\u06a9\u0631\u062f \u06a9\u0627\u0631\u0628\u0631\u060c \u0645\u0627\u0646\u0646\u062f \u062a\u0627\u06cc\u067e \u06a9\u0631\u062f\u0646 \u062f\u0631 \u06a9\u0627\u062f\u0631 \u062c\u0633\u062a\u062c\u0648\u060c \u06cc\u0627 \u0627\u0632 \u062e\u0648\u062f \u0628\u0631\u0646\u0627\u0645\u0647\u060c \u0645\u0627\u0646\u0646\u062f \u062a\u063a\u06cc\u06cc\u0631 \u062f\u0631 \u067e\u0627\u0631\u0627\u0645\u062a\u0631\u0647\u0627\u06cc \u0645\u0633\u06cc\u0631 \u0628\u0627\u0634\u062f. \u0627\u0645\u0631\u0648\u0632\u060c \u0645\u0627 \u0642\u0635\u062f \u062f\u0627\u0631\u06cc\u0645 \u0686\u0646\u062f \u0631\u0648\u0634 \u0645\u0648\u062b\u0631 \u0628\u0631\u0627\u06cc \u0648\u0627\u06a9\u0634\u06cc \u0648\u0627\u06a9\u0646\u0634\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627 &hellip;<\/p>\n","protected":false},"author":2,"featured_media":29513,"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-29512","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\/29512","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=29512"}],"version-history":[{"count":0,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts\/29512\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/media\/29513"}],"wp:attachment":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/media?parent=29512"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/categories?post=29512"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/tags?post=29512"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}