{"id":11253,"date":"2023-12-29T14:06:10","date_gmt":"2023-12-29T10:36:10","guid":{"rendered":"https:\/\/rasanegar.com\/blog\/%d8%aa%d8%a8%d8%af%db%8c%d9%84-callback-api%d9%87%d8%a7-%d8%a8%d9%87-promises-%d8%af%d8%b1-node-jsjavascript%d8%8c-%d8%a7%da%af%d8%b1%da%86%d9%87-%d9%81%d9%82%d8%b7-%d8%aa%da%a9-%d8%b1%d8%b4%d8%aa\/"},"modified":"2023-12-29T14:06:10","modified_gmt":"2023-12-29T10:36:10","slug":"%d8%aa%d8%a8%d8%af%db%8c%d9%84-callback-api%d9%87%d8%a7-%d8%a8%d9%87-promises-%d8%af%d8%b1-node-jsjavascript%d8%8c-%d8%a7%da%af%d8%b1%da%86%d9%87-%d9%81%d9%82%d8%b7-%d8%aa%da%a9-%d8%b1%d8%b4%d8%aa","status":"publish","type":"post","link":"https:\/\/rasanegaar.com\/blog\/%d8%aa%d8%a8%d8%af%db%8c%d9%84-callback-api%d9%87%d8%a7-%d8%a8%d9%87-promises-%d8%af%d8%b1-node-jsjavascript%d8%8c-%d8%a7%da%af%d8%b1%da%86%d9%87-%d9%81%d9%82%d8%b7-%d8%aa%da%a9-%d8%b1%d8%b4%d8%aa\/","title":{"rendered":"\u062a\u0628\u062f\u06cc\u0644 Callback API\u0647\u0627 \u0628\u0647 Promises \u062f\u0631 Node.jsJavaScript\u060c \u0627\u06af\u0631\u0686\u0647 \u0641\u0642\u0637 \u062a\u06a9 \u0631\u0634\u062a\u0647 \u0627\u06cc \u0627\u0633\u062a\u060c \u0627\u0645\u0627 \u06cc\u06a9 \u0632\u0628\u0627\u0646 \u0646\u0627\u0647\u0645\u0632\u0645\u0627\u0646 \u0627\u0633\u062a.  \u062f\u0631 \u0627\u0628\u062a\u062f\u0627 \u0641\u0642\u0637 \u0627\u0632 callback \u0628\u0631\u0627\u06cc \u06a9\u0627\u0631\u0647\u0627\u06cc \u0646\u0627\u0647\u0645\u0632\u0645\u0627\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0631\u062f\u060c \u0627\u0645\u0627 ES6 \u0645\u0641\u0647\u0648\u0645 \u06cc\u06a9 \u0648\u0639\u062f\u0647 \u0631\u0627 \u0645\u0639\u0631\u0641\u06cc \u06a9\u0631\u062f \u06a9\u0647 \u06a9\u0627\u0631 \u0628\u0627 \u0627\u06cc\u0646 \u0648\u0638\u0627\u06cc\u0641 \u0631\u0627 \u0628\u0633\u06cc\u0627\u0631 \u0622\u0633\u0627\u0646 \u06a9\u0631\u062f.  \u0627\u0645\u0627 \u0645\u0634\u06a9\u0644 \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u06a9\u062a\u0627\u0628\u062e\u0627\u0646\u0647\u200c\u0647\u0627 \u0648 API\u0647\u0627\u06cc \u0627\u0648\u0644\u06cc\u0647 \u0627\u0632 callback \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f \u0648&#8230;"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\"><p class=\"ez-toc-title\" style=\"cursor:inherit\">\u0633\u0631\u0641\u0635\u0644\u0647\u0627\u06cc \u0645\u0637\u0644\u0628<\/p>\n<\/div><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%aa%d8%a8%d8%af%db%8c%d9%84-callback-api%d9%87%d8%a7-%d8%a8%d9%87-promises-%d8%af%d8%b1-node-jsjavascript%d8%8c-%d8%a7%da%af%d8%b1%da%86%d9%87-%d9%81%d9%82%d8%b7-%d8%aa%da%a9-%d8%b1%d8%b4%d8%aa\/#%d9%85%d8%b9%d8%b1%d9%81%db%8c\" >\u0645\u0639\u0631\u0641\u06cc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%aa%d8%a8%d8%af%db%8c%d9%84-callback-api%d9%87%d8%a7-%d8%a8%d9%87-promises-%d8%af%d8%b1-node-jsjavascript%d8%8c-%d8%a7%da%af%d8%b1%da%86%d9%87-%d9%81%d9%82%d8%b7-%d8%aa%da%a9-%d8%b1%d8%b4%d8%aa\/#%d9%be%d8%a7%d8%b3%d8%ae_%d8%a8%d9%87_%d8%aa%d9%85%d8%a7%d8%b3_%d8%af%d8%b1_%d9%85%d9%82%d8%a7%d8%a8%d9%84_%d9%88%d8%b9%d8%af%d9%87_%d9%87%d8%a7\" >\u067e\u0627\u0633\u062e \u0628\u0647 \u062a\u0645\u0627\u0633 \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 \u0648\u0639\u062f\u0647 \u0647\u0627<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%aa%d8%a8%d8%af%db%8c%d9%84-callback-api%d9%87%d8%a7-%d8%a8%d9%87-promises-%d8%af%d8%b1-node-jsjavascript%d8%8c-%d8%a7%da%af%d8%b1%da%86%d9%87-%d9%81%d9%82%d8%b7-%d8%aa%da%a9-%d8%b1%d8%b4%d8%aa\/#%d8%b1%d9%88%d8%b4_%d8%aa%d8%a8%d8%af%db%8c%d9%84_callbacks_api%d9%87%d8%a7_%d8%a8%d9%87_promises\" >\u0631\u0648\u0634 \u062a\u0628\u062f\u06cc\u0644 Callbacks API\u0647\u0627 \u0628\u0647 Promises<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%aa%d8%a8%d8%af%db%8c%d9%84-callback-api%d9%87%d8%a7-%d8%a8%d9%87-promises-%d8%af%d8%b1-node-jsjavascript%d8%8c-%d8%a7%da%af%d8%b1%da%86%d9%87-%d9%81%d9%82%d8%b7-%d8%aa%da%a9-%d8%b1%d8%b4%d8%aa\/#%d8%a8%d8%a7_%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87_%d8%a7%d8%b2_%da%a9%d8%aa%d8%a7%d8%a8%d8%ae%d8%a7%d9%86%d9%87_bluebird\" >\u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u06a9\u062a\u0627\u0628\u062e\u0627\u0646\u0647 Bluebird<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%aa%d8%a8%d8%af%db%8c%d9%84-callback-api%d9%87%d8%a7-%d8%a8%d9%87-promises-%d8%af%d8%b1-node-jsjavascript%d8%8c-%d8%a7%da%af%d8%b1%da%86%d9%87-%d9%81%d9%82%d8%b7-%d8%aa%da%a9-%d8%b1%d8%b4%d8%aa\/#%d8%aa%d8%a8%d8%af%db%8c%d9%84_%d8%aa%d9%85%d8%a7%d8%b3_%d9%87%d8%a7%db%8c_%d8%aa%d9%88_%d8%af%d8%b1_%d8%aa%d9%88_%d8%a8%d9%87_promises\" >\u062a\u0628\u062f\u06cc\u0644 \u062a\u0645\u0627\u0633 \u0647\u0627\u06cc \u062a\u0648 \u062f\u0631 \u062a\u0648 \u0628\u0647 Promises<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%aa%d8%a8%d8%af%db%8c%d9%84-callback-api%d9%87%d8%a7-%d8%a8%d9%87-promises-%d8%af%d8%b1-node-jsjavascript%d8%8c-%d8%a7%da%af%d8%b1%da%86%d9%87-%d9%81%d9%82%d8%b7-%d8%aa%da%a9-%d8%b1%d8%b4%d8%aa\/#%d9%86%d8%aa%db%8c%d8%ac%d9%87\" >\u0646\u062a\u06cc\u062c\u0647<\/a><\/li><\/ul><\/nav><\/div>\n<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">\u0632\u0645\u0627\u0646 \u0644\u0627\u0632\u0645 \u0628\u0631\u0627\u06cc \u0645\u0637\u0627\u0644\u0639\u0647: <\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">\u062f\u0642\u06cc\u0642\u0647<\/span><\/span><p> <br \/>\n<\/p>\n<div class=\"content\"><noscript><\/p>\n<style>.lazyload-placeholder { display: none;  }<\/style>\n<p><\/noscript><\/p>\n<h2 id=\"introduction\"><span class=\"ez-toc-section\" id=\"%d9%85%d8%b9%d8%b1%d9%81%db%8c\"><\/span>\u0645\u0639\u0631\u0641\u06cc<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a\u060c \u0627\u06af\u0631\u0686\u0647 \u062a\u0646\u0647\u0627 \u062a\u06a9 \u0631\u0634\u062a\u0647 \u0627\u06cc \u0627\u0633\u062a\u060c \u0627\u0645\u0627 \u06cc\u06a9 \u0632\u0628\u0627\u0646 \u0646\u0627\u0647\u0645\u0632\u0645\u0627\u0646 \u0627\u0633\u062a.  \u062f\u0631 \u0627\u0628\u062a\u062f\u0627 \u0641\u0642\u0637 \u0627\u0632 callback \u0628\u0631\u0627\u06cc \u06a9\u0627\u0631\u0647\u0627\u06cc \u0646\u0627\u0647\u0645\u0632\u0645\u0627\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0631\u062f\u060c \u0627\u0645\u0627 ES6 \u0645\u0641\u0647\u0648\u0645 \u06cc\u06a9 \u0648\u0639\u062f\u0647 \u0631\u0627 \u0645\u0639\u0631\u0641\u06cc \u06a9\u0631\u062f \u06a9\u0647 \u06a9\u0627\u0631 \u0628\u0627 \u0627\u06cc\u0646 \u0648\u0638\u0627\u06cc\u0641 \u0631\u0627 \u0628\u0633\u06cc\u0627\u0631 \u0622\u0633\u0627\u0646 \u06a9\u0631\u062f.<\/p>\n<p>\u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u0645\u0634\u06a9\u0644 \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u06a9\u062a\u0627\u0628\u062e\u0627\u0646\u0647\u200c\u0647\u0627 \u0648 API\u0647\u0627\u06cc \u0627\u0648\u0644\u06cc\u0647 \u0627\u0632 callback \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f\u060c \u0648 \u0647\u0645\u06cc\u0634\u0647 \u0631\u0627\u0647 \u0633\u0627\u062f\u0647\u200c\u0627\u06cc \u0628\u0631\u0627\u06cc \u062a\u0628\u062f\u06cc\u0644 \u0622\u0646\u200c\u0647\u0627 \u0628\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0648\u0639\u062f\u0647\u200c\u0647\u0627 \u0628\u0631\u0627\u06cc \u06a9\u0627\u0631 \u0628\u0647\u062a\u0631 \u0628\u0627 \u0628\u0642\u06cc\u0647 \u06a9\u062f \u0634\u0645\u0627 \u0648\u062c\u0648\u062f \u0646\u062f\u0627\u0631\u062f.<\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0642\u0635\u062f \u062f\u0627\u0631\u06cc\u0645 \u0634\u0645\u0627 \u0631\u0627 \u062f\u0631 \u0627\u06cc\u0646 \u0632\u0645\u06cc\u0646\u0647 \u0631\u0627\u0647\u0646\u0645\u0627\u06cc\u06cc \u06a9\u0646\u06cc\u0645 process \u062a\u0628\u062f\u06cc\u0644 \u06cc\u06a9 Callback API \u0645\u0648\u062c\u0648\u062f \u0628\u0647 \u0648\u0639\u062f\u0647.<\/p>\n<h2 id=\"callbacksvspromises\"><span class=\"ez-toc-section\" id=\"%d9%be%d8%a7%d8%b3%d8%ae_%d8%a8%d9%87_%d8%aa%d9%85%d8%a7%d8%b3_%d8%af%d8%b1_%d9%85%d9%82%d8%a7%d8%a8%d9%84_%d9%88%d8%b9%d8%af%d9%87_%d9%87%d8%a7\"><\/span>\u067e\u0627\u0633\u062e \u0628\u0647 \u062a\u0645\u0627\u0633 \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 \u0648\u0639\u062f\u0647 \u0647\u0627<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a\u060c callback \u062a\u0627\u0628\u0639\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0622\u0631\u06af\u0648\u0645\u0627\u0646 \u0628\u0647 \u062a\u0627\u0628\u0639 \u062f\u06cc\u06af\u0631\u06cc \u0645\u0646\u062a\u0642\u0644 \u0645\u06cc\u200c\u0634\u0648\u062f\u060c \u06a9\u0647 \u0633\u067e\u0633 \u062f\u0631 \u062f\u0627\u062e\u0644 \u062a\u0627\u0628\u0639 \u062e\u0627\u0631\u062c\u06cc \u0628\u0631\u0627\u06cc \u062a\u06a9\u0645\u06cc\u0644 \u0646\u0648\u0639\u06cc \u0639\u0645\u0644 \u0641\u0631\u0627\u062e\u0648\u0627\u0646\u06cc \u0645\u06cc\u200c\u0634\u0648\u062f.  \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u06cc\u06a9 \u0645\u062b\u0627\u0644 \u0633\u0627\u062f\u0647 \u0627\u0632 \u067e\u0627\u0633\u062e \u0628\u0647 \u062a\u0645\u0627\u0633 \u0622\u0648\u0631\u062f\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-function\"><span class=\"hljs-keyword\">function<\/span> <span class=\"hljs-title\">greeting<\/span>(<span class=\"hljs-params\">name, callback<\/span>) <\/span>{\n    <span class=\"hljs-built_in\">console<\/span>.log(<span class=\"hljs-string\">'Hello '<\/span> + name);\n    callback();\n}\n\ngreeting(<span class=\"hljs-string\">'John'<\/span>, <span class=\"hljs-function\"><span class=\"hljs-keyword\">function<\/span>(<span class=\"hljs-params\"><\/span>) <\/span>{\n    <span class=\"hljs-built_in\">console<\/span>.log(<span class=\"hljs-string\">'The callback was invoked inside of `greeting()`!'<\/span>);\n});\n<\/code><\/pre>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u062b\u0627\u0644\u060c <code>greeting<\/code> \u062a\u0627\u0628\u0639 \u06cc\u06a9 \u0646\u0627\u0645 \u0648 \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u0641\u0631\u0627\u062e\u0648\u0627\u0646\u06cc \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u0645\u06cc \u06af\u06cc\u0631\u062f.  \u0627\u0628\u062a\u062f\u0627 \u06cc\u06a9 \u067e\u06cc\u0627\u0645 \u062a\u0628\u0631\u06cc\u06a9 \u062b\u0628\u062a \u0645\u06cc\u200c\u06a9\u0646\u062f \u0648 \u0633\u067e\u0633 \u0639\u0645\u0644\u06a9\u0631\u062f \u067e\u0627\u0633\u062e \u0628\u0647 \u062a\u0645\u0627\u0633 \u0631\u0627 \u0641\u0631\u0627\u062e\u0648\u0627\u0646\u06cc \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/p>\n<p>\u0648\u0639\u062f\u0647 \u0647\u0627\u060c \u0631\u0648\u06cc \u0627\u0632 \u0633\u0648\u06cc \u062f\u06cc\u06af\u0631\u060c \u0645\u0642\u062f\u0627\u0631\u06cc \u0631\u0627 \u0646\u0634\u0627\u0646 \u0645\u06cc\u200c\u062f\u0647\u062f \u06a9\u0647 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0647\u0646\u0648\u0632 \u062f\u0631 \u062f\u0633\u062a\u0631\u0633 \u0646\u0628\u0627\u0634\u062f\u060c \u0627\u0645\u0627 \u062f\u0631 \u0645\u0642\u0637\u0639\u06cc \u062f\u0631 \u0622\u06cc\u0646\u062f\u0647 \u062d\u0644 \u0634\u0648\u062f \u06cc\u0627 \u0628\u0647 \u0637\u0648\u0631 \u06a9\u0644\u06cc \u0631\u062f \u0634\u0648\u062f.  \u0639\u0647\u062f \u0633\u0647 \u062d\u0627\u0644\u062a \u062f\u0627\u0631\u062f: \u0645\u0639\u0644\u0642\u060c \u0648\u0641\u0627 \u0634\u062f\u0647 \u0648 \u0631\u062f \u0634\u062f\u0647.  \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u06cc\u06a9 \u0648\u0639\u062f\u0647 \u0645\u0639\u0627\u062f\u0644 \u0628\u0631\u0627\u06cc \u0645\u062b\u0627\u0644 \u0642\u0628\u0644\u06cc callback \u0622\u0648\u0631\u062f\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">let<\/span> greeting = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-built_in\">Promise<\/span>(<span class=\"hljs-function\"><span class=\"hljs-keyword\">function<\/span>(<span class=\"hljs-params\">resolve, reject<\/span>) <\/span>{\n    <span class=\"hljs-keyword\">let<\/span> name = <span class=\"hljs-string\">'John'<\/span>;\n    <span class=\"hljs-built_in\">console<\/span>.log(<span class=\"hljs-string\">'Hello '<\/span> + name);\n    resolve();\n});\n\ngreeting.then(<span class=\"hljs-function\"><span class=\"hljs-keyword\">function<\/span>(<span class=\"hljs-params\"><\/span>) <\/span>{\n    <span class=\"hljs-built_in\">console<\/span>.log(<span class=\"hljs-string\">'The promise was fulfilled!'<\/span>);\n});\n<\/code><\/pre>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u0648\u0631\u062f\u060c <code>greeting<\/code> \u0648\u0639\u062f\u0647 \u067e\u06cc\u0627\u0645\u06cc \u0631\u0627 \u062b\u0628\u062a \u0645\u06cc \u06a9\u0646\u062f \u0648 \u0633\u067e\u0633 \u0628\u0627 \u0622\u0646 \u062a\u0645\u0627\u0633 \u0645\u06cc \u06af\u06cc\u0631\u062f <code>resolve<\/code> \u062a\u0627\u0628\u0639.  \u0631\u0627 <code>then<\/code> \u0627\u06cc\u0646 \u0631\u0648\u0634 \u0628\u0631\u0627\u06cc \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0631\u06cc\u0632\u06cc \u062a\u0645\u0627\u0633 \u067e\u0633 \u0627\u0632 \u062a\u062d\u0642\u0642 \u0648\u0639\u062f\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/p>\n<p>\u0648\u0639\u062f\u0647\u200c\u0647\u0627 \u0628\u0647 \u0686\u0646\u062f \u062f\u0644\u06cc\u0644 \u0642\u0648\u06cc\u200c\u062a\u0631 \u0627\u0632 \u062a\u0645\u0627\u0633\u200c\u0647\u0627\u06cc \u0628\u0631\u06af\u0634\u062a\u06cc \u0647\u0633\u062a\u0646\u062f.  \u0622\u0646\u0647\u0627 \u0627\u0645\u06a9\u0627\u0646 \u06a9\u0646\u062a\u0631\u0644 \u0628\u0647\u062a\u0631 \u0628\u0631 \u062c\u0631\u06cc\u0627\u0646 \u0639\u0645\u0644\u06cc\u0627\u062a \u0646\u0627\u0647\u0645\u0632\u0645\u0627\u0646 \u0631\u0627 \u0641\u0631\u0627\u0647\u0645 \u0645\u06cc \u06a9\u0646\u0646\u062f\u060c \u0645\u062f\u06cc\u0631\u06cc\u062a \u0628\u0647\u062a\u0631 \u062e\u0637\u0627 \u0631\u0627 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u062f\u0647\u0646\u062f \u0648 \u0628\u0647 \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632 \u062c\u0647\u0646\u0645 \u0628\u062f\u0646\u0627\u0645 \u067e\u0627\u0633\u062e \u0628\u0647 \u062a\u0645\u0627\u0633 \u06a9\u0645\u06a9 \u0645\u06cc \u06a9\u0646\u0646\u062f.<\/p>\n<p>\u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u062a\u0645\u0627\u0633\u200c\u0647\u0627\u06cc \u0628\u0631\u06af\u0634\u062a\u06cc \u0633\u0627\u062f\u0647 \u0648 \u0642\u0627\u0628\u0644 \u062f\u0631\u06a9 \u0647\u0633\u062a\u0646\u062f\u060c \u0648\u0639\u062f\u0647\u200c\u0647\u0627 \u06a9\u0646\u062a\u0631\u0644 \u0648 \u0627\u0646\u0639\u0637\u0627\u0641\u200c\u067e\u0630\u06cc\u0631\u06cc \u0628\u06cc\u0634\u062a\u0631\u06cc \u0631\u0627 \u0647\u0646\u06af\u0627\u0645 \u0628\u0631\u062e\u0648\u0631\u062f \u0628\u0627 \u0639\u0645\u0644\u06cc\u0627\u062a \u0646\u0627\u0647\u0645\u0632\u0645\u0627\u0646 \u0641\u0631\u0627\u0647\u0645 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f.  \u0622\u0646\u0647\u0627 \u0647\u0645\u0686\u0646\u06cc\u0646 \u06a9\u062f\u0647\u0627\u06cc \u0634\u0645\u0627 \u0631\u0627 \u067e\u0627\u06a9\u200c\u062a\u0631 \u0648 \u062e\u0648\u0627\u0646\u0627\u062a\u0631 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f\u060c \u0628\u0647 \u0647\u0645\u06cc\u0646 \u062f\u0644\u06cc\u0644 \u0627\u0633\u062a \u06a9\u0647 \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u062a\u0648\u0633\u0639\u0647\u200c\u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u0622\u0646\u200c\u0647\u0627 \u0631\u0627 \u0628\u0647 callback \u062a\u0631\u062c\u06cc\u062d \u0645\u06cc\u200c\u062f\u0647\u0646\u062f.<\/p>\n<h2 id=\"howconvertingcallbacksapistopromises\"><span class=\"ez-toc-section\" id=\"%d8%b1%d9%88%d8%b4_%d8%aa%d8%a8%d8%af%db%8c%d9%84_callbacks_api%d9%87%d8%a7_%d8%a8%d9%87_promises\"><\/span>\u0631\u0648\u0634 \u062a\u0628\u062f\u06cc\u0644 Callbacks API\u0647\u0627 \u0628\u0647 Promises<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u062a\u0628\u062f\u06cc\u0644 \u06cc\u06a9 callback API \u0628\u0647 \u0648\u0639\u062f\u0647 \u0634\u0627\u0645\u0644 \u0642\u0631\u0627\u0631 \u062f\u0627\u062f\u0646 \u062a\u0627\u0628\u0639 callback \u062f\u0631\u0648\u0646 \u06cc\u06a9 \u0648\u0639\u062f\u0647 \u0627\u0633\u062a.  \u0628\u06cc\u0627\u06cc\u06cc\u062f \u0646\u06af\u0627\u0647\u06cc \u0628\u0647 \u06cc\u06a9 \u0645\u062b\u0627\u0644 \u0628\u06cc\u0646\u062f\u0627\u0632\u06cc\u0645.  \u0641\u0631\u0636 \u06a9\u0646\u06cc\u062f \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u062f\u0627\u0631\u06cc\u0645 <code>getData<\/code> \u06a9\u0647 \u0627\u0632 \u06cc\u06a9 \u0641\u0631\u0627\u062e\u0648\u0627\u0646 \u0628\u0631\u0627\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u0639\u0645\u0644\u06cc\u0627\u062a \u0646\u0627\u0647\u0645\u0632\u0645\u0627\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u062f:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-function\"><span class=\"hljs-keyword\">function<\/span> <span class=\"hljs-title\">getData<\/span>(<span class=\"hljs-params\">callback<\/span>) <\/span>{\n    <span class=\"hljs-comment\">\/\/ Simulate async operation<\/span>\n    <span class=\"hljs-built_in\">setTimeout<\/span>(<span class=\"hljs-function\">() =&gt;<\/span> {\n        <span class=\"hljs-keyword\">const<\/span> data = <span class=\"hljs-string\">'Hello, world!'<\/span>;\n        callback(<span class=\"hljs-literal\">null<\/span>, data);\n    }, <span class=\"hljs-number\">2000<\/span>);\n}\n<\/code><\/pre>\n<p>\u0628\u0631\u0627\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0627\u06cc\u0646 \u062a\u0627\u0628\u0639\u060c \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u06cc\u06a9 \u062a\u0627\u0628\u0639 callback \u0627\u0631\u0633\u0627\u0644 \u0645\u06cc \u06a9\u0646\u06cc\u0645 \u062a\u0627 \u0646\u062a\u06cc\u062c\u0647 \u0631\u0627 \u06a9\u0646\u062a\u0631\u0644 \u06a9\u0646\u062f:<\/p>\n<pre><code class=\"hljs\">getData(<span class=\"hljs-function\">(<span class=\"hljs-params\">err, data<\/span>) =&gt;<\/span> {\n    <span class=\"hljs-keyword\">if<\/span> (err) {\n        <span class=\"hljs-built_in\">console<\/span>.error(err);\n    } <span class=\"hljs-keyword\">else<\/span> {\n        <span class=\"hljs-built_in\">console<\/span>.log(data);  <span class=\"hljs-comment\">\/\/ Outputs: Hello, world!<\/span>\n    }\n});\n<\/code><\/pre>\n<p>\u0628\u0631\u0627\u06cc \u062a\u0628\u062f\u06cc\u0644 \u0627\u06cc\u0646 \u0628\u0647 \u06cc\u06a9 \u0648\u0639\u062f\u0647\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u062c\u062f\u06cc\u062f \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u0645 \u06a9\u0647 \u06cc\u06a9 \u0648\u0639\u062f\u0647 \u0631\u0627 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-function\"><span class=\"hljs-keyword\">function<\/span> <span class=\"hljs-title\">getDataPromise<\/span>(<span class=\"hljs-params\"><\/span>) <\/span>{\n    <span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-built_in\">Promise<\/span>(<span class=\"hljs-function\">(<span class=\"hljs-params\">resolve, reject<\/span>) =&gt;<\/span> {\n        getData(<span class=\"hljs-function\">(<span class=\"hljs-params\">err, data<\/span>) =&gt;<\/span> {\n            <span class=\"hljs-keyword\">if<\/span> (err) {\n                reject(err);\n            } <span class=\"hljs-keyword\">else<\/span> {\n                resolve(data);\n            }\n        });\n    });\n}\n<\/code><\/pre>\n<p>\u062f\u0631 \u062d\u0627\u0644 \u062d\u0627\u0636\u0631\u060c \u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f <code>then<\/code> \u0648 <code>catch<\/code> \u0631\u0648\u0634 \u0647\u0627\u06cc \u0648\u0639\u062f\u0647 \u0628\u0631\u0627\u06cc \u0631\u0633\u06cc\u062f\u06af\u06cc \u0628\u0647 \u0646\u062a\u06cc\u062c\u0647:<\/p>\n<pre><code class=\"hljs\">getDataPromise()\n    .then(<span class=\"hljs-function\"><span class=\"hljs-params\">data<\/span> =&gt;<\/span> <span class=\"hljs-built_in\">console<\/span>.log(data))  <span class=\"hljs-comment\">\/\/ Outputs: Hello, world!<\/span>\n    .catch(<span class=\"hljs-function\"><span class=\"hljs-params\">err<\/span> =&gt;<\/span> <span class=\"hljs-built_in\">console<\/span>.error(err));\n<\/code><\/pre>\n<p>\u0627\u06a9\u0646\u0648\u0646 \u062e\u0648\u0627\u0646\u062f\u0646 \u0648 \u062f\u0631\u06a9 \u0646\u0633\u062e\u0647 \u0645\u0628\u062a\u0646\u06cc \u0628\u0631 \u0648\u0639\u062f\u0647 \u062a\u0627\u0628\u0639 \u0628\u0633\u06cc\u0627\u0631 \u0622\u0633\u0627\u0646\u200c\u062a\u0631 \u0627\u0633\u062a\u060c \u0645\u062e\u0635\u0648\u0635\u0627\u064b \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u0628\u0627 \u0686\u0646\u062f\u06cc\u0646 \u0639\u0645\u0644\u06cc\u0627\u062a \u0646\u0627\u0647\u0645\u0632\u0645\u0627\u0646 \u0633\u0631 \u0648 \u06a9\u0627\u0631 \u062f\u0627\u0631\u06cc\u062f.<\/p>\n<h2 id=\"usingthebluebirdlibrary\"><span class=\"ez-toc-section\" id=\"%d8%a8%d8%a7_%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87_%d8%a7%d8%b2_%da%a9%d8%aa%d8%a7%d8%a8%d8%ae%d8%a7%d9%86%d9%87_bluebird\"><\/span>\u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u06a9\u062a\u0627\u0628\u062e\u0627\u0646\u0647 Bluebird<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Bluebird \u06cc\u06a9 \u06a9\u062a\u0627\u0628\u062e\u0627\u0646\u0647 Promise \u0628\u0627 \u0627\u0645\u06a9\u0627\u0646\u0627\u062a \u06a9\u0627\u0645\u0644 \u0628\u0631\u0627\u06cc \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0627\u0633\u062a.  \u0627\u06cc\u0646 \u0633\u0628\u06a9 \u0648\u0632\u0646\u060c \u0642\u0648\u06cc \u0627\u0633\u062a \u0648 \u0642\u0627\u062f\u0631 \u0628\u0647 \u062a\u0628\u062f\u06cc\u0644 API\u0647\u0627\u06cc \u0645\u0628\u062a\u0646\u06cc \u0628\u0631 \u062a\u0645\u0627\u0633 \u0645\u0648\u062c\u0648\u062f \u0628\u0647 API\u0647\u0627\u06cc \u0645\u0628\u062a\u0646\u06cc \u0628\u0631 Promise \u0627\u0633\u062a.<\/p>\n<p>\u0628\u0631\u0627\u06cc \u0634\u0631\u0648\u0639 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 Bluebird\u060c \u0627\u0628\u062a\u062f\u0627 \u0622\u0646 \u0631\u0627 \u0627\u0632 \u0637\u0631\u06cc\u0642 npm \u0646\u0635\u0628 \u06a9\u0646\u06cc\u062f:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-meta\">$<\/span><span class=\"bash\"> npm install bluebird<\/span>\n<\/code><\/pre>\n<p>\u067e\u0633 \u0627\u0632 \u0646\u0635\u0628\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u06cc\u06a9 API \u0628\u0631\u06af\u0634\u062a \u0628\u0647 \u062a\u0645\u0627\u0633 \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0646 \u0628\u0647 Promise \u062a\u0628\u062f\u06cc\u0644 \u06a9\u0646\u06cc\u062f <code>Promise.promisifyAll()<\/code> \u062a\u0627\u0628\u0639.  \u0627\u06cc\u0646 \u062a\u0627\u0628\u0639 \u06cc\u06a9 \u0634\u06cc \u0631\u0627 \u0645\u06cc \u06af\u06cc\u0631\u062f \u0648 \u06cc\u06a9 \u0634\u06cc \u062c\u062f\u06cc\u062f \u0631\u0627 \u0628\u0627 \u0647\u0645\u0627\u0646 \u0645\u062a\u062f\u0647\u0627 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f\u060c \u0627\u0645\u0627 \u0627\u06cc\u0646 \u0645\u062a\u062f\u0647\u0627 \u0628\u0647 \u062c\u0627\u06cc \u06af\u0631\u0641\u062a\u0646 callback\u060c Promises \u0631\u0627 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f.<\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u06cc\u06a9 \u0645\u062b\u0627\u0644 \u0627\u0633\u0627\u0633\u06cc \u0627\u0633\u062a:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">const<\/span> <span class=\"hljs-built_in\">Promise<\/span> = <span class=\"hljs-built_in\">require<\/span>(<span class=\"hljs-string\">'bluebird'<\/span>);\n<span class=\"hljs-keyword\">const<\/span> fs = <span class=\"hljs-built_in\">Promise<\/span>.promisifyAll(<span class=\"hljs-built_in\">require<\/span>(<span class=\"hljs-string\">'fs'<\/span>));\n\nfs.readFileAsync(<span class=\"hljs-string\">\"example.txt\"<\/span>, <span class=\"hljs-string\">\"utf8\"<\/span>).then(<span class=\"hljs-function\"><span class=\"hljs-keyword\">function<\/span>(<span class=\"hljs-params\">contents<\/span>) <\/span>{\n    <span class=\"hljs-built_in\">console<\/span>.log(contents);\n}).catch(<span class=\"hljs-function\"><span class=\"hljs-keyword\">function<\/span>(<span class=\"hljs-params\">err<\/span>) <\/span>{\n    <span class=\"hljs-built_in\">console<\/span>.error(err);\n});\n<\/code><\/pre>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u06a9\u062f\u060c <code>fs.readFileAsync<\/code> \u06cc\u06a9 \u0646\u0633\u062e\u0647 \u0645\u0628\u062a\u0646\u06cc \u0628\u0631 \u0648\u0639\u062f\u0647 \u0627\u0633\u062a <code>fs.readFile<\/code>.  \u0648\u0642\u062a\u06cc \u0628\u0627 \u0622\u0646 \u062a\u0645\u0627\u0633 \u0645\u06cc\u200c\u06af\u06cc\u0631\u06cc\u062f\u060c \u06cc\u06a9 Promise \u0628\u0631\u0645\u06cc\u200c\u06af\u0631\u062f\u0627\u0646\u062f \u06a9\u0647 \u0628\u0627 \u0645\u062d\u062a\u0648\u0627\u06cc \u0641\u0627\u06cc\u0644 \u0645\u062d\u0642\u0642 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/p>\n<div class=\"alert alert-note\">\n<div class=\"flex\">\n<div class=\"flex-shrink-0 mr-3\"><\/div>\n<div class=\"w-full\">\n<p><strong>\u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f:<\/strong> \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0645\u062a\u0648\u062c\u0647 \u0634\u0648\u06cc\u062f \u06a9\u0647 \u062a\u0645\u0627\u0645 \u0631\u0648\u0634 \u0647\u0627\u06cc \u0646\u0627\u0647\u0645\u0632\u0645\u0627\u0646 \u062f\u0631 <code>fs<\/code> \u0645\u0627\u0698\u0648\u0644 \u0627\u06a9\u0646\u0648\u0646 \u0628\u0647 \u067e\u0627\u06cc\u0627\u0646 \u0645\u06cc \u0631\u0633\u062f <code>Async<\/code>.  \u0627\u06cc\u0646 \u06cc\u06a9 \u0642\u0631\u0627\u0631\u062f\u0627\u062f \u0646\u0627\u0645\u06af\u0630\u0627\u0631\u06cc \u0627\u0633\u062a \u06a9\u0647 \u062a\u0648\u0633\u0637 Bluebird \u0628\u0631\u0627\u06cc \u0645\u062a\u0645\u0627\u06cc\u0632 \u06a9\u0631\u062f\u0646 \u0631\u0648\u0634 \u0647\u0627\u06cc \u0645\u0628\u062a\u0646\u06cc \u0628\u0631 Promise \u0627\u0632 \u0647\u0645\u062a\u0627\u06cc\u0627\u0646 \u0645\u0628\u062a\u0646\u06cc \u0628\u0631 \u062a\u0645\u0627\u0633 \u0622\u0646\u0647\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f.<\/p>\n<\/p><\/div><\/div><\/div>\n<h2 id=\"convertingnestedcallbackstopromises\"><span class=\"ez-toc-section\" id=\"%d8%aa%d8%a8%d8%af%db%8c%d9%84_%d8%aa%d9%85%d8%a7%d8%b3_%d9%87%d8%a7%db%8c_%d8%aa%d9%88_%d8%af%d8%b1_%d8%aa%d9%88_%d8%a8%d9%87_promises\"><\/span>\u062a\u0628\u062f\u06cc\u0644 \u062a\u0645\u0627\u0633 \u0647\u0627\u06cc \u062a\u0648 \u062f\u0631 \u062a\u0648 \u0628\u0647 Promises<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0631\u0633\u06cc\u062f\u06af\u06cc \u0628\u0647 \u062a\u0645\u0627\u0633 \u0647\u0627\u06cc \u062a\u0648\u062f\u0631\u062a\u0648 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0648\u0627\u0642\u0639\u0627\u064b \u062f\u0634\u0648\u0627\u0631 \u0628\u0627\u0634\u062f.  \u0622\u0646\u0647\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u06a9\u062f \u0634\u0645\u0627 \u0631\u0627 \u0628\u0631\u0627\u06cc \u062e\u0648\u0627\u0646\u062f\u0646 \u0648 \u062f\u0631\u06a9 \u0633\u062e\u062a \u06a9\u0646\u0646\u062f.  \u062e\u0648\u0634\u0628\u062e\u062a\u0627\u0646\u0647\u060c Promises \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0647 \u0635\u0627\u0641 \u06a9\u0631\u062f\u0646 \u06a9\u062f \u0634\u0645\u0627 \u0648 \u0642\u0627\u0628\u0644 \u0645\u062f\u06cc\u0631\u06cc\u062a \u06a9\u0631\u062f\u0646 \u0622\u0646 \u06a9\u0645\u06a9 \u06a9\u0646\u062f.<\/p>\n<p>\u0628\u06cc\u0627\u06cc\u06cc\u062f \u0633\u0646\u0627\u0631\u06cc\u0648\u06cc \u062a\u0645\u0627\u0633 \u062a\u0648\u062f\u0631\u062a\u0648 \u0632\u06cc\u0631 \u0631\u0627 \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u0645:<\/p>\n<pre><code class=\"hljs\">getData(<span class=\"hljs-string\">'data.json'<\/span>, <span class=\"hljs-function\"><span class=\"hljs-keyword\">function<\/span>(<span class=\"hljs-params\">err, data<\/span>) <\/span>{\n    <span class=\"hljs-keyword\">if<\/span> (err) {\n        <span class=\"hljs-built_in\">console<\/span>.error(err);\n    } <span class=\"hljs-keyword\">else<\/span> {\n        parseData(data, <span class=\"hljs-function\"><span class=\"hljs-keyword\">function<\/span>(<span class=\"hljs-params\">err, parsedData<\/span>) <\/span>{\n            <span class=\"hljs-keyword\">if<\/span> (err) {\n                <span class=\"hljs-built_in\">console<\/span>.error(err);\n            } <span class=\"hljs-keyword\">else<\/span> {\n                saveData(<span class=\"hljs-string\">'parsedData.json'<\/span>, parsedData, <span class=\"hljs-function\"><span class=\"hljs-keyword\">function<\/span>(<span class=\"hljs-params\">err<\/span>) <\/span>{\n                    <span class=\"hljs-keyword\">if<\/span> (err) {\n                        <span class=\"hljs-built_in\">console<\/span>.error(err);\n                    } <span class=\"hljs-keyword\">else<\/span> {\n                        <span class=\"hljs-built_in\">console<\/span>.log(<span class=\"hljs-string\">'Data saved successfully'<\/span>);\n                    }\n                });\n            }\n        });\n    }\n});\n<\/code><\/pre>\n<p>\u06a9\u062f \u0628\u0627\u0644\u0627 \u06cc\u06a9 \u0646\u0645\u0648\u0646\u0647 \u06a9\u0644\u0627\u0633\u06cc\u06a9 \u0627\u0632 \u062c\u0647\u0646\u0645 \u0628\u0631\u06af\u0634\u062a \u062a\u0645\u0627\u0633 \u0627\u0633\u062a.  \u062e\u0648\u0627\u0646\u062f\u0646 \u0622\u0646 \u0633\u062e\u062a \u0648 \u0645\u0633\u062a\u0639\u062f \u062e\u0637\u0627 \u0627\u0633\u062a.  \u062d\u0627\u0644\u0627 \u0628\u06cc\u0627\u06cc\u06cc\u062f \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 Bluebird \u0627\u06cc\u0646 \u0631\u0627 \u0628\u0647 Promises \u062a\u0628\u062f\u06cc\u0644 \u06a9\u0646\u06cc\u0645:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">const<\/span> <span class=\"hljs-built_in\">Promise<\/span> = <span class=\"hljs-built_in\">require<\/span>(<span class=\"hljs-string\">'bluebird'<\/span>);\n<span class=\"hljs-keyword\">const<\/span> getDataAsync = <span class=\"hljs-built_in\">Promise<\/span>.promisify(getData);\n<span class=\"hljs-keyword\">const<\/span> parseDataAsync = <span class=\"hljs-built_in\">Promise<\/span>.promisify(parseData);\n<span class=\"hljs-keyword\">const<\/span> saveDataAsync = <span class=\"hljs-built_in\">Promise<\/span>.promisify(saveData);\n\ngetDataAsync(<span class=\"hljs-string\">'data.json'<\/span>)\n    .then(parseDataAsync)\n    .then(saveDataAsync)\n    .then(<span class=\"hljs-function\">() =&gt;<\/span> <span class=\"hljs-built_in\">console<\/span>.log(<span class=\"hljs-string\">'Data saved successfully'<\/span>))\n    .catch(<span class=\"hljs-built_in\">console<\/span>.error);\n<\/code><\/pre>\n<p>\u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u0645\u06cc \u0628\u06cc\u0646\u06cc\u062f\u060c \u062e\u0648\u0627\u0646\u062f\u0646 \u0648 \u062f\u0631\u06a9 \u0646\u0633\u062e\u0647 \u0645\u0628\u062a\u0646\u06cc \u0628\u0631 Promise \u0628\u0633\u06cc\u0627\u0631 \u0633\u0627\u062f\u0647 \u062a\u0631 \u0627\u0633\u062a.  \u0647\u0645\u0686\u0646\u06cc\u0646 \u0642\u0648\u06cc\u200c\u062a\u0631 \u0627\u0633\u062a\u060c \u0632\u06cc\u0631\u0627 \u0647\u0631 \u062e\u0637\u0627\u06cc\u06cc \u06a9\u0647 \u062f\u0631 \u0647\u0631 \u0645\u0631\u062d\u0644\u0647 \u0631\u062e \u062f\u0647\u062f \u062a\u0648\u0633\u0637 \u0633\u06cc\u0646\u06af\u0644 \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u0645\u06cc\u200c\u0634\u0648\u062f <code>.catch()<\/code> \u062f\u0631 \u067e\u0627\u06cc\u0627\u0646.<\/p>\n<h2 id=\"conclusion\"><span class=\"ez-toc-section\" id=\"%d9%86%d8%aa%db%8c%d8%ac%d9%87\"><\/span>\u0646\u062a\u06cc\u062c\u0647<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647\u060c \u0631\u0648\u0634 \u062a\u0628\u062f\u06cc\u0644 Callback API\u0647\u0627\u06cc \u0645\u0648\u062c\u0648\u062f \u0628\u0647 \u0648\u0639\u062f\u0647 \u062f\u0631 Node.js \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u06a9\u0631\u062f\u0647 \u0627\u06cc\u0645.  \u0645\u0627 \u062a\u0641\u0627\u0648\u062a\u200c\u0647\u0627\u06cc \u0628\u06cc\u0646 \u062a\u0645\u0627\u0633\u200c\u0647\u0627\u06cc \u0628\u0631\u06af\u0634\u062a\u06cc \u0648 \u0648\u0639\u062f\u0647\u200c\u0647\u0627 \u0648 \u0627\u06cc\u0646\u06a9\u0647 \u0686\u0631\u0627 \u062a\u0628\u062f\u06cc\u0644 \u062a\u0645\u0627\u0633\u200c\u0647\u0627\u06cc \u0628\u0631\u06af\u0634\u062a\u06cc \u0628\u0647 \u0648\u0639\u062f\u0647\u200c\u0647\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0645\u0641\u06cc\u062f \u0628\u0627\u0634\u062f \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u06a9\u0631\u062f\u0647\u200c\u0627\u06cc\u0645.  \u0645\u0627 \u0631\u0648\u0634 \u0627\u0646\u062c\u0627\u0645 \u0627\u06cc\u0646 \u062a\u0628\u062f\u06cc\u0644 \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u06a9\u0631\u062f\u0647\u200c\u0627\u06cc\u0645 \u0648 \u0686\u06af\u0648\u0646\u0647 \u06a9\u062a\u0627\u0628\u062e\u0627\u0646\u0647 Bluebird \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0628\u0647 \u0633\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc \u0622\u0646 \u06a9\u0645\u06a9 \u06a9\u0646\u062f process.  \u0645\u0627 \u0647\u0645\u0686\u0646\u06cc\u0646 \u062f\u0631\u0628\u0627\u0631\u0647 \u0631\u0648\u0634 \u0631\u0633\u06cc\u062f\u06af\u06cc \u0628\u0647 \u062a\u0645\u0627\u0633 \u0647\u0627\u06cc \u062a\u0648\u062f\u0631\u062a\u0648 \u0648 \u062a\u0628\u062f\u06cc\u0644 \u0622\u0646\u0647\u0627 \u0628\u0647 \u0648\u0639\u062f\u0647 \u0647\u0627 \u0628\u062d\u062b \u06a9\u0631\u062f\u06cc\u0645.<\/p>\n<p>\u0631\u0627 process \u062a\u0628\u062f\u06cc\u0644 \u062a\u0645\u0627\u0633\u200c\u0647\u0627\u06cc \u0628\u0631\u06af\u0634\u062a\u06cc \u0628\u0647 \u0648\u0639\u062f\u0647\u200c\u0647\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u06a9\u0645\u06cc \u0645\u0634\u06a9\u0644 \u0628\u0627\u0634\u062f\u060c \u0628\u0647\u200c\u0648\u06cc\u0698\u0647 \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u0628\u0627 \u062a\u0645\u0627\u0633\u200c\u0647\u0627\u06cc \u062a\u0648\u062f\u0631\u062a\u0648 \u0633\u0631\u0648\u06a9\u0627\u0631 \u062f\u0627\u0631\u06cc\u0645.  \u0627\u0645\u0627 \u0628\u0627 \u062a\u0645\u0631\u06cc\u0646 \u0648 \u06a9\u0645\u06a9 \u06a9\u062a\u0627\u0628\u062e\u0627\u0646\u0647 \u0647\u0627\u06cc\u06cc \u0645\u0627\u0646\u0646\u062f Bluebird\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u0631\u0627 \u0633\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f process \u0648 \u067e\u0627\u06cc\u06af\u0627\u0647 \u06a9\u062f \u062e\u0648\u062f \u0631\u0627 \u0628\u0647\u0628\u0648\u062f \u0628\u062e\u0634\u06cc\u062f.<\/p>\n<\/div>\n<p>    (\u0628\u0631\u0686\u0633\u0628\u200c\u0647\u0627 \u0628\u0631\u0627\u06cc \u062a\u0631\u062c\u0645\u0647)# \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a<br \/>\n<br \/><br \/>\n<br \/>\u0645\u0646\u062a\u0634\u0631 \u0634\u062f\u0647 \u062f\u0631 1402-12-29 14:06:04<br \/>\n<\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-center kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;center&quot;,&quot;id&quot;:&quot;11253&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;0&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;0&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;\u0627\u0645\u062a\u06cc\u0627\u0632 \u0634\u0645\u0627 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0637\u0644\u0628&quot;,&quot;legend&quot;:&quot;0\\\/5 (0 \u0631\u0627\u06cc)&quot;,&quot;size&quot;:&quot;30&quot;,&quot;title&quot;:&quot;\u062a\u0628\u062f\u06cc\u0644 Callback API\u0647\u0627 \u0628\u0647 Promises \u062f\u0631 Node.jsJavaScript\u060c \u0627\u06af\u0631\u0686\u0647 \u0641\u0642\u0637 \u062a\u06a9 \u0631\u0634\u062a\u0647 \u0627\u06cc \u0627\u0633\u062a\u060c \u0627\u0645\u0627 \u06cc\u06a9 \u0632\u0628\u0627\u0646 \u0646\u0627\u0647\u0645\u0632\u0645\u0627\u0646 \u0627\u0633\u062a.  \u062f\u0631 \u0627\u0628\u062a\u062f\u0627 \u0641\u0642\u0637 \u0627\u0632 callback \u0628\u0631\u0627\u06cc \u06a9\u0627\u0631\u0647\u0627\u06cc \u0646\u0627\u0647\u0645\u0632\u0645\u0627\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0631\u062f\u060c \u0627\u0645\u0627 ES6 \u0645\u0641\u0647\u0648\u0645 \u06cc\u06a9 \u0648\u0639\u062f\u0647 \u0631\u0627 \u0645\u0639\u0631\u0641\u06cc \u06a9\u0631\u062f \u06a9\u0647 \u06a9\u0627\u0631 \u0628\u0627 \u0627\u06cc\u0646 \u0648\u0638\u0627\u06cc\u0641 \u0631\u0627 \u0628\u0633\u06cc\u0627\u0631 \u0622\u0633\u0627\u0646 \u06a9\u0631\u062f.  \u0627\u0645\u0627 \u0645\u0634\u06a9\u0644 \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u06a9\u062a\u0627\u0628\u062e\u0627\u0646\u0647\u200c\u0647\u0627 \u0648 API\u0647\u0627\u06cc \u0627\u0648\u0644\u06cc\u0647 \u0627\u0632 callback \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f \u0648...&quot;,&quot;width&quot;:&quot;0&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} ({count} \u0631\u0627\u06cc)&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 0px;\">\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 24px;\">\n            <span class=\"kksr-muted\">\u0627\u0645\u062a\u06cc\u0627\u0632 \u0634\u0645\u0627 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0637\u0644\u0628<\/span>\n    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">\u0632\u0645\u0627\u0646 \u0644\u0627\u0632\u0645 \u0628\u0631\u0627\u06cc \u0645\u0637\u0627\u0644\u0639\u0647: <\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">\u062f\u0642\u06cc\u0642\u0647<\/span><\/span>\u0645\u0639\u0631\u0641\u06cc \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a\u060c \u0627\u06af\u0631\u0686\u0647 \u062a\u0646\u0647\u0627 \u062a\u06a9 \u0631\u0634\u062a\u0647 \u0627\u06cc \u0627\u0633\u062a\u060c \u0627\u0645\u0627 \u06cc\u06a9 \u0632\u0628\u0627\u0646 \u0646\u0627\u0647\u0645\u0632\u0645\u0627\u0646 \u0627\u0633\u062a. \u062f\u0631 \u0627\u0628\u062a\u062f\u0627 \u0641\u0642\u0637 \u0627\u0632 callback \u0628\u0631\u0627\u06cc \u06a9\u0627\u0631\u0647\u0627\u06cc \u0646\u0627\u0647\u0645\u0632\u0645\u0627\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0631\u062f\u060c \u0627\u0645\u0627 ES6 \u0645\u0641\u0647\u0648\u0645 \u06cc\u06a9 \u0648\u0639\u062f\u0647 \u0631\u0627 \u0645\u0639\u0631\u0641\u06cc \u06a9\u0631\u062f \u06a9\u0647 \u06a9\u0627\u0631 \u0628\u0627 \u0627\u06cc\u0646 \u0648\u0638\u0627\u06cc\u0641 \u0631\u0627 \u0628\u0633\u06cc\u0627\u0631 \u0622\u0633\u0627\u0646 \u06a9\u0631\u062f. \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u0645\u0634\u06a9\u0644 \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u06a9\u062a\u0627\u0628\u062e\u0627\u0646\u0647\u200c\u0647\u0627 \u0648 API\u0647\u0627\u06cc \u0627\u0648\u0644\u06cc\u0647 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":9049,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1772,620],"tags":[],"class_list":["post-11253","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-javascript","category-programming"],"acf":[],"_links":{"self":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts\/11253","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/comments?post=11253"}],"version-history":[{"count":0,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts\/11253\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/media\/9049"}],"wp:attachment":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/media?parent=11253"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/categories?post=11253"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/tags?post=11253"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}