{"id":89691,"date":"2024-12-24T20:18:44","date_gmt":"2024-12-24T16:48:44","guid":{"rendered":"https:\/\/nabfollower.com\/blog\/react-%db%8c%da%a9-%d9%82%d9%84%d8%a7%d8%a8-%d8%b3%d9%81%d8%a7%d8%b1%d8%b4%db%8c-%d8%a8%d8%b1%d8%a7%db%8c-%d9%85%d8%af%db%8c%d8%b1%db%8c%d8%aa-%d8%b1%d9%88%db%8c%d8%af%d8%a7%d8%af%d9%87%d8%a7%db%8c\/"},"modified":"2024-12-24T20:18:44","modified_gmt":"2024-12-24T16:48:44","slug":"react-%db%8c%da%a9-%d9%82%d9%84%d8%a7%d8%a8-%d8%b3%d9%81%d8%a7%d8%b1%d8%b4%db%8c-%d8%a8%d8%b1%d8%a7%db%8c-%d9%85%d8%af%db%8c%d8%b1%db%8c%d8%aa-%d8%b1%d9%88%db%8c%d8%af%d8%a7%d8%af%d9%87%d8%a7%db%8c","status":"publish","type":"post","link":"https:\/\/nabfollower.com\/blog\/react-%db%8c%da%a9-%d9%82%d9%84%d8%a7%d8%a8-%d8%b3%d9%81%d8%a7%d8%b1%d8%b4%db%8c-%d8%a8%d8%b1%d8%a7%db%8c-%d9%85%d8%af%db%8c%d8%b1%db%8c%d8%aa-%d8%b1%d9%88%db%8c%d8%af%d8%a7%d8%af%d9%87%d8%a7%db%8c\/","title":{"rendered":"React &#8211; \u06cc\u06a9 \u0642\u0644\u0627\u0628 \u0633\u0641\u0627\u0631\u0634\u06cc \u0628\u0631\u0627\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u0631\u0648\u06cc\u062f\u0627\u062f\u0647\u0627\u06cc \u0622\u0646\u0644\u0627\u06cc\u0646 \u0648 \u0622\u0641\u0644\u0627\u06cc\u0646 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 AbortController \u0648 addEventListener \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f."},"content":{"rendered":"<div data-article-id=\"2173065\" id=\"article-body\">\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter-rtl ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u0641\u0647\u0631\u0633\u062a \u0645\u0637\u0627\u0644\u0628<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><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\/react-%db%8c%da%a9-%d9%82%d9%84%d8%a7%d8%a8-%d8%b3%d9%81%d8%a7%d8%b1%d8%b4%db%8c-%d8%a8%d8%b1%d8%a7%db%8c-%d9%85%d8%af%db%8c%d8%b1%db%8c%d8%aa-%d8%b1%d9%88%db%8c%d8%af%d8%a7%d8%af%d9%87%d8%a7%db%8c\/#%D8%A7%D8%B3%D8%AA%D9%81%D8%A7%D8%AF%D9%87_%D8%A7%D8%B2_AbortController_%D8%AF%D8%B1_%D9%85%D9%82%D8%A7%D8%A8%D9%84_removeEventListener\" >\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 AbortController \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 removeEventListener<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/nabfollower.com\/blog\/react-%db%8c%da%a9-%d9%82%d9%84%d8%a7%d8%a8-%d8%b3%d9%81%d8%a7%d8%b1%d8%b4%db%8c-%d8%a8%d8%b1%d8%a7%db%8c-%d9%85%d8%af%db%8c%d8%b1%db%8c%d8%aa-%d8%b1%d9%88%db%8c%d8%af%d8%a7%d8%af%d9%87%d8%a7%db%8c\/#%D8%AE%D9%88%D8%A7%D9%86%D8%A7%DB%8C%DB%8C\" >\u062e\u0648\u0627\u0646\u0627\u06cc\u06cc<\/a><\/li><\/ul><\/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\/react-%db%8c%da%a9-%d9%82%d9%84%d8%a7%d8%a8-%d8%b3%d9%81%d8%a7%d8%b1%d8%b4%db%8c-%d8%a8%d8%b1%d8%a7%db%8c-%d9%85%d8%af%db%8c%d8%b1%db%8c%d8%aa-%d8%b1%d9%88%db%8c%d8%af%d8%a7%d8%af%d9%87%d8%a7%db%8c\/#%D9%85%D8%B4%DA%A9%D9%84_%D9%88%D8%B6%D8%B9%DB%8C%D8%AA_%D8%A2%D9%86%D9%84%D8%A7%DB%8C%D9%86_%D9%86%D8%A7%D8%AF%D8%B1%D8%B3%D8%AA_%D8%A7%D8%B1%D8%A7%D8%A6%D9%87_%D8%B4%D8%AF%D9%87_%D8%A7%D8%B3%D8%AA\" >\u0645\u0634\u06a9\u0644: \u0648\u0636\u0639\u06cc\u062a \u0622\u0646\u0644\u0627\u06cc\u0646 \u0646\u0627\u062f\u0631\u0633\u062a \u0627\u0631\u0627\u0626\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/nabfollower.com\/blog\/react-%db%8c%da%a9-%d9%82%d9%84%d8%a7%d8%a8-%d8%b3%d9%81%d8%a7%d8%b1%d8%b4%db%8c-%d8%a8%d8%b1%d8%a7%db%8c-%d9%85%d8%af%db%8c%d8%b1%db%8c%d8%aa-%d8%b1%d9%88%db%8c%d8%af%d8%a7%d8%af%d9%87%d8%a7%db%8c\/#Start_editing_to_see_some_magic_happen\" >Start editing to see some magic happen!<\/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\/react-%db%8c%da%a9-%d9%82%d9%84%d8%a7%d8%a8-%d8%b3%d9%81%d8%a7%d8%b1%d8%b4%db%8c-%d8%a8%d8%b1%d8%a7%db%8c-%d9%85%d8%af%db%8c%d8%b1%db%8c%d8%aa-%d8%b1%d9%88%db%8c%d8%af%d8%a7%d8%af%d9%87%d8%a7%db%8c\/#%D8%B9%D9%84%D8%AA_%D8%B1%DB%8C%D8%B4%D9%87_%D8%A7%DB%8C\" >\u0639\u0644\u062a \u0631\u06cc\u0634\u0647 \u0627\u06cc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/nabfollower.com\/blog\/react-%db%8c%da%a9-%d9%82%d9%84%d8%a7%d8%a8-%d8%b3%d9%81%d8%a7%d8%b1%d8%b4%db%8c-%d8%a8%d8%b1%d8%a7%db%8c-%d9%85%d8%af%db%8c%d8%b1%db%8c%d8%aa-%d8%b1%d9%88%db%8c%d8%af%d8%a7%d8%af%d9%87%d8%a7%db%8c\/#%D8%B1%D8%A7%D9%87_%D8%AD%D9%84\" >\u0631\u0627\u0647 \u062d\u0644<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"%D8%A7%D8%B3%D8%AA%D9%81%D8%A7%D8%AF%D9%87_%D8%A7%D8%B2_AbortController_%D8%AF%D8%B1_%D9%85%D9%82%D8%A7%D8%A8%D9%84_removeEventListener\"><\/span>\n<p>  \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 AbortController \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 <code>removeEventListener<\/code><br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 AbortController<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>import { useEffect } from \"react\"\n\nexport function useOnlineStatus(onlineCallback: () =&gt; void, offlineCallback: () =&gt; void) {\n  useEffect(() =&gt; {\n    const controller = new AbortController()\n    window.addEventListener(\"online\", onlineCallback, { signal: controller.signal })\n    window.addEventListener(\"offline\", offlineCallback, { signal: controller.signal })\n\n    return () =&gt; {\n      controller.abort()\n    }\n  }, [onlineCallback, offlineCallback])\n}\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u062f\u0631 \u0645\u0642\u0627\u0628\u0644 <\/p>\n<p>\u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 removeEventListener<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>import { useEffect } from 'react';\n\nexport function useOnlineStatus(\n  onlineCallback: () =&gt; void,\n  offlineCallback: () =&gt; void\n) {\n  useEffect(() =&gt; {\n    window.addEventListener('online', onlineCallback);\n    window.addEventListener('offline', offlineCallback);\n\n    return () =&gt; {\n      window.removeEventListener('online', onlineCallback);\n      window.removeEventListener('offline', offlineCallback);\n    };\n  }, [onlineCallback, offlineCallback]);\n}\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"%D8%AE%D9%88%D8%A7%D9%86%D8%A7%DB%8C%DB%8C\"><\/span>\n<p>  \u062e\u0648\u0627\u0646\u0627\u06cc\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0639\u0645\u0644\u06a9\u0631\u062f \u067e\u0627\u06a9\u0633\u0627\u0632\u06cc (\u0647\u0631 \u0631\u0646\u062f\u0631 \u0645\u062c\u062f\u062f \u0648 \u0628\u0627\u0632 \u06a9\u0631\u062f\u0646) \u0627\u0632 <code>useEffect<\/code> \u0628\u0647 \u0633\u0627\u062f\u06af\u06cc \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u062a\u0645\u0627\u0633 \u0628\u06af\u06cc\u0631\u062f <code>controller.abort()<\/code><\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>...\n\nreturn () =&gt; {\n    controller.abort()\n}\n\n...\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<h2><span class=\"ez-toc-section\" id=\"%D9%85%D8%B4%DA%A9%D9%84_%D9%88%D8%B6%D8%B9%DB%8C%D8%AA_%D8%A2%D9%86%D9%84%D8%A7%DB%8C%D9%86_%D9%86%D8%A7%D8%AF%D8%B1%D8%B3%D8%AA_%D8%A7%D8%B1%D8%A7%D8%A6%D9%87_%D8%B4%D8%AF%D9%87_%D8%A7%D8%B3%D8%AA\"><\/span>\n<p>  \u0645\u0634\u06a9\u0644: \u0648\u0636\u0639\u06cc\u062a \u0622\u0646\u0644\u0627\u06cc\u0646 \u0646\u0627\u062f\u0631\u0633\u062a \u0627\u0631\u0627\u0626\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c<\/p>\n<p>\u0627\u0632 \u0645\u062a\u063a\u06cc\u0631 \u0628\u0627\u0632\u062f\u0647 \u062a\u0648\u0633\u0637 \u0647\u0648\u06a9 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f <code>useOnlineStatus<\/code> \u062f\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 \u06a9\u0627\u0645\u067e\u0648\u0646\u0646\u062a<\/p>\n<p>useOnlineStatus.ts<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>import { useEffect } from \"react\"\n\nexport function useOnlineStatus(onlineCallback: () =&gt; void, offlineCallback: () =&gt; void) {\n  useEffect(() =&gt; {\n    const controller = new AbortController()\n    window.addEventListener(\"online\", onlineCallback, { signal: controller.signal })\n    window.addEventListener(\"offline\", offlineCallback, { signal: controller.signal })\n\n    return () =&gt; {\n      controller.abort()\n    }\n  }, [onlineCallback, offlineCallback])\n\n  \/\/ return the window online status\n  return navigator.onLine;\n}\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>App.tsx<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>import React, {useCallback} from 'react';\nimport { useOnlineStatus } from '.\/hook';\n\nexport function App(props) {\n  const handleOnline = useCallback(() =&gt; {\n    console.log('online');\n  }, []);\n  const handleOffline = useCallback(() =&gt; {\n    console.log('offline');\n  }, []);\n  const isOnline = useOnlineStatus(handleOnline, handleOffline);\n  return (\n    <div classname=\"App\">\n      \n      <h2><span class=\"ez-toc-section\" id=\"Start_editing_to_see_some_magic_happen\"><\/span>Start editing to see some magic happen!<span class=\"ez-toc-section-end\"><\/span><\/h2>\n      <p>Online status: <span>{isOnline.toString()}<\/span><\/p>\n    <\/div>\n  );\n}\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 \u062d\u0627\u0644\u060c \u0647\u0646\u06af\u0627\u0645 \u062c\u0627\u0628\u0647\u200c\u062c\u0627\u06cc\u06cc \u0628\u06cc\u0646 \u00ab\u0622\u0641\u0644\u0627\u06cc\u0646\u00bb \u0648 \u00ab\u0628\u062f\u0648\u0646 throttling\u00bb \u062f\u0631 \u0628\u0631\u06af\u0647 \u00ab\u0634\u0628\u06a9\u0647\u00bb \u0627\u0628\u0632\u0627\u0631 \u062a\u0648\u0633\u0639\u0647\u200c\u062f\u0647\u0646\u062f\u0647 Chrome\u060c \u0628\u0631\u0646\u0627\u0645\u0647 \u0645\u0624\u0644\u0641\u0647 \u0648\u0636\u0639\u06cc\u062a \u0622\u0646\u0644\u0627\u06cc\u0646 \u0635\u062d\u06cc\u062d \u0631\u0627 \u0646\u0634\u0627\u0646 \u0646\u0645\u06cc\u200c\u062f\u0647\u062f. <code>isOnline<\/code>.<\/p>\n<p>\u0628\u0628\u06cc\u0646\u06cc\u062f \u06a9\u0647 \u0627\u0631\u0632\u0634 <code>isOnline<\/code> \u0648\u0642\u062a\u06cc \u0648\u0636\u0639\u06cc\u062a \u0627\u062a\u0635\u0627\u0644 \u0622\u0646\u0644\u0627\u06cc\u0646 \u0627\u0633\u062a \u0646\u0627\u062f\u0631\u0633\u062a \u0627\u0633\u062a:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Feqxut7zna06mzk7kjt2v.png\" alt=\"\u062a\u0648\u0636\u06cc\u062d\u0627\u062a \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"800\" height=\"493\" title=\"\"><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%D8%B9%D9%84%D8%AA_%D8%B1%DB%8C%D8%B4%D9%87_%D8%A7%DB%8C\"><\/span>\n<p>  \u0639\u0644\u062a \u0631\u06cc\u0634\u0647 \u0627\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0632\u06cc\u0631\u0627 \u062a\u0646\u0647\u0627 \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u06a9\u0627\u0645\u067e\u0648\u0646\u0646\u062a App \u0631\u0646\u062f\u0631 \u0645\u06cc \u0634\u0648\u062f\u060c \u0645\u0642\u062f\u0627\u0631 \u0622\u0646 \u0631\u0627 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f <code>navigator.onLine<\/code> \u0647\u0646\u06af\u0627\u0645 \u0641\u0631\u0627\u062e\u0648\u0627\u0646\u06cc \u0642\u0644\u0627\u0628 <code>useOnlineStatus<\/code> \u0628\u0647 \u0645\u062a\u063a\u06cc\u0631 \u0627\u062e\u062a\u0635\u0627\u0635 \u062f\u0627\u062f\u0647 \u062e\u0648\u0627\u0647\u062f \u0634\u062f <code>isOnline<\/code>. \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u0647\u0646\u06af\u0627\u0645\u06cc \u06a9\u0647 \u0648\u0636\u0639\u06cc\u062a \u0622\u0646\u0644\u0627\u06cc\u0646 \u062a\u063a\u06cc\u06cc\u0631 \u0645\u06cc \u06a9\u0646\u062f\u060c \u06a9\u0627\u0645\u067e\u0648\u0646\u0646\u062a App \u062f\u0648\u0628\u0627\u0631\u0647 \u0631\u0646\u062f\u0631 \u0646\u0645\u06cc \u0634\u0648\u062f\u060c \u06a9\u0647 \u0648\u0636\u0639\u06cc\u062a \u0642\u062f\u06cc\u0645\u06cc \u0631\u0627 \u0646\u0634\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f <code>isOnline<\/code> \u0628\u0647 \u062c\u0627\u06cc \u062c\u0631\u06cc\u0627\u0646 <code>navigator.onLine<\/code> \u0645\u0642\u062f\u0627\u0631 \u062f\u0631 \u067e\u0646\u062c\u0631\u0647<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%D8%B1%D8%A7%D9%87_%D8%AD%D9%84\"><\/span>\n<p>  \u0631\u0627\u0647 \u062d\u0644<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0628\u0647 \u0631\u0648\u0632 \u0631\u0633\u0627\u0646\u06cc <code>useOnlineStatus<\/code> \u0642\u0644\u0627\u0628 \u0628\u0631\u0627\u06cc \u0628\u0627\u0632\u06af\u0634\u062a \u0645\u062a\u063a\u06cc\u0631 \u062d\u0627\u0644\u062a \u0628\u0647 \u062c\u0627\u06cc <code>navigator.onLine<\/code>.<\/p>\n<p>\u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 <code>online<\/code> \u0631\u0648\u06cc\u062f\u0627\u062f \u0628\u0647 \u0647\u062f\u0641 (\u067e\u0646\u062c\u0631\u0647)\u060c \u062a\u0648\u0627\u0628\u0639 \u067e\u0627\u0633\u062e \u0628\u0647 \u062a\u0645\u0627\u0633 \u062a\u062d\u0648\u06cc\u0644 \u062f\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f <code>onlineCallback<\/code> \u0648 <code>set<\/code> \u0628\u0647 \u062a\u0631\u062a\u06cc\u0628 \u0628\u0631\u0627\u06cc \u0627\u0646\u062c\u0627\u0645 \u0648\u0638\u0627\u06cc\u0641 \u0648 \u0628\u0647 \u0631\u0648\u0632 \u0631\u0633\u0627\u0646\u06cc \u0645\u062a\u063a\u06cc\u0631\u0647\u0627\u06cc \u062d\u0627\u0644\u062a \u0641\u0631\u0627\u062e\u0648\u0627\u0646\u06cc \u0645\u06cc \u0634\u0648\u0646\u062f. \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 <code>offline<\/code> \u0631\u0648\u06cc\u062f\u0627\u062f \u0628\u0647 \u0647\u062f\u0641 (\u067e\u0646\u062c\u0631\u0647) \u062a\u062d\u0648\u06cc\u0644 \u062f\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f\u060c \u0627\u0635\u0644 \u06a9\u0627\u0631 \u0645\u0634\u0627\u0628\u0647 \u0627\u0633\u062a.<\/p>\n<p>\u062d\u0627\u0644\u062a varialbe \u0631\u0627 \u0627\u0639\u0644\u0627\u0645 \u06a9\u0646\u06cc\u062f <code>isOnline<\/code><\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>const [isOnline, setIsOnline] = useState(true);\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u06a9\u062f\u0647\u0627\u06cc \u06a9\u0627\u0645\u0644<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>import { useEffect, useState, useCallback } from 'react';\n\nexport function useOnlineStatus(\n  onlineCallback: () =&gt; void,\n  offlineCallback: () =&gt; void\n) {\n  const [isOnline, setIsOnline] = useState(true);\n  const handleOnline = useCallback(() =&gt; {\n    onlineCallback();\n    setIsOnline(true);\n  }, []);\n  const handleOffline = useCallback(() =&gt; {\n    offlineCallback();\n    setIsOnline(false);\n  }, []);\n\n  useEffect(() =&gt; {\n    const controller = new AbortController();\n    window.addEventListener('online', handleOnline, {\n      signal: controller.signal,\n    });\n    window.addEventListener('offline', handleOffline, {\n      signal: controller.signal,\n    });\n\n    return () =&gt; {\n      controller.abort();\n    };\n  }, [onlineCallback, offlineCallback]);\n  return isOnline;\n}\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\u0647 \u0627\u06cc\u0646 \u062a\u0631\u062a\u06cc\u0628\u060c \u0647\u0646\u06af\u0627\u0645\u06cc \u06a9\u0647 \u0648\u0636\u0639\u06cc\u062a \u0622\u0646\u0644\u0627\u06cc\u0646\/\u0622\u0641\u0644\u0627\u06cc\u0646 \u062a\u063a\u06cc\u06cc\u0631 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0628\u0631\u0646\u0627\u0645\u0647 \u062c\u0632\u0621 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 <code>useOnlineStatus<\/code> \u0647\u0648\u06a9 \u0645\u062c\u062f\u062f\u0627 \u0631\u0646\u062f\u0631 \u0645\u06cc \u0634\u0648\u062f \u0648 \u0648\u0636\u0639\u06cc\u062a \u0635\u062d\u06cc\u062d \u0622\u0646\u0644\u0627\u06cc\u0646 \u0631\u0627 \u0646\u0645\u0627\u06cc\u0634 \u0645\u06cc \u062f\u0647\u062f.<\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 AbortController \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 removeEventListener \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 AbortController import { useEffect } from &#8220;react&#8221; export function useOnlineStatus(onlineCallback: () =&gt; void, offlineCallback: () =&gt; void) { useEffect(() =&gt; { const controller = new AbortController() window.addEventListener(&#8220;online&#8221;, onlineCallback, { signal: controller.signal }) window.addEventListener(&#8220;offline&#8221;, offlineCallback, { signal: controller.signal }) return () =&gt; { controller.abort() } }, [onlineCallback, &hellip;<\/p>\n","protected":false},"author":2,"featured_media":89692,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/media2.dev.to\/dynamic\/image\/width=1000,height=500,fit=cover,gravity=auto,format=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fqw3iynmnorv06ublq4fn.png","fifu_image_alt":"","footnotes":""},"categories":[339],"tags":[],"class_list":["post-89691","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\/89691","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=89691"}],"version-history":[{"count":0,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts\/89691\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/media\/89692"}],"wp:attachment":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/media?parent=89691"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/categories?post=89691"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/tags?post=89691"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}