{"id":352420,"date":"2021-02-15T19:10:16","date_gmt":"2021-02-15T11:10:16","guid":{"rendered":"http:\/\/4563.org\/?p=352420"},"modified":"2021-02-15T19:10:16","modified_gmt":"2021-02-15T11:10:16","slug":"useeffect-%e4%b8%ba%e4%bb%80%e4%b9%88%e4%b8%8d%e8%83%bd%e6%94%af%e6%8c%81-async-function","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=352420","title":{"rendered":"useEffect \u4e3a\u4ec0\u4e48\u4e0d\u80fd\u652f\u6301 async function?"},"content":{"rendered":"
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useEffect \u4e3a\u4ec0\u4e48\u4e0d\u80fd\u652f\u6301 async function? <\/h1>\n

<\/p>\n

\n
\u8cc7\u6df1\u5927\u4f6c : wxsm <\/span> <\/i> 2<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n
  useEffect(async () => {    await loadContent();   }, []); <\/code><\/pre>\n
\u8fd9\u79cd\u5199\u6cd5\uff0c\u5e94\u8be5\u662f\u975e\u5e38\u5e38\u89c1\u7684\u9700\u6c42\u3002\u4f46\u662f React \u672c\u8eab\u5e76\u4e0d\u652f\u6301\u8fd9\u4e48\u505a\uff0c\u7406\u7531\u662f effect function \u5e94\u8be5\u8fd4\u56de\u4e00\u4e2a\u9500\u6bc1\u51fd\u6570\uff0c\u5982\u679c\u7528\u4e0a\u4e86 async\uff0c\u8fd4\u56de\u503c\u5219\u53d8\u6210\u4e86 Promise\uff0c\u4f1a\u5bfc\u81f4 react \u5728\u8c03\u7528\u9500\u6bc1\u51fd\u6570\u7684\u65f6\u5019\u62a5\u9519 (function.apply is undefined<\/code>)\u3002<\/p>\n
\u56e0\u6b64\uff0cReact \u63a8\u8350\u7684\u4e24\u79cd\u5199\u6cd5\uff1a<\/p>\n
  useEffect(() => {     \/\/ Create an scoped async function in the hook     async function anyNameFunction() {       await loadContent();     }     \/\/ Execute the created function directly     anyNameFunction();   }, []); <\/code><\/pre>\n
\u548c\uff1a<\/p>\n
  useEffect(() => {     \/\/ Using an IIFE     (async function anyNameFunction() {       await loadContent();     })();   }, []); <\/code><\/pre>\n
\u6211\u89c9\u5f97\u90fd\u975e\u5e38\u5730\u4e0d\u4f18\u96c5\uff0c\u6781\u5ea6\u589e\u52a0\u5fc3\u667a\u8d1f\u62c5\u3002<\/p>\n
    \n
  1. \u5982\u65e0\u5fc5\u8981\uff0c\u52ff\u589e\u5b9e\u4f53\u3002\u7b2c\u4e00\u79cd\u65b9\u5f0f\u9664\u4e86\u5b9a\u4e49\u4e86\u4e00\u4e2a\u65e0\u610f\u4e49\u7684\u51fd\u6570\uff08\u8fd8\u5f97\u60f3\u529e\u6cd5\u7ed9\u5b83\u53d6\u540d\uff09\u4ee5\u5916\uff0cIDE \u8fd8\u4f1a\u62a5 warning \uff08 Promise \u672a\u5904\u7406\uff09\u3002<\/li>\n
  2. \u81f3\u4e8e\u65b9\u5f0f\u4e8c\uff0c\u66f4\u52a0\u65e0\u529b\u5410\u69fd\u3002ES6 \u65f6\u4ee3\u90fd 5 \u5e74\u4e86\uff0c\u8fd8\u641e IIFE\uff0c\u7eaf\u7cb9\u5c31\u662f\u6076\u5fc3\u4eba\u3002<\/li>\n<\/ol>\n
    React \u5224\u65ad useEffect \u7684\u4f20\u53c2\u5230\u5e95\u662f\u7eaf\u51fd\u6570\u8fd8\u662f Promise \u975e\u5e38\u7b80\u5355\uff0c\u5b83\u4e3a\u4ec0\u4e48\u4e0d\u505a\u5462\uff1f\u8fd9\u5230\u5e95\u662f\u8bbe\u8ba1\u7f3a\u9677\uff0c\u8fd8\u662f React \u5077\u61d2\uff0c\u8fd8\u662f\u6211\u50bb\u903c\uff1f<\/p>\n<\/p><\/div>\n
     \u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (73<\/span>)        <\/div>\n
     <\/div>\n<\/p><\/div>\n<\/p><\/div>\n
      \n
    • \n
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       \u8cc7\u6df1\u5927\u4f6c : weixiangzhe <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u8fd9\u6837\u5199\u4e5f\u633a\u5371\u9669\u7684\uff0c \u5efa\u8bae                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : weixiangzhe <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   https:\/\/usehooks.com\/useAsync\/                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : weixiangzhe <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u4e3b\u8981\u662f \u7528 async\uff0c\u4e5f\u76f8\u5f53\u4e8e\u8fd9\u6837\u5427<\/p>\n
      “`
      useEffect(()=> new Promise(()=>{
      \/**xxxx**\/
      }))
      “`
      \u4e5f\u5c31\u662f unmount \u65f6\u7684\u6e05\u7406\u51fd\u6570\u4e86                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : ayase252 <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u6211\u731c useEffect \u7684\u8fd4\u56de\u503c\u662f\u8981\u5728\u5378\u8f7d\u7ec4\u4ef6\u65f6\u8c03\u7528\u7684\uff0cReact \u9700\u8981\u5728 mount \u7684\u65f6\u5019\u9a6c\u4e0a\u62ff\u5230\u8fd9\u4e2a\u503c\uff0c\u4e0d\u7136\u5c31\u4e71\u5957\u4e86                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
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       \u8cc7\u6df1\u5927\u4f6c : islxyqwe <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   useEffect(() => {
       loadContent().then(()=>{\/** do something *\/});
       }, []);                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : love <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \uff1f\uff1f\u4f60\u76f4\u63a5\u5199\u4e2a\u5c01\u88c5 hook \u4e0d\u5c31\u770b\u4e0a\u53bb\u4f18\u96c5\u4e86\uff0c\u6bd4\u5982 
      useAsyncEffect(async ()=>{})                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : wxsm <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @islxyqwe \u4e11\u964b\u7684\u5199\u6cd5                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : wxsm <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @weixiangzhe \u6211\u89c9\u5f97\u4e0d\u591f\u4f18\u96c5                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : wxsm <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @love \u6211\u53ef\u4ee5\u5c01\u88c5\uff0c\u6211\u53ea\u662f\u60f3\u77e5\u9053 react \u4e3a\u4ec0\u4e48\u4e0d\u76f4\u63a5\u7ed9\u7528\u6237\u63d0\u4f9b\uff0c\u800c\u8981\u7559\u4e0b\u5751\u4eba\u7684\u7a7a\u95f4\u3002\u4f60\u53ef\u80fd\u4e0d\u77e5\u9053 react native \u9047\u5230\u9519\u8bef\u7684\u5199\u6cd5\u6709\u591a\u7206\u70b8\uff0capp \u4f1a\u76f4\u63a5\u5d29\u6e83\u3002\u4e0d\u662f\u6240\u6709\u4eba\u90fd\u80fd\u7cbe\u901a react\uff0c\u603b\u4f1a\u6709\u4e00\u4e24\u4e2a\u6123\u5934\u9752\u4f1a\u8fd9\u4e48\u5e72\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : azcvcza <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u53ea\u80fd\u8bf4\uff0cjs \u7684 async \u51fd\u6570\u867d\u7136\u53eb\u505a\u5f02\u6b65\u51fd\u6570\uff0c\u4f46\u5b9e\u9645\u4e0a\u53ea\u662f Promise \u7684\u8bed\u6cd5\u7cd6\uff0c\u548c\u4e00\u822c\u4eba\u8ba4\u4e3a\u7684\uff0c\u90fd\u53eb\u51fd\u6570\u6709\u5565\u4e0d\u4e00\u6837\uff0c\u6709\u5f88\u5927\u533a\u522b\uff0c\u6bd4\u8f83\u5bb9\u6613\u5165\u5751                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : tedd <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u76f4\u63a5\u8ddf .then \u5427<\/p>\n
      useEffect(async () => {
       loadContent().then(res => {});
       }, []);                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : tedd <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u5fd8\u53bb\u4e86 async                                                             <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : anjianshi <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u6211\u89c9\u5f97 useEffect() \u53ef\u80fd\u6709\u4e2a\u6f5c\u5728\u903b\u8f91\uff1a\u7b2c\u4e8c\u6b21\u89e6\u53d1 useEffect \u91cc\u7684\u56de\u8c03\u524d\uff0c\u524d\u4e00\u6b21\u89e6\u53d1\u7684\u884c\u4e3a\u90fd\u6267\u884c\u5b8c\u6210\uff0c\u8fd4\u56de\u7684\u6e05\u7406\u51fd\u6570\u4e5f\u6267\u884c\u5b8c\u6210\u3002\u8fd9\u6837\u903b\u8f91\u624d\u6e05\u695a\u3002<\/p>\n
      useEffect(() =>{
       doSomething()
       return () => clear()
      }, [var])<\/p>\n
      \u540c\u6b65\u60c5\u51b5\u4e0b\uff0cvar \u53d8\u5316\u89e6\u53d1 useEffect() \u65f6\uff0c\u524d\u4e00\u6b21\u7684 doSomething() \u548c clear() \u80af\u5b9a\u90fd\u6267\u884c\u5b8c\u6210\u4e86\u3002<\/p>\n
      useEffect(async () =>{
       await doSomething()
       return () => clear()
      }, [var])<\/p>\n
      \u800c\u5982\u679c\u662f\u5f02\u6b65\u7684\uff0c\u60c5\u51b5\u4f1a\u53d8\u5f97\u5f88\u590d\u6742\uff0c\u53ef\u80fd\u4f1a\u5f88\u5bb9\u6613\u5199\u51fa\u6709 bug \u7684\u4ee3\u7801\u3002
      \u6240\u4ee5\u5b83\u4e0d\u76f4\u63a5\u652f\u6301\uff0c\u5982\u679c\u7528\u6237\u786e\u5b9a\u8fd9\u4e2a\u5f02\u6b65\u64cd\u4f5c\u4e0e useEffect() \u7684\u591a\u6b21\u89e6\u53d1\u6ca1\u6709\u51b2\u7a81\uff0c\u5c31\u81ea\u884c\u5c01\u88c5\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : wxsm <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @tedd \u4f60\u4e0d\u89c9\u5f97\u5f88\u4e11\u964b\u5417\uff0c\u522b\u7684\u5730\u65b9\u90fd\u7528 async \u8fd9\u91cc\u6765\u4e2a then                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : wxsm <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @azcvcza \u8bf4\u662f\u8fd9\u4e48\u8bf4\uff0c\u4f46\u662f async \u7684\u521d\u8877\u5c31\u662f\u8ba9\u5f02\u6b65\u6709\u540c\u6b65\u7684\u4f7f\u7528\u4f53\u9a8c\uff0cuseEffect \u660e\u663e\u8fdd\u80cc\u4e86\u8fd9\u4e2a\u521d\u8877\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : zhuweiyou <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u4f60\u8fd4\u56de\u4e86 promise, \u5b83\u5f53\u9500\u6bc1\u51fd\u6570\u5904\u7406\u4e86.<\/p>\n
      \u4e0d\u5f97\u4e0d\u8bf4, \u786e\u5b9e sb.                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : wxsm <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @anjianshi \u9053\u7406\u662f\u8fd9\u4e48\u4e2a\u9053\u7406\uff0c\u4f46\u590d\u6742\u5c31\u4e0d\u505a\uff0c\u6700\u7ec8\u4e0d\u662f\u6076\u5fc3\u4e86\u7528\u6237\u5417                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
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       \u8cc7\u6df1\u5927\u4f6c : iahu <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u6211\u7684\u7406\u89e3\u662f hook \u5728\u6bcf\u6b21 rerender \u65f6\u90fd\u4f1a\u751f\u6210\u4e00\u4e2a\u5feb\u7167\uff0c\u800c\u4e14\u8fd9\u4e9b\u5feb\u7167\u4e4b\u95f4\u7684\u6570\u636e\u7ed3\u6784\u662f\u94fe\u5f0f\u7684\u3002\u5982\u679c useEffect \u7684 callback \u662f Promise \u7c7b\u578b\u7684\uff0c\u90a3\u6240\u6709\u94fe\u63a5\u4e0a\u7684 hook \u5fc5\u5c06\u90fd\u5f97\u662f\u5f02\u6b65\u7684\uff0c\u800c FC (functional component) \u662f\u540c\u6b65\u7684\uff0c\u5728\u540c\u6b65\u7684 FC \u91cc\u60f3\u62ff\u5f02\u6b65\u7684\u72b6\u6001\u5c31\u5b8c\u5168\u662f\u53e6\u4e00\u5957\u64cd\u4f5c\u4e86\u3002<\/p>\n
      FC \u548c hook \u7684\u642d\u914d\u662f\u51fd\u6570\u5f0f\uff08 FP \uff09\u7f16\u8f91\u601d\u60f3\uff0cFP \u6784\u5efa\u662f\u7eaf\u51fd\u6570\u4e4b\u4e0a\u7684\u3002\u4e4b\u6240\u4ee5\u4e0d\u80fd\u5185\u90e8\u5b9e\u73b0\u5c31\u662f\u4e0e\u8bbe\u8ba1\u601d\u60f3\u4e0d\u7b26\uff0c\u800c\u4e14\u5b9e\u73b0\u4e86\u5c31\u4e0d\u80fd\u53ea\u5728\u8fd9\u4e00\u4e2a\u5730\u65b9\u5b9e\u73b0\uff0c\u5230\u5904\u90fd\u5f97\u652f\u6301\u3002                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : sm0king <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u770b\u4e0b hooks \u7684\u5b9e\u73b0\u539f\u7406\u6216\u8bb8\u53ef\u4ee5\u89e3\u51b3\u4f60\u7684\u7591\u95ee\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : noe132 <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u56e0\u4e3a useEffect \u6bcf\u6b21\u6e32\u67d3\u90fd\u4f1a\u6267\u884c\uff0c\u6bcf\u6b21\u6267\u884c\u90fd\u8981\u6267\u884c\u4e0a\u6b21\u6267\u884c\u8fd4\u56de\u7684 teardown.<\/p>\n
      \u4e86\u89e3\u4e00\u4e0b\u6211\u9488\u5bf9 mobx \u5c01\u88c5\u7684 react-composition-api
      https:\/\/github.com\/Firefox-Pro-Coding\/react-composition-api
      \u7528 react+mobx \u7684\u540c\u5b66\u53ef\u4ee5\u8bd5\u8bd5<\/p>\n
      \u53c2\u8003\u4e86 vue3 api\uff0c\u53ef\u4ee5 onMounted onUnmounted \u5d4c\u5957\uff0c\u652f\u6301 async\uff0c\u652f\u6301 reactivity watcher \u81ea\u52a8 teardown\uff0c\u51cf\u5c11\u4e00\u5927\u5806\u6a21\u677f\u4ee3\u7801\uff0c\u6781\u5927\u63d0\u9ad8\u5f00\u53d1\u8212\u9002\u5ea6\u3002\u76ee\u524d\u5df2\u7ecf\u7528\u5728\u6211\u4eec\u516c\u53f8\u7ebf\u4e0a\u9879\u76ee\u91cc\u4e86                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : wxsm <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @noe132 \u53ef\u60dc\u6211\u53f8\u7684\u9879\u76ee\u5df2\u7ecf\u88ab redux \u5957\u7262\u4e86                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : wxsm <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @iahu \u7b2c\u4e00\uff0chooks \u76ee\u524d\u5e76\u4e0d\u662f\u5168\u90e8\u8981\u6c42\u540c\u6b65\u7684\uff0c\u81f3\u5c11 useCallback \u53ef\u4ee5\u76f4\u63a5\u5b9a\u4e49 async \u51fd\u6570\u3002\u7b2c\u4e8c\uff0cuseEffect \u73b0\u5728\u7684\u505a\u6cd5\u4e5f\u53ea\u80fd\u662f\u5047\u540c\u6b65\uff0c\u8981\u6c42\u522b\u4eba\u5728 effet \u91cc\u5fc5\u987b\u5199\u7eaf\u51fd\u6570\uff0c\u7136\u800c\u53c8\u5efa\u8bae\u6709\u5f02\u6b65\u9700\u6c42\u7684\u4eba\u5728\u7eaf\u51fd\u6570\u91cc\u9762\u5199 IIFE\uff0c\u8fd9\u79cd\u505a\u6cd5\u4e5f\u540c\u6837\u65e0\u6cd5\u4fdd\u8bc1\u9500\u6bc1\u51fd\u6570\u4e0e effect \u51fd\u6570\u7684\u65f6\u5e8f\u6027\u3002\u8fd9\u5c31\u662f\u5355\u7eaf\u7684\u7b80\u5316\u4e86\u81ea\u5df1\u7684\u5de5\u4f5c\uff0c\u628a\u56f0\u96be\u7684\u5de5\u4f5c\u4ea4\u7ed9\u4e86\u7528\u6237\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : Kasumi20 <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   useEffect \u9700\u8981\u7acb\u5373\u540c\u6b65\u5730\u8fd4\u56de\u4e00\u4e2a\u6e05\u9664\u51fd\u6570\uff0c\u4f60\u4e3a\u4e86\u7528\u4e00\u4e2a await \u8bed\u6cd5\uff0c\u8fd4\u56de\u4e00\u4e2a Promise \u7ed9 React \u5e72\u561b                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : joesonw <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   useEffect(fn: () => () => void).<\/p>\n
      useEffect \u662f\u8981\u8fd4\u56de\u4e00\u4e2a\u51fd\u6570() => void \u7684, \u4f5c\u4e3a unmount \u7684\u65f6\u5019\u56de\u8c03\u7528\u7684. async \u8fd4\u56de\u7684\u8bdd\u5c31\u53d8\u6210 () => Promise<void>\u4e86. \u7b7e\u540d\u4e0d\u5bf9                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : iahu <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   – useCallback \u7684\u7b7e\u540d\u662f `(a, b) => a` \u7b2c\u4e00\u4e2a\u53c2\u6570\u5176\u5b9e\u5e76\u4e0d\u662f callback\uff0c\u5728 useCallback \u51fd\u6570\u91cc\u4e0d\u4f1a\u88ab\u6267\u884c\uff0c\u4efb\u4f55\u65f6\u5019\u4f20\u5165\u76f8\u540c\u53c2\u6570\u90fd\u4f1a\u8fd4\u56de\u76f8\u540c\u7684\u7ed3\u679c\uff0c\u5b83\u662f\u7b26\u5408\u7eaf\u51fd\u6570\u7684\u89c4\u8303\u7684\u3002
      – useEffect \u5c5e\u6027 effect hook \u3002\u5b83\u7684\u6267\u884c\u548c\u9500\u6bc1\u8fc7\u7a0b\u6bd4\u8f83\u7279\u6b8a\uff0c\u4e0b\u6267\u884c\u65f6\u4f1a\u6e05\u9664\u4e0a\u4e00\u6b21\u7684\u72b6\u6001\uff0c\u5728\u540c\u6b65\u7684\u6e32\u67d3\u903b\u8f91\u91cc\uff0c\u600e\u4e48\u4fdd\u8bc1\u80fd\u6e05\u9664\u5f02\u6b65\u7684\u72b6\u6001\uff1f                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : soulmt <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u7528 aysnc \u6807\u8bb0\u7684\u8bdd\uff0c\u8fd9\u4e2a\u51fd\u6570\u5c31\u662f\u5206\u6b65\u6267\u884c\u4e86\uff0c\u8fd9\u6837\u7684\u8bdd\u5728\u4e0d\u62a5\u9519\u7684\u60c5\u51b5\u4e0b\uff0creact \u53ef\u80fd\u65e0\u6cd5\u540c\u6b65\u62ff\u5230 return \u7684\u51fd\u6570\uff0c\u6240\u4ee5\u65e0\u6cd5\u63a7\u5236\u8ba2\u9605\u7684\u5378\u8f7d\u5bfc\u81f4\u4ee3\u7801\u4e0d\u53ef\u63a7\u3002\u5728 react \u7684\u7406\u5ff5\u4e2d\uff0c\u4e0d\u53ef\u63a7\u662f\u975e\u5e38\u5371\u9669\u7684\u64cd\u4f5c\uff0c\u6240\u4ee5\u5b81\u613f\u8ba9\u4ee3\u7801\u6076\u5fc3\u4e00\u70b9\u3002
      \u5c31\u6bd4\u5982\u4f60\u60f3\u5728 return \u91cc\u9762\u5378\u8f7d\u76d1\u542c\uff0c\u4f46\u662f react \u56e0\u4e3a await \u7684\u95ee\u9898\uff0c\u90fd\u4e0d\u77e5\u9053\u4f60\u4ec0\u4e48\u65f6\u5019\u624d\u80fd\u6267\u884c\u5230 return\uff0c\u6240\u4ee5\u5728\u6267\u884c\u5230 return \u8fd9\u6bb5\u65f6\u95f4\u5185\uff0c\u4f60\u7684\u6240\u6709\u64cd\u4f5c\u90fd\u4f1a\u9020\u6210\u4e0d\u786e\u5b9a\u7684\u7ed3\u679c\u3002\u8fd9\u662f\u6211\u60f3\u5230\u7684\u4e00\u4e2a\u539f\u56e0\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : wxsm <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @iahu \u6240\u4ee5\u8bf4\u5fc3\u667a\u8d1f\u62c5\u592a\u91cd\uff0c\u5199\u4e2a\u4ee3\u7801\u8ddf\u641e\u79d1\u7814\u4e00\u6837                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : cattchen <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u6b64\u5916\uff0c\u7528\u8fd9\u79cd\u5199\u6cd5\u540e\uff0c\u7c7b\u578b\u7b7e\u540d\u4e0d\u4e00\u81f4\u4e86\uff0c\u539f\u672c\u5e94\u8be5\u8fd4\u56de\u4e00\u4e2a Function \u7528\u6765\u5904\u7406 unmount\uff0c\u73b0\u5728\u53d8\u6210\u4e86 Promise <TValue>                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : otakustay <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u56e0\u4e3a React \u7684\u751f\u547d\u5468\u671f\u4e0d\u662f\u4f60\u63a7\u5236\u7684\uff0c\u4e25\u683c\u6765\u8bf4\u662f\u7528\u6237\u63a7\u5236\u7684\uff08\u7528\u6237\u8981\u79bb\u5f00\u4f60\u4e0d\u80fd\u963b\u6b62\u4ed6\uff09
      \u800c\u5bf9\u4e8e useEffect\uff0c\u5728\u751f\u547d\u5468\u671f\u7ed3\u675f\uff08\u6216 deps \u53d8\u5316\uff09\u65f6\uff0c\u526f\u4f5c\u7528\u9700\u8981\u88ab\u6e05\u7406
      \u5e76\u4e14\u5bf9\u4e8e\u4e00\u4e2a async \u7684\u8fc7\u7a0b\uff0c\u5982\u679c\u5b83\u6ca1\u6709\u5b8c\u6210\uff08\u672a resolve \u4e5f\u672a reject \uff09\uff0c\u90a3\u4e48\u4ece\u7406\u8bba\u4e0a\u6765\u8bf4\uff0c\u5728 effect \u6e05\u7406\u65f6\u5b83\u662f**\u5fc5\u987b**\u88ab\u4e2d\u65ad\u7684\uff0c\u56e0\u4e3a async \u8fc7\u7a0b\u5b8c\u6210\u540e\u5c31\u4f1a\u53d1\u751f\u526f\u4f5c\u7528\uff0c\u800c\u6b64\u65f6 effect \u5df2\u7ecf\u7ed3\u675f\u4e86\u6e05\u7406\uff0c\u8fd9\u4e2a\u526f\u4f5c\u7528\u4e00\u4f46\u53d1\u751f\u5c31\u4f1a\u5931\u63a7
      \u6240\u4ee5\uff0cReact \u5f88\u7b80\u5355\u5730\u8981\u6c42 useEffect \u4e0d\u80fd\u76f4\u63a5\u7528 async \u51fd\u6570\uff0c\u6765\u4fc3\u4f7f\u4f60\u5904\u7406 async \u7684\u4e2d\u65ad\u903b\u8f91<\/p>\n
      \u4f46\u5f88\u5c11\u6709\u4eba\u7406\u89e3\u5230\u8fd9\u4e2a\u70b9\uff0c\u4e0d\u4f46\u4e0d\u5904\u7406 async \u8ba9\u5f02\u6b65\u8fc7\u7a0b\u968f\u610f\u6cc4\u9732\u4e0d\u53ef\u63a7\uff0c\u8fd8\u602a React \u7684 API \u8bbe\u8ba1                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : wxsm <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @soulmt \u5176\u5b9e\u8fd9\u4e2a\u6211\u90fd\u61c2\u3002\u53ea\u4e0d\u8fc7\u6211\u5728\u60f3\u7684\u662f\uff0c\u4e3a\u4ec0\u4e48\u8fd9\u6837\u3002\u6bd4\u5982\u5378\u8f7d\u51fd\u6570\u4e3a\u4ec0\u4e48\u662f effect \u7684\u8fd4\u56de\u503c\uff0c\u800c\u4e0d\u662f\u72ec\u7acb\u7684\u4e00\u4e2a\u53c2\u6570                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : soulmt <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u8fd9\u4e5f\u6bd4\u8f83\u597d\u7406\u89e3\uff0c\u56e0\u4e3a\u95ed\u5305\uff0c\u4f60\u6ce8\u518c\u7684\u4f5c\u7528\u57df\u548c\u9500\u6bc1\u7684\u4f5c\u7528\u57df\u8981\u4fdd\u6301\u4e00\u81f4\uff0c\u7528\u53c2\u6570\u63a7\u5236\u7684\u8bdd\uff0c\u4e00\u65b9\u9762\u662f\u4f5c\u7528\u57df\u95ee\u9898\uff0c\u8fd8\u6709\u5c31\u662f\u53c2\u6570\u6765\u9500\u6bc1\u4e0d\u80fd\u4fdd\u8bc1\u7ed3\u679c\uff0c\u5c31\u6bd4\u5982\u4f60\u6ce8\u518c\u7684\u51fd\u6570\u53ef\u80fd\u8c03\u7528\u5931\u8d25\u4e86\uff0c\u4f46\u662f\u9500\u6bc1\u7684\u51fd\u6570\u5e76\u4e0d\u77e5\u9053\uff0c\u4f60\u4eec\u4e4b\u95f4\u4e5f\u6ca1\u6709\u529e\u6cd5\u5728\u6267\u884c\u5c42\u9762\u8fdb\u884c\u72b6\u6001\u5171\u4eab\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : otakustay <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u6211\u7ed9\u4e00\u4e2a\u5b98\u65b9\u8bf4\u6cd5\u7684\u6307\u5f15\u5427\uff1a https:\/\/overreacted.io\/a-complete-guide-to-useeffect\/#speaking-of-race-conditions<\/p>\n
      \u526f\u4f5c\u7528\u7684\u6e05\u7406\u548c rece condition \u7684\u5e94\u5bf9\u662f\u4e00\u4e2a\u9053\u7406\uff0c\u90fd\u662f async \u8981\u5728 effect \u9000\u51fa\u65f6\u4e2d\u6b62\uff08\u6216\u81f3\u5c11\u544a\u8bc9\u540e\u7eed\u7684\u526f\u4f5c\u7528\u4e0d\u8981\u53d1\u751f\uff09                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : weimo383 <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @wxsm \u7f51\u7edc\u8bf7\u6c42\u7684\u8bdd\u8bf7\u7528 SWR\uff0chook \u8d85\u597d\u7528                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : cwliang <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u80fd\u95ee\u51fa\u8fd9\u4e2a\u95ee\u9898\uff0c\u8bf4\u660e\u4f60\u8fd8\u9700\u52a0\u5f3a\u5b66\u4e60                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : yuang <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u90a3\u4e2a\u5f02\u6b65\u51fd\u6570\u53ef\u4ee5\u6761\u4ef6\u6267\u884c                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : ericls <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   Promise \u6ca1\u5b66\u597d\u4e0d\u8981\u5199 async .                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : mdn <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   useEffect \u662f\u6700\u57fa\u7840\u7684 hook,
      useAsyncEffect \u53ef\u4ee5\u81ea\u5df1\u5c01\u88c5<\/p>\n
      \/\/github.com\/rauldeheer\/use-async-effect                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : wxsm <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @cwliang 
      @ericls 
      \u53ef\u4e0d\u5c31\u662f\u5728\u5411\u5404\u4f4d\u5b66\u4e60\u5417\u3002\u4e0a\u5f88\u591a\u56de\u590d\u8fd8\u662f\u5f88\u8ba4\u771f\u5730\u56de\u7b54\u4e86\u6211\u7684\u95ee\u9898\u7684\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : KuroNekoFan <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u70b9\u8fdb\u6765\u597d\u51e0\u6b21
      \u6700\u540e\u89c9\u5f97\u4ece\u5b9e\u9645\u64cd\u4f5c\u4e0a\u6765\u8bf4\u53ea\u8981\u5224\u65ad\u4e00\u4e0b useeffect \u7684\u8fd4\u56de\u503c\u662f\u4e0d\u662f promise \u5c31\u597d\uff0c\u81f3\u4e8e\u4e3a\u4ec0\u4e48\u4e0d\u8fd9\u6837\u505a\uff0c\u53ef\u80fd\u6709\u4e9b\u98ce\u683c\u548c\u4e2a\u4eba\u504f\u597d\u7684\u539f\u56e0\u5427\u2026\u2026                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : claneo <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u8fd9\u4e2a\u5e16\u5b50\u771f\u7684\u662f\u6709\u4e00\u534a\u7684\u4eba\u53ea\u770b\u4e86\u6807\u9898\u5c31\u5f00\u59cb\u56de\u7b54\u4e86\u3002\u3002\u3002<\/p>\n
      \u6211\u611f\u89c9 React \u7684\u7406\u5ff5\u5c31\u662f\u8fd9\u6837\uff0c\u5c3d\u53ef\u80fd\u53ea\u63d0\u4f9b\u57fa\u7840\u7684 API\uff0c\u5269\u4e0b\u7684\u90e8\u5206\u9f13\u52b1\u7528\u6237\u53bb\u5c01\u88c5\u3002<\/p>\n
      \u800c\u4e14\u4e07\u4e00\u5c06\u6765 React \u652f\u6301\u5f02\u6b65\u6e32\u67d3\u5462\uff1f\u8bf4\u4e0d\u5b9a\u5230\u65f6\u5019 Promise \u5c31\u6709\u7528\u4e86\u3002                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : wxsm <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @claneo \u4f60\u7b97\u662f\u8bf4\u5230\u70b9\u4e0a\u4e86\uff0c\u8bf4\u5230\u5e95\u8fd8\u662f\u56e0\u4e3a render \u53ea\u652f\u6301\u540c\u6b65\u6267\u884c\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : wxsm <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @KuroNekoFan \u8fd9\u4e2a\u4e0a\u5f88\u591a\u5927\u725b\u56de\u7b54\u5f97\u5f88\u597d\uff0c\u5b83\u4e0d\u662f\u5355\u7eaf\u5224\u65ad\u4e00\u4e0b promise \u5c31\u80fd\u6210\u7684\u4e8b\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : leelz <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @claneo Concurrent Mode + Suspense \u5df2\u7ecf\u652f\u6301\u5f02\u6b65\u6e32\u67d3\u4e86\u3002https:\/\/reactjs.org\/docs\/concurrent-mode-suspense.html#approach-3-render-as-you-fetch-using-suspense                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : leelz <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u4e0a\u5f88\u591a\u56de\u7b54\u90fd\u5728\u89e3\u91ca\u4e3a\u4ec0\u4e48\u4e0d\u80fd\u7528\uff0c\u800c\u4e3b\u7684\u7591\u60d1\u662f\u4e3a\u4ec0\u4e48\u8fd9\u4e48\u8bbe\u8ba1\u3002\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : KuroNekoFan <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @wxsm \u6211\u672c\u6765\u60f3\u8bf4\u201cfiber \u505a\u4e3a\u6700\u5c0f\u6267\u884c\u5355\u5143\uff0c\u5185\u90e8\u7684\u4e1c\u897f\u5fc5\u987b\u662f\u540c\u6b65\u7684\u201d\uff0c\u4f46\u662f\u4e8b\u5b9e\u4e0a\u652f\u6301 async \u51fd\u6570\u76f4\u63a5\u4f5c\u4e3a\u53c2\u6570\u548c\u5728\u51fd\u6570\u5185\u518d\u7528 iife+async \u786e\u5b9e\u5c31\u662f\u4e00\u4e2a\u5224\u65ad\u7684\u4e8b\u5427\uff0c\u56e0\u4e3a\u6309\u73b0\u5728\u7684\u7ea6\u675f\u6765\u8bf4\u6709\u610f\u4e49\u7684\u8fd4\u56de\u662f\u4e00\u4e2a\u51fd\u6570\u7c7b\u578b\uff0c\u800c\u51fd\u6570\u7c7b\u578b\u53c8\u662f\u53ef\u4ee5\u65b9\u4fbf\u800c\u660e\u786e\u7684\u8ddf promise \u533a\u5206\u5f00\u6765\u7684                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : wanghaoipv6 <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u5e94\u8be5\u662f\u4e2a\u8bbe\u8ba1\u4e0a\u7684\u53d6\u820d\uff1f\u5982\u679c\u5f00\u4e86\u300c\u8fd4\u56de\u503c\u662f Promise\uff0c\u5c31\u5ffd\u7565\u300d\u8fd9\u4e2a\u53e3\u5b50\uff0c\u90a3\u5f88\u591a\u4eba\u5c31\u4f1a\u60f3\u300c\u4e3a\u5565\u4e0d\u628a\u5176\u4ed6\u7c7b\u578b\u4e5f\u987a\u4fbf\u5ffd\u7565\u4e86\uff1f\u300d\uff0c\u7136\u540e\u5927\u5bb6\u5c31\u968f\u4fbf\u8fd4\u56de\uff0c\u6162\u6162\u5f00\u59cb\u5fd8\u8bb0\u6709\u300c\u8fd4\u56de\u9500\u6bc1\u51fd\u6570\u300d\u8fd9\u4ef6\u4e8b\u3002\u8fd9\u4e2a\u4ee3\u7801\u5c31\u53d8\u6210\u4e86\u5c4e\u5c71\u3002<\/p>\n
      \u6211\u89c9\u5f97\u770b React \u53ef\u4ee5\u628a\u5b83\u60f3\u6210\u662f\u4e00\u4e2a\u6ca1\u6709\u8bed\u8a00\u503e\u5411\uff0c\u968f\u65f6\u53ef\u80fd\u7528 rust \u91cd\u5199\u7684\u4e1c\u897f\u3002react \u7684\u8bbe\u8ba1\u8005\u5174\u8da3\u70b9\u4e5f\u4e0d\u5728 JavaScript \u4e0a\uff08\u5426\u5219\u5c31\u4f1a\u50cf vue \u90a3\u6837\u72c2\u7528 proxy \u4e86\uff09\u3002\u8fd9\u79cd\u89c6\u89d2\u4e0b\u4f60\u63d0\u5230\u7684\u300c koa2 \u6781\u81f4\u7684\u4ee3\u7801\u827a\u672f\u300d\u5c31\u53d8\u5f97\u975e\u5e38\u7684\u4e0d\u4f18\u96c5\u3002\uff08\u6211\u731c\u7684\uff0c\u6211\u6ca1\u600e\u4e48\u7528\u8fc7 koa2\uff0c\u4e0d\u592a\u6e05\u695a\u4ee3\u7801\u827a\u672f\u5177\u4f53\u6307\u4ec0\u4e48\uff0c\u4e0d\u8fc7\u6211\u731c\u60f3\u662f\u5f3a\u4f9d\u8d56\u4e8e JavaScript \u672c\u8eab\u7684\u7279\u6027\u53d1\u5c55\u51fa\u6765\u7684\u8bed\u6cd5\u7cd6\uff1f\uff09\u3002<\/p>\n
      \u56e0\u6b64\uff0c\u300c\u4e0d\u7ba1\u7c7b\u578b\uff0c\u5728\u8fd0\u884c\u65f6\u68c0\u67e5\u6765\u786e\u5b9a\u4ee3\u7801\u884c\u4e3a\u300d\u8fd9\u79cd JavaScript \u5473\u5f88\u91cd\u7684\u4e1c\u897f\uff0c\u5728 typescript \u98ce\u6f6e\u6108\u6f14\u6108\u70c8\u7684\uff0creact \u91ce\u5fc3\u8d8a\u6765\u8d8a\u5927\u7684\u5f53\u4e0b\uff0c\u662f\u4e00\u4ef6\u6839\u672c\u5c31\u4e0d\u88ab\u8003\u8651\u7684\u59a5\u534f\u3002<\/p>\n
      \u81f3\u4e8e\u4f60\u4e0a\u9762\u63d0\u5230\u7684\u300c\u5378\u8f7d\u51fd\u6570\u4e3a\u4ec0\u4e48\u662f effect \u7684\u8fd4\u56de\u503c\uff0c\u800c\u4e0d\u662f\u72ec\u7acb\u7684\u4e00\u4e2a\u53c2\u6570\u300d\uff0c\u8fd9\u4e2a\u5b9e\u5728\u662f\u592a\u4e11\u4e86\uff0c\u66f4\u4e0d\u53ef\u80fd\u8003\u8651\u3002                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : wxsm <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @leelz \u770b\u5230\u4f60\u7684\u56de\u590d\u8fd8\u633a\u60ca\u559c\u7684\uff0c\u7136\u800c\u70b9\u8fdb\u53bb\u770b\u4e86\u4e00\u4e0b\u8bf4\u5b9e\u8bdd\u6211\u633a\u5931\u671b\u7684\u3002\u8bf4\u767d\u4e86\u5c31\u662f React \u4e5f\u5f00\u59cb\u6559\u4f60\u5199\u4ee3\u7801\u4e86\uff0c\u53d1\u660e\u7684\u4e1c\u897f\u8d8a\u6765\u8d8a\u591a\uff0c\u5e76\u4e0d\u80fd\u5229\u7528\u597d js \u672c\u8eab\u7684\u7279\u6027\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : wxsm <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @wanghaoipv6 <\/p>\n
      > \u6211\u89c9\u5f97\u770b React \u53ef\u4ee5\u628a\u5b83\u60f3\u6210\u662f\u4e00\u4e2a\u6ca1\u6709\u8bed\u8a00\u503e\u5411\uff0c\u968f\u65f6\u53ef\u80fd\u7528 rust \u91cd\u5199\u7684\u4e1c\u897f<\/p>\n
      \u4fd7\u8bdd\u8bf4\u5e72\u4e00\u884c\u7231\u4e00\u884c\uff0c\u6709\u6ca1\u6709\u503e\u5411\u6682\u4e14\u4e0d\u8c08\uff0c\u65e2\u7136\u505a\u4e86\u5c31\u8981\u628a\u5b83\u505a\u597d\u5427\u3002\u81f3\u4e8e ts\uff0c\u5b83\u8ddf js \u4e5f\u6ca1\u6709\u51b2\u7a81\uff0cts \u672c\u8eab\u5c31\u662f\u4e00\u79cd\u5bf9 js \u7684\u59a5\u534f\uff0c\u5426\u5219\u5b83\u5e72\u561b\u4e0d\u81ea\u7acb\u95e8\u6237\uff0c\u8981\u505a js \u7684\u8d85\u96c6\u5462\u3002                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : wxsm <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @KuroNekoFan <\/p>\n
      > \u4f46\u662f\u4e8b\u5b9e\u4e0a\u652f\u6301 async \u51fd\u6570\u76f4\u63a5\u4f5c\u4e3a\u53c2\u6570\u548c\u5728\u51fd\u6570\u5185\u518d\u7528 iife+async \u786e\u5b9e\u5c31\u662f\u4e00\u4e2a\u5224\u65ad\u7684\u4e8b\u5427<\/p>\n
      \u8fd8\u771f\u4e0d\u662f\u4e00\u4e2a\u5224\u65ad\u7684\u4e8b\u3002React \u60f3\u8981\u7684\u662f\u6267\u884c\u5b8c\u51fd\u6570\u7acb\u9a6c\u5f97\u5230\u9500\u6bc1\u51fd\u6570\uff0c\u5982\u679c\u52a0\u4e0a\u4e86 async \u8fd9\u4ef6\u4e8b\u5c31\u65e0\u4ece\u8c08\u8d77\u4e86\u3002React \u65e0\u6cd5\u53ca\u65f6\u5f97\u5230\u9500\u6bc1\u51fd\u6570\uff0c\u5c31\u65e0\u6cd5\u53ca\u65f6\u9500\u6bc1\u7ec4\u4ef6\uff0c\u6574\u4e2a\u67b6\u6784\u7acb\u9a6c\u590d\u6742\u5ea6\u500d\u589e\u3002<\/p>\n
      \u81f3\u4e8e IIFE\uff0cReact \u5bf9\u8fd9\u4ef6\u4e8b\u7684\u6001\u5ea6\u5c31\u662f\uff1a\u6211\u77e5\u9053\u5f88\u591a\u60c5\u51b5\u6709\u8fd9\u79cd\u9700\u6c42\uff0c\u4f60\u4eec\u53ef\u4ee5\u7528 IIFE \u6765\u5b9e\u73b0\uff0c\u81f3\u4e8e\u53d1\u751f\u4e86\u4ec0\u4e48\u4e8b\u6211\u4e0d\u7ba1\uff0c\u6211\u53ea\u8d1f\u8d23\u521b\u5efa\u548c\u9500\u6bc1\uff0c\u4f60\u4eec\u5f00\u53d1\u8005\u7528\u4e86\u5f02\u6b65\u8bb0\u5f97\u81ea\u5df1\u628a\u5c41\u80a1\u64e6\u5e72\u51c0\u5c31\u884c\u4e86\u3002                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : KuroNekoFan <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @wxsm \u8fd9\u5f88\u7b80\u5355\u554a\uff0c\u5bf9\u8fd4\u56de promise \u7684\u5f53\u6210\u8ddf void \u7684\u4e00\u6837\u5904\u7406\u5c31\u597d\u4e86
      \u90a3\u4e48\u95ee\u9898\u5c31\u662f 
      \u6211\u5141\u8bb8 async \u5173\u952e\u5b57\uff0c\u7528\u6237\u5199\u8d77\u6765\u65b9\u4fbf\u4e00\u70b9\uff0c\u4f46\u591a\u52a0\u4e00\u4e2a\u9488\u5bf9\u6027\u7684\u7ea6\u675f
      \u8fd8\u662f\u6211\u4e0d\u5141\u8bb8 async \u5173\u952e\u5b57\uff0c\u7528\u6237\u5199\u8d77\u6765\u9ebb\u70e6\u4e00\u70b9\uff0c\u4f46\u662f\u5c11\u4e00\u4e9b\u7ea6\u5b9a \/\u7ea6\u675f                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : wxsm <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @KuroNekoFan \u4e24\u79cd\u60c5\u51b5\u90fd\u4f1a\u6210\u4e3a\u7ea6\u675f\uff0c\u4e0d\u5141\u8bb8 async \u8fd9\u4ef6\u4e8b\u672c\u8eab\u5c31\u662f\u4e00\u4e2a\u7ea6\u675f                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : zed1018 <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u4e0d\u63e3\u6d4b fb \u8fd9\u4e48\u8bbe\u8ba1\u7684\u7528\u610f\uff0c\u5e16\u5b50\u91cc\u7684\u8fd9\u79cd\u5f02\u6b65\u83b7\u53d6\u6570\u636e\u5e76\u66f4\u65b0\u754c\u9762\u7684\u65b9\u6848\uff0c\u6211\u4e00\u76f4\u90fd\u662f\u7528 dispatch()\u505a\u7684\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : jinliming2 <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u5982\u679c\u4f60\u5728 useEffect \u91cc\u5199\u4e86\u4e00\u4e2a async \u51fd\u6570\uff1a
      useEffect(async () => {
       await waitFor10Seconds();
       return () => cleaningUp();
      }, [dep]);
      \u8fd9\u6837\uff0c\u5728\u8fd9\u4e2a async \u51fd\u6570\u4e2d\u7b49\u5f85\u4e86 10 \u79d2\u624d\u4f1a\u8fd4\u56de\uff0c\u800c\u8fd9\u4e4b\u95f4\u4f60\u89e6\u53d1\u4e86 dep \u7684\u66f4\u65b0\uff0c\u8bf7\u95ee\u73b0\u5728\u7684\u6267\u884c\u903b\u8f91\u4f1a\u600e\u6837\uff1f
      \u662f\u6574\u4e2a\u7ec4\u4ef6\u5361\u7740\u4e0d\u52a8\uff0c\u7b49\u8fd9\u4e2a Promise resolve \u4e4b\u540e\u518d\u53bb\u6267\u884c\u5b83\u7684 cleaning up \u51fd\u6570\u5417\uff1f\u8fd8\u662f\u8bf4\u8fd9\u4e2a cleaning up \u5c31\u4e0d\u6267\u884c\u4e86\uff1f\u8fd8\u662f\u8bf4\u628a\u8fd9\u4e2a cleaning up \u51fd\u6570\u52a0\u5165\u961f\u5217\uff0c\u4e4b\u540e\u53ef\u80fd\u4f1a\u4e71\u5e8f\u6267\u884c\uff1f\u6216\u8005\u6392\u5e8f\u540e\u987a\u5e8f\u6267\u884c\uff1f\u6709\u65f6\u8fd9\u4e2a Promise \u4e5f\u8bb8\u6c38\u8fdc\u4e0d\u4f1a resolve \u3002
      \u8fd9\u6837\u5c31\u4f1a\u4ea7\u751f\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u7684\u6b67\u4e49\u3002
      \u9ed8\u8ba4\u7ea6\u5b9a\u8fd4\u56de promise \u7684\u8bdd\u5c31\u4e0d\u652f\u6301 cleaning up \uff1f\u4f46\u8fd9\u5c31\u548c useEffect \u672c\u8eab\u7684\u8bbe\u8ba1\u7406\u5ff5\u4ea7\u751f\u4e86\u51b2\u7a81\uff0c\u672c\u8eab\u7684\u6982\u5ff5\u5f88\u7b80\u5355\uff0c\u8fd9\u53c8\u52a0\u4e86\u4e00\u79cd\u7279\u4f8b\u60c5\u51b5\u3002<\/p>\n
      \u6309\u7167\u6211\u7684\u4e60\u60ef\u7684\u8bdd\uff0c\u8fd9\u79cd\u5f02\u6b65\u4efb\u52a1\u4e0d\u4f1a\u5199\u5230 useEffect \u91cc\uff0c\u800c\u662f\u5199\u9053\u5916\u9762\uff0cuseEffect \u4e2d\u53ea\u662f\u53bb\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570\uff1a
      const fetchData = async () => {};
      useEffect(() => {
      fetchData();
      return () => abortFetch();
      }, [dep]);<\/p>\n
      \u53e6\u5916 Promise \u672a\u5904\u7406\u7684\u8b66\u544a\uff0c\u6211\u8fd9\u91cc\u9ed8\u8ba4\u662f\u6ca1\u6709\u8fd9\u4e2a\u8b66\u544a\u7684\uff0c\u6211\u4e5f\u4e0d\u4f1a\u53bb\u914d\u7f6e\u8fd9\u4e2a\u8b66\u544a\u3002
      \u6211\u89c9\u5f97\u8fd9\u662f\u5f88\u6b63\u5e38\u7684\u4e8b\u60c5\uff0cPromise \u4f5c\u4e3a\u4e00\u4e2a\u8fd4\u56de\u503c\uff0c\u5b83\u4e0e\u5176\u4ed6\u7684 return 1 \u3001return “1” \u6709\u4ec0\u4e48\u533a\u522b\uff1f\u5728\u6ca1\u6709\u5fc5\u8981\u7684\u60c5\u51b5\u4e0b\uff0c\u5176\u4ed6\u7684\u8fd4\u56de\u503c\u4f60\u53ef\u4ee5\u4e0d\u63a5\u6536\u3001\u4e0d\u5904\u7406\uff0c\u90a3\u4e3a\u5565\u5728\u6ca1\u6709\u5fc5\u8981\u5904\u7406\u7684\u65f6\u5019\uff0c\u8981\u7279\u522b\u53bb\u5173\u6ce8 Promise \u7684\u5904\u7406\u5462\uff1f\u4ec5\u4ec5\u56e0\u4e3a\u5b83\u662f\u4e2a\u201creturn new Promise()\u201d\uff1f                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : wxsm <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @jinliming2<\/p>\n
      > \u6309\u7167\u6211\u7684\u4e60\u60ef\u7684\u8bdd\uff0c\u8fd9\u79cd\u5f02\u6b65\u4efb\u52a1\u4e0d\u4f1a\u5199\u5230 useEffect \u91cc\uff0c\u800c\u662f\u5199\u9053\u5916\u9762\uff0cuseEffect \u4e2d\u53ea\u662f\u53bb\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570<\/p>\n
      \u5176\u5b9e\u73b0\u5728\u6211\u4eec\u5f88\u591a\u4e5f\u90fd\u662f\u8fd9\u4e48\u5199\u7684\uff0c\u53e6\u5916\u63d0\u9192\u4e00\u4e0b\u4f60\u7684\u4ee3\u7801\u4e0d\u4e25\u8c28\uff0cfetchData \u5fc5\u987b\u7528 useCallback \u5426\u5219\u65e0\u9650\u5faa\u73af\u3002<\/p>\n
      \u4f60\u7684\u56de\u7b54\u57fa\u672c\u662f\u57fa\u4e8e\u201dReact \u73b0\u5728\u5c31\u662f\u8fd9\u6837\u7684\u201d\uff0c\u7136\u540e\u63d0\u51fa\u4e86\u4e00\u7cfb\u5217\u53cd\u95ee\u3002\u4f46\u662f\u6211\u89c9\u5f97\u8fd9\u79cd\u56de\u7b54\u6ca1\u4ec0\u4e48\u5efa\u8bbe\u6027\u3002\u6211\u77e5\u9053\u6309\u7167 React \u73b0\u5728\u7684\u6a21\u5f0f async effect \u8d70\u4e0d\u901a\uff0c\u6211\u76ee\u524d\u4e5f\u63d0\u4f9b\u4e0d\u4e86\u66f4\u597d\u7684\u8bbe\u8ba1\uff0c\u53ea\u662f\u6211\u8ba4\u4e3a\u8fd9\u4e0d\u5bf9\uff0c\u4e0d\u591f\u4f18\u96c5\uff0c\u5bf9\u4e8e React \u8fd9\u6837\u4e00\u6b3e\u8ffd\u6c42\u5927\u9053\u81f3\u7b80\u7684\u6846\u67b6\uff08\u5e93\uff09\u6765\u8bf4\uff0c\u4e0d\u5951\u5408\u3002                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : no1xsyzy <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @azcvcza async\/await \u6a21\u578b\u5c31\u662f Future\/Promise \u7684\u8bed\u6cd5\u7cd6\uff0c\u8ddf js \u6ca1\u592a\u5927\u5173\u7cfb\uff0cPython Rust \u8fd9\u4e24\u4e2a\u4e5f\u662f\u8fd9\u4e48\u73a9\u7684\u3002
      \u5efa\u8bae\u81ea\u5df1\u5b9e\u73b0\u4e00\u4e2a Actor \u6a21\u578b\uff08<\/p>\n
      \u6211\u89c9\u5f97 #13 \u7684\u60c5\u51b5\u53ef\u80fd\u6027\u6bd4\u8f83\u5927\uff0c\u4e0d\u662f\u590d\u6742\uff0c\u800c\u662f\u6839\u672c\u6267\u884c\u6a21\u5f0f\u4e0a\u7684\u51b2\u7a81
      \u8bdd\u8bf4 JS \u7684 Promise \u53ef\u4ee5 cancel \u5417\uff1f
      \u8fd8\u662f\u5efa\u8bae Actor \u6a21\u578b\uff08\u53cd\u6b63 stackfull \u7684\u6ca1\u6cd5\u5728 JS \u91cc\u5b9e\u73b0\u53ea\u80fd\u6a21\u62df\uff09\uff0cActor \u6a21\u578b\u624d\u662f\u771f\u5f02\u6b65\uff0c\u8fde Future \u90fd\u6ca1\u6709\uff0cshot and gone<\/p>\n
      \u8bdd\u8bf4\uff0c\u8ba1\u7b97\u673a\u65b9\u9762\uff0c\u4f46\u51e1\u542c\u8bf4\u201c\u5927\u9053\u81f3\u7b80\u201d\uff0c\u8fd9\u4e2a\u4eba\u80af\u5b9a\u662f\u5728\u8bf4 worst is better                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : winglight2016 <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u6211\u662f\u5199 RN \u7684\u65f6\u5019\u4e86\u89e3 react \u7684\uff0c\u6211\u8bb0\u5f97 useEffect \u7684\u76ee\u7684\u662f\u4e3a\u4e86\u5237\u65b0 UI\uff0c\u7136\u540e\u8c03\u7528\u7684\u662f useContext \u91cc\u7684\u65b9\u6cd5\uff0c\u8fd9\u4e9b\u65b9\u6cd5\u662f\u53ef\u4ee5\u5b9a\u4e49\u4e3a async \u7684\uff0c\u6211\u4e5f\u4e0d\u7406\u89e3\u4e3a\u4ec0\u4e48\u76f4\u63a5\u8c03\u7528\u5c31\u4e0d\u884c\u3002\u5982\u4e0b\uff1a
      const {
       state: {currentObj, electricity},
       fetchElectricity,
       } = useContext(EnergyContext);<\/p>\n
      useEffect(() => {
       console.log(‘selectedDate: ‘ + selectedDate.format());
       fetchElectricity(currentObj, timeType, selectedDate.valueOf());
       }, [currentObj, selectedDate]);<\/p>\n
      const fetchElectricity = dispatch => async (currObj, timeType, timeValue) => {
      …
      \u8fd9\u4e48\u5b9a\u4e49\u6211\u89c9\u5f97\u867d\u7136\u7565\u4e3a\u70e6\u7410\uff0c\u4f46\u662f\u5c01\u88c5\u5f97\u8fd8\u4e0d\u9519\u4e86\uff0c\u800c\u4e14\u6240\u6709\u4e1a\u52a1\u903b\u8f91\u90fd\u7edf\u4e00\u5728 Context \u91cc\u5b9e\u73b0\uff0c\u9664\u4e86\u4e2a\u522b\u9700\u6c42\u90fd\u53ef\u4ee5\u7528\u8fd1\u4f3c\u7684\u4ee3\u7801\u5b9e\u73b0\uff0c\u53ef\u8bfb\u6027\u4e5f\u633a\u597d\u7684\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : aguesuka <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u8fd4\u56de\u9500\u6bc1\u51fd\u6570\u5c31\u4e0d\u662f\u4e2a\u597d\u8bbe\u8ba1\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : EridanusSora <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u770b\u4e86\u4e0a\u7684\u8ba8\u8bba\uff0c\u89c9\u5f97\u8fd8\u662f\u8fd4\u56de\u9500\u6bc1\u51fd\u6570\u8fd9\u4e2a\u8bbe\u8ba1\u963b\u6b62\u4e86 async effect \u7684\u7528\u6cd5\u3002
      \u90a3\u4e48\u8fd4\u56de\u9500\u6bc1\u51fd\u6570\u662f\u4e0d\u662f\u5408\u7406\u7684\uff1f\u867d\u7136\u4f7f\u7528\u4e0a\u611f\u89c9\u5f88\u7cbe\u5de7\uff0c\u4f46\u662f\u4f3c\u4e4e\u6709\u70b9 trick \u7684\u611f\u89c9\uff1f                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : azcvcza <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @no1xsyzy JS \u9ed8\u8ba4\u7684 Promise \u6ca1\u6709 cancel\uff0c\u7b2c\u4e09\u65b9\u5b9e\u73b0\u7684\u6211\u770b\u5230\u8fc7\uff0c\u4f46\u662f\u5404\u4e2a JS \u5f15\u64ce\u90fd\u6ca1\u5728\u6b63\u5f0f\u5b9e\u73b0\u52a0\u4e0a                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : soulmt <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @leelz \u8bbe\u8ba1\u5c31\u662f\u4e3a\u4e86\u8ba9\u5f00\u53d1\u8005\u6309\u7167\u8bbe\u8ba1\u7684\u89c4\u8303\u4f7f\u7528\uff0c\u901a\u8fc7\u7528\u6cd5\u9650\u5236\u53bb\u53cd\u63a8\u8bbe\u8ba1\uff0c\u5e76\u4e0d\u77db\u76fe\uff0c\u5982\u679c\u8bf4\u6709\u4e9b\u7528\u6cd5\u662f\u8bbe\u8ba1\u8005\u6ca1\u60f3\u5230\u7684\uff0c\u6211\u76f8\u4fe1\u8fd9\u79cd\u4e8b\u60c5\u5728 react \u91cc\u9762\u5e94\u8be5\u4f1a\u5f53\u4f5c bug \u4fee\u590d\uff0c\u6216\u8005\u4f1a\u88ab\u8ba4\u4e3a\u662f\u5408\u7406\u7684\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : soulmt <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @aguesuka \u6211\u89c9\u5f97\u633a\u597d\u7684\uff0c\u539f\u5730\u9500\u6bc1\u53ef\u4ee5\u89e3\u51b3\u4f5c\u7528\u57df\u7684\u95ee\u9898\uff0c\u628a\u540c\u4e00\u4ef6\u4e8b\u60c5\u7684\u6574\u4e2a\u5468\u671f\u653e\u5728\u4e86\u4e00\u8d77\u5904\u7406\uff0c\u8fd9\u4e2a\u6709\u52a9\u4e8e\u4ee3\u7801\u53ef\u8bfb\u6027\u548c\u7ef4\u62a4\u6027\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : SmiteChow <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   \u53ef\u4ee5\u7528\uff0c\u6211\u4e00\u76f4\u90fd\u5728\u7528\uff0c\u6240\u4ee5\u4e0a\u5404\u4f4d\u4f7f\u6211\u975e\u5e38\u7591\u60d1\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : wxsm <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @soulmt js \u5bf9\u4e8e async \u7684\u8bbe\u8ba1\u5c31\u662f\u8ba9\u5f02\u6b65\u51fd\u6570\u548c\u540c\u6b65\u51fd\u6570\u5177\u6709\u540c\u7b49\u7684\u4e66\u5199\u4f53\u9a8c\uff0c\u4f5c\u4e3a\u4e00\u6b3e\uff08\u81f3\u5c11\u76ee\u524d\u6765\u8bf4\uff09\u57fa\u4e8e js \u7684\u5e93\uff0cReact \u9996\u5148\u5c31\u6ca1\u6709\u5c0a\u91cd\u8fd9\u4e2a\u8bbe\u5b9a\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : wxsm <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @SmiteChow \u5982\u679c\u4f60\u4e00\u76f4\u90fd\u662f\u8fd9\u4e48\u7528\u7684\uff0c\u90a3\u6211\u5efa\u8bae\u4f60\u8d76\u7d27\u53bb\u8ba4\u771f\u5b66\u4e00\u5b66\uff0c\u6539\u6b63\u8fc7\u6765\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : soulmt <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @wxsm \u90a3\u6211\u53ef\u5f97\u6760\u4e00\u628a\u4e86\u54c8\u54c8\uff0creact \u662f\u57fa\u4e8e js \u6ca1\u9519\uff0c\u4f46\u662f\u57fa\u4e8e js \u600e\u4e48\u53bb\u5b9a\u4e49\u5f00\u53d1\u65b9\u5f0f\uff0c\u8fd9\u4e2a\u5176\u5b9e\u6ca1\u6709\u5fc5\u8981\u4e00\u5b9a\u53bb\u9075\u5b88\u54c8\uff0c\u5c31\u597d\u6bd4 react \u5f53\u5e74\u5728\u5904\u7406\u4f20\u9012\u51fd\u6570\u7684\u65f6\u5019\u662f\u5426\u8981\u81ea\u52a8 bind(this)\u8fd8\u662f\u5f00\u53d1\u8005\u624b\u52a8 bind\uff0c\u4e5f\u662f\u56e0\u4e3a\u90a3\u6781\u5c0f\u7684\u4e00\u90e8\u5206\u573a\u666f\u4e0d\u517c\u5bb9\uff0c\u800c\u9020\u6210\u4e86\u5f00\u53d1\u8005\u9700\u8981\u4e0d\u538c\u5176\u70e6\u7684\u624b\u52a8 bind\uff0c\u53c8\u6216\u8005\u5728\u5b9a\u4e49 getDerivedStateFromProps \u91c7\u7528\u4e86\u7eaf\u51fd\u6570\u7684\u65b9\u5f0f(\u5185\u90e8\u8bbf\u95ee\u4e0d\u4e86 this\uff0c\u53ea\u80fd\u63a5\u53d7\u5165\u53c2)\uff0c\u8fd9\u5176\u5b9e\u5bf9\u4e8e class \u7ec4\u4ef6\u7684\u5b9a\u4e49\u6765\u8bf4\uff0c\u4e5f\u662f”\u975e\u5e38\u89c4”\u5b9a\u4e49\uff0c\u4f46\u662f\u8fd9\u80cc\u540e\u7684\u542b\u4e49\uff0c\u53ea\u6709\u5b9a\u4e49\u7684\u4eba\u624d\u77e5\u9053\uff0c\u6240\u4ee5 hooks \u4e5f\u6ca1\u6709\u4e0d\u5c0a\u91cd\u8fd9\u4e2a\u8bbe\u5b9a\uff0c\u8d77\u7801\u5141\u8bb8\u5728\u5185\u90e8\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u4e3a\u6240\u6b32\u4e3a\u7684\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : no1xsyzy <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @wxsm \u4ece\u4e66\u5199\u4f53\u9a8c\u8fd9\u4e00\u70b9\u4e0a\u6765\u8bf4\uff0casync \u5fc5\u7136\u5bfc\u81f4\u5173\u952e\u8bcd\u6c61\u67d3\u2026\u2026
      \u8bdd\u8bf4 React \u7684\u51fd\u6570\u5f0f\u7ec4\u4ef6\u672c\u8eab\u652f\u6301 async \u5b9a\u4e49\u5417\uff1f                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : wxsm <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @soulmt \u6ca1\u6709\u8bf4\u4e00\u5b9a\u8981\u9075\u5b88\uff0c\u6211\u7684\u51fa\u53d1\u70b9\u662f\u300c\u4f18\u96c5\u300d\u3002\u5f53\u5f00\u53d1\u4f53\u9a8c\u4e0e\u539f\u751f js \u7684\u5951\u5408\u5ea6\u8d8a\u9ad8\uff0c\u53d1\u660e\u7684\u4e1c\u897f\u8d8a\u5c11\uff0c\u9700\u8981\u5199\u7684\u4ee3\u7801\u8d8a\u5c11\uff0c\u6211\u8ba4\u4e3a\u8d8a\u4f18\u96c5\u3002\u4e0d\u662f\u8bf4 React \u5b9a\u4e49\u7684 hooks \u65b9\u5f0f\u4e0d\u597d\uff0c\u800c\u662f\u8bf4\uff0c\u5b83\u76ee\u524d\u5b58\u8fd8\u5b58\u5728\u8fd9\u4e9b\u4e0d\u8db3\uff0c\u5bfc\u81f4\u5b83\u8fd8\u4e0d\u591f\u4f18\u96c5\u3002\u4f60\u8bf4\u7684\u624b\u52a8 bind \u786e\u5b9e\u4e11\u964b\uff0c\u4f46\u662f React \u73b0\u5728\u4e0d\u4e5f\u901a\u8fc7 hook \u628a\u5b83\u5e72\u6389\u4e86\u5417\uff0c\u5c31\u7b97\u4e0d\u5199 hook \u81f3\u5c11\u73b0\u5728\u53ef\u4ee5\u5728\u7c7b\u4e0a\u9762\u5b9a\u4e49\u7bad\u5934\u6210\u5458\u51fd\u6570\uff0c\u518d\u4e5f\u4e0d\u7528\u5199 bind \u4e86\uff0c\u8fd9\u5c31\u662f\u8fdb\u6b65\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : wxsm <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @no1xsyzy <\/p>\n
      1. \u4ece\u5229\u5f0a\u5173\u7cfb\u6765\u8bf4\uff0c\u5229\u5927\u4e8e\u5f0a\u3002
      2. \u4e0d\u652f\u6301\uff0c\u8fd9\u5e94\u8be5\u662f\u75c7\u7ed3\u6240\u5728\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : aguesuka <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   useEffect \u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u7684\u7c7b\u578b\u662f<\/p>\n
      () => (() => void) | void \/\/ \u5728 ReactFiberHooks \u6587\u4ef6<\/p>\n
      \u8bbe\u8ba1\u5f97\u4e0d\u597d\u7684\u5730\u65b9\u5728\u4e8e\u8fd9\u4e2a\u51fd\u6570\u505a\u4e86\u4e24\u4ef6\u4e8b\u60c5\uff0c\u5b83\u662f\u4e00\u4e2a\u6709\u526f\u4f5c\u7528\u7684\u51fd\u6570\uff0c\u800c\u4e14\u662f\u53e6\u4e00\u4e2a\u6709\u526f\u4f5c\u7528\u7684\u51fd\u6570\u7684\u751f\u6210\u5668\u3002\u4f46\u662f\u8bed\u4e49\u4e0a\uff0c\u5b83\u5e76\u4e0d\u662f\u9500\u6bc1\u51fd\u6570\u7684\u751f\u6210\u5668\uff0c\u800c\u662f\u5728\u526f\u4f5c\u7528\u7684\u540c\u65f6\u8bbe\u7f6e\u6216\u8005\u6539\u53d8\u4e86\u9500\u6bc1\u51fd\u6570\u3002<\/p>\n
      \u5408\u7406\u7684\u601d\u8def\u5e94\u8be5\u662f\u8fd9\u4e2a\u53c2\u6570\u6ca1\u6709\u8fd4\u56de\u503c\uff0c\u4f46\u662f\u5728\u6267\u884c\u8fc7\u7a0b\u4e2d\u53ef\u4ee5\u8c03\u7528\u53e6\u5916\u4e00\u4e2a\u51fd\u6570\uff0c\u76f8\u5f53\u4e8e\u8fd4\u56de\u9500\u6bc1\u51fd\u6570\u3002<\/p>\n
      @soulmt                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : soulmt <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @aguesuka \u8bbe\u8ba1\u8fd4\u56de\u51fd\u6570\u7684\u4f5c\u7528\u5c31\u662f\u81ea\u5df1\u6e05\u7406\u81ea\u5df1\u7684\u526f\u4f5c\u7528\uff0c\u5173\u6ce8\u70b9\u6bd4\u8f83\u96c6\u4e2d\uff0c\u4e0d\u50cf class \u7ec4\u4ef6\uff0c\u4e00\u4e2a\u5730\u65b9\u6ce8\u518c\u4e86\u3002\u9700\u8981\u5728\u522b\u7684\u751f\u547d\u5468\u671f\u91cc\u9762\u9500\u6bc1\uff0c\u8fd9\u5bf9\u590d\u6742\u9875\u9762\u7684\u9605\u8bfb\u6027\u4e0a\u6709\u70b9\u4e0d\u53cb\u597d\u3002<\/p>\n
      \u4f60\u8bf4\u7684\u8c03\u7528\u53e6\u5916\u4e00\u4e2a\u51fd\u6570(\u5047\u8bbe B)\u6765\u9500\u6bc1\uff0c\u8fd9\u4e00\u70b9\u5c31\u9047\u5230\u4e00\u4e2a\u95ee\u9898\uff0c\u6bd4\u5982\u76d1\u542c\uff0c\u4f60\u5728 Effect \u91cc\u9762\u6ce8\u518c\u4e86\u76d1\u542c \/\u5b9a\u65f6\u5668\uff0c\u90a3\u4e48\u4f60\u5378\u8f7d\u7684\u65f6\u5019\u522b\u7684\u51fd\u6570\u662f\u8bbf\u95ee\u4e0d\u4e86 Effect \u91cc\u9762\u7684\u53d8\u91cf\u7684\uff0c\u90a3\u4f60\u76d1\u542c\u7684\u56de\u8c03\u51fd\u6570\u5f97\u4e0a\u629b\u5230 B \u7684\u4f5c\u7528\u57df\u91cc\u9762\uff0c\u8fd9\u6837\u7684\u8bdd\uff0cEffect \u6240\u5e26\u6765\u7684\u72ec\u7acb\u4f5c\u7528\u57df\u5c31\u88ab\u6253\u4e71\u4e86\uff0c\u4e5f\u4e0d\u7b26\u5408 hooks \u7684\u5fc3\u667a\u6a21\u578b\uff0c\u8fd9\u5728 class \u7ec4\u4ef6\u91cc\u9762\u4e5f\u662f\u4e00\u4e2a\u7528\u8d77\u6765\u5f88\u9ebb\u70e6\u7684\u4e8b\u60c5\u3002                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : SmiteChow <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   @wxsm \u6539\u5565\uff1f\u6211\u80fd work \u554a                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : myCupOfTea <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   ,useEffect \u5982\u679c\u652f\u6301 async \u540c\u6837\u4f1a\u5e26\u6765\u5176\u4ed6\u5fc3\u667a\u8d1f\u62c5,\u5e72\u8106\u4e0d\u652f\u6301,\u6211\u89c9\u5f97\u4e5f\u6ca1\u5565\u6bdb\u75c5<\/p>\n
      \u5982\u679c useEffect \u652f\u6301 async,cancel \u600e\u4e48\u5904\u7406\u5462,\u6839\u672c\u5c31\u6ca1\u6709\u597d\u7684\u65b9\u6cd5
       useEffect(() => {
       \/\/ Create an scoped async function in the hook
       async function anyNameFunction() {
       await loadContent();
       }
       \/\/ Execute the created function directly
       anyNameFunction();
       }, []);
      \u4f60\u8fd9\u4e48\u5199\u4e5f\u4f1a\u6709\u95ee\u9898
      \u4f60\u80fd\u4fdd\u8bc1\u4e0b\u6b21 effect \u8fdb\u6765\u4e0a\u6b21\u7684\u6267\u884c\u7684\u7ed3\u679c\u5b8c\u6210\u4e86\u5417,\u5982\u679c\u540e\u53f0\u6709\u8d1f\u8f7d\u5747\u8861\u5668,\u4f60\u80fd\u4fdd\u8bc1\u524d\u4e00\u6b21\u7684\u8c03\u7528\u4e00\u5b9a\u5728\u540e\u4e00\u6b21\u6267\u884c\u7684\u8fd4\u56de\u503c\u524d\u9762\u5417
      \u5f88\u53ef\u80fd\u51fa\u73b0 \u524d\u4e00\u6b21\u8fd4\u56de\u7684\u6570\u636e\u6bd4\u540e\u4e00\u6b21\u6162\u5bfc\u81f4\u4fee\u6539 state \u7684\u503c\u662f\u524d\u4e00\u6b21\u7684\u7ed3\u679c,\u5e72\u8106\u7b80\u5355\u4e00\u70b9,\u590d\u6742\u7684\u60c5\u51b5\u5404\u81ea\u81ea\u5df1\u5c01\u88c5\u5c31\u597d                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
       \u8cc7\u6df1\u5927\u4f6c : myCupOfTea <\/span>  <\/div>\n
       <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                   async \u7684\u4f20\u67d3\u6027\u592a\u5f3a\u4e86,\u9664\u975e\u6574\u4e2a render \u5168\u90e8\u5f02\u6b65\u5316\u91cd\u5199\u4e00\u904d                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n","protected":false},"excerpt":{"rendered":"
      useEffect \u4e3a\u4ec0\u4e48\u4e0d\u80fd\u652f\u6301…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/352420"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=352420"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/352420\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=352420"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=352420"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=352420"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}