{"id":95921,"date":"2020-04-06T05:19:09","date_gmt":"2020-04-05T21:19:09","guid":{"rendered":"http:\/\/4563.org\/?p=95921"},"modified":"2020-04-06T05:19:09","modified_gmt":"2020-04-05T21:19:09","slug":"%e8%af%b7%e6%95%99-js-%e4%b8%ad%e5%a6%82%e4%bd%95%e4%bc%98%e9%9b%85%e7%9a%84%e5%a4%84%e7%90%86%e5%bc%82%e6%ad%a5%e5%bc%82%e5%b8%b8%ef%bc%9f","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=95921","title":{"rendered":"\u8bf7\u6559 js \u4e2d\u5982\u4f55\u4f18\u96c5\u7684\u5904\u7406\u5f02\u6b65\u5f02\u5e38\uff1f"},"content":{"rendered":"
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\u8bf7\u6559 js \u4e2d\u5982\u4f55\u4f18\u96c5\u7684\u5904\u7406\u5f02\u6b65\u5f02\u5e38\uff1f <\/h1>\n

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\u8cc7\u6df1\u5927\u4f6c : rioshikelong121 <\/span> <\/i> 60<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n
  setTimeout(() => {     throw new Error(\"Whoops!\");   }, 1000);  <\/code><\/pre>\n
\u6bd4\u5982\u4e0a\u8ff0\u573a\u666f\uff0c \u5916\u5c42\u7684 try-catch \u7b49\u65b9\u5f0f\u80af\u5b9a\u662f\u65e0\u6cd5\u5904\u7406\u7684\uff0c\u4e0d\u8003\u8651 window.onerror.<\/p>\n
\u9664\u4e86\u4f7f\u7528\u4f7f\u7528 Promise.reject \u6539\u5199\u4e0a\u8ff0\u4ee3\u7801\u4e3a<\/p>\n
  new Promise((resolve, reject) => {    setTimeout(() => {     reject(\"Whoops!\");   }, 1000);  }).catch(\/* errorHandle *\/)  <\/code><\/pre>\n
\u6216\u8005\u5728 setTimout \u5185\u90e8 try-catch \u4ee5\u5916\uff0c\u8fd8\u6709\u4ec0\u4e48\u65b9\u6848\u4e48\uff1f<\/p>\n<\/p><\/div>\n
 \u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (17<\/span>)        <\/div>\n
 <\/div>\n<\/p><\/div>\n<\/p><\/div>\n
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  • \n
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     \u8cc7\u6df1\u5927\u4f6c : H15018327040 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 async\/await?                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : maichael <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 setTimeout(() => {
     try {
     throw new Error(“Whoops!”);
     } catch {
     \/\/ handle error
     }
     }, 1000);<\/p>\n
    \u8fd9\u6837\uff1f                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : Vegetable <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 async\/await+trycatch                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : Vegetable <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u54e6\u8fd8\u6709 promiss                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : Vegetable <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 e..                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : fool079 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 async + try catch                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : zhw2590582 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u8fd8\u6709\u4e2a\u4e0d\u4f18\u96c5\u5199\u6cd5
    window.addEventListener(‘unhandledrejection’, function(err) {});                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : rioshikelong121 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @zhw2590582 \u6839\u636e\u6211\u7684\u7406\u89e3\uff0c \u8fd9\u4e2a\u5199\u6cd5\u8fd8\u5f97\u7528 Promise \u5305\u88c5\u4e00\u4e0b\uff0c \u666e\u901a\u7684 setTimeout \u5185\u629b\u51fa\u7684\u5f02\u5e38\u662f\u89e6\u53d1\u4e0d\u4e86\u7684\u3002\u6d4f\u89c8\u5668\u73af\u5883\u5f97\u7528 onerror, node \u73af\u5883\u5f97\u7528 process.on(‘uncaughtException’)                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : rioshikelong121 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @Vegetable \u6069 \u8c8c\u4f3c\u5f15\u5165 async\/await \u662f\u4e2a\u65b9\u6cd5\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : zaul <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 promise \u6df1\u5165\u4e86\u89e3\u4e0b                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : rioshikelong121 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u8fd9\u4e48\u591a\u4eba\u4e0d\u770b\u63cf\u8ff0\u7684 \ud83d\ude42                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : SorcererXW <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 async function sleep(timeout){
     return new Promise(resolve=>setTImeout(timeout, resolve))
    }<\/p>\n
    new Promise((resolve,reject)=>{
     await sleep(1000)
     try{
     throw new Error(xxxx)
     }catch(e){
     reject(e)
     }
    })
    .then()
    .catch()                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : SorcererXW <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u5728\u4e00\u4e2a promise \u91cc\u9762\u76f4\u63a5\u540c\u6b65\u7b49\u5b8c\u8fd9 1 \u79d2\uff0c\u518d\u8ba9 reject \u5904\u7406\u6389\u629b\u51fa\u7684 error                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : liuzhaowei55 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u5982\u679c\u4e0d\u662f\u5f02\u5e38\u2192\u8fd4\u56de\u8fd9\u79cd\u5f00\u53d1\u6a21\u5f0f\uff0c\u5c31\u5c3d\u91cf\u628a\u903b\u8f91\u5b8c\u5584\u4e86\uff0c\u6d4b\u8bd5\u505a\u5230\u4f4d\uff0c\u5269\u4e0b\u7684\u5f02\u5e38\u5f02\u5e38\u4e0d\u4f18\u96c5\u4e5f\u65e0\u6240\u8c13                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : autoxbc <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 js \u7684\u5f02\u5e38\u6355\u83b7\u5305\u62ec try catch \u548c promise.catch \u90fd\u662f\u7eaf\u6b63\u7684\u540c\u6b65\u5f02\u5e38\u6355\u83b7\uff0cjs \u91cc\u6ca1\u6709\u771f\u6b63\u610f\u4e49\u4e0a\u7684\u5f02\u6b65\u5f02\u5e38\u6355\u83b7<\/p>\n
    \u6211\u731c\u8bed\u8a00\u8bbe\u8ba1\u8005\u60f3\u4fdd\u8bc1\u6d41\u7a0b\u63a7\u5236\u7684\u7b80\u5355\u6027\u548c\u53ef\u9884\u6d4b\u6027\uff0c\u6362\u53e5\u8bdd\u8bf4\uff0c\u5728\u5f02\u6b65\u6d41\u7a0b\u7684\u540c\u6b65\u90e8\u5206\u6355\u83b7\u5f02\u5e38\u66f4\u4f18\u96c5                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : redbuck <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u597d\u73a9\u4e00\u70b9\u7684\u73a9\u6cd5\u53ef\u4ee5\u5199\u4e2a babel \u63d2\u4ef6\uff0c\u81ea\u52a8\u63d2\u5165\u9519\u8bef\u5904\u7406\u903b\u8f91                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : KuroNekoFan <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u5c31\u7528 promise catch \u5427
    \u6211\u59cb\u7ec8\u8ba4\u4e3a promise \u6bd4 async\/await \u7684\u8bed\u6cd5\u5728\u63a7\u5236\u7c92\u5ea6\u4e0a\u66f4\u7ec6                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"
    \u8bf7\u6559 js \u4e2d\u5982\u4f55\u4f18\u96c5\u7684\u5904\u7406\u5f02\u6b65\u5f02…<\/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\/95921"}],"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=95921"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/95921\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=95921"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=95921"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=95921"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}