{"id":156510,"date":"2020-09-17T12:58:38","date_gmt":"2020-09-17T04:58:38","guid":{"rendered":"http:\/\/4563.org\/?p=156510"},"modified":"2020-09-18T12:24:54","modified_gmt":"2020-09-18T04:24:54","slug":"javascript-%e4%ba%8b%e4%bb%b6%e5%be%aa%e7%8e%af%e4%b8%8e%e4%b8%bb%e4%bb%a3%e7%a0%81%e5%85%b3%e7%b3%bb","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=156510","title":{"rendered":"JavaScript \u4e8b\u4ef6\u5faa\u73af\u4e0e\u4e3b\u4ee3\u7801\u5173\u7cfb"},"content":{"rendered":"
\n
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JavaScript \u4e8b\u4ef6\u5faa\u73af\u4e0e\u4e3b\u4ee3\u7801\u5173\u7cfb <\/h1>\n

<\/p>\n

\n
\u8cc7\u6df1\u5927\u4f6c : KyL <\/span> <\/i> 1<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n

\u4f8b\u5b50\uff1a<\/p>\n

<script type=\"text\/javascript\">      $.ajax('url', function(data) {          console.info('callback');          });       \/\/do something      console.info('done');  <\/script>  <\/pre>\n
\u5982\u679c\u6ce8\u91ca\u7684 do something \u5360\u7528\u4e86\u5f88\u957f\u65f6\u95f4\uff0c\u8d85\u8fc7\u4e86 ajax \u8fd4\u56de\u7684\u65f6\u95f4\uff0c\u90a3\u4e48\u663e\u793a\u7ed3\u679c\u6709\u6ca1\u6709\u53ef\u80fd\u662f<\/p>\n
callback done <\/pre>\n
?<\/p>\n
JS \u4e2d\u6ce8\u518c\u7684\u56de\u8c03\u51fd\u6570\uff0c\u5f53\u5bf9\u5e94\u7684\u4e8b\u4ef6\u53d1\u751f\u65f6\uff0c\u90fd\u4f1a\u88ab\u6dfb\u52a0\u5230\u4e8b\u4ef6\u961f\u5217\u4e2d\uff0c\u7531\u4e8b\u4ef6\u5faa\u73af\u4e0d\u505c\u8f6e\u8be2\u3002\u90a3\u4e48<script\/>\u4e2d\u7684”\u4e3b\u4ee3\u7801”\uff0c\u548c\u4e8b\u4ef6\u5faa\u73af\u7684\u65f6\u95f4\u8f74\u5173\u7cfb\u662f\u600e\u6837\u7684\uff1f\u662f”\u4e3b\u4ee3\u7801”\u6267\u884c\u5b8c\u6210\u540e\uff0c\u624d\u4f1a\u8fdb\u5165\u4e8b\u4ef6\u5faa\u73af\uff0c\u8fd8\u662f\u5f53\u4e8b\u4ef6\u5faa\u73af\u4e2d\u83b7\u53d6\u4e00\u4e2a\u4e8b\u4ef6\u540e\uff0c\u5c31\u4f1a\u4e2d\u65ad\u4e3b\u4ee3\u7801\u7684\u6267\u884c\uff1f<\/p>\n<\/p><\/div>\n
 \u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (14<\/span>)        <\/div>\n
 <\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : des <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u4e0d\u53ef\u80fd\uff0c\u4e0d\u4f1a\u662f\u4e2d\u65ad\u7684                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : ysc3839 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u4e2a\u4eba\u731c\u6d4b\uff0c\u53ea\u6709\u5728\u5f53\u524d\u7684 script \u4ee3\u7801\u5757\u6267\u884c\u5b8c\u540e\u624d\u4f1a\u53bb\u5904\u7406\u5728\u961f\u5217\u4e2d\u7684\u4e8b\u4ef6\u3002
    \u4ec5\u4ec5\u4e3a\u731c\u6d4b\uff0c\u6211\u6ca1\u6709\u505a\u8fc7\u4efb\u4f55\u6d4b\u8bd5\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : ayase252 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u6709\u4e00\u4e2a\u4efb\u52a1\u961f\u5217\uff0c\u5f53\u8bf7\u6c42\u56de\u6765\u7684\u65f6\u5019\u56de\u8c03\u51fd\u6570\u4f1a\u88ab\u538b\u5165\u5230\u4efb\u52a1\u961f\u5217\u91cc\u3002\u7b49\u5230\u5f53\u524d\u6267\u884c\u6808\u4e3a\u7a7a\u65f6\uff0c\u624d\u4f1a\u5230\u4efb\u52a1\u961f\u5217\u91cc\u53d6\u51fd\u6570\u6267\u884c\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
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     \u8cc7\u6df1\u5927\u4f6c : lisianthus <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u4e8b\u4ef6\u5faa\u73af\uff1a\u5148\u6267\u884c\u5b8f\u4efb\u52a1\uff0c\u518d\u6267\u884c\u5fae\u4efb\u52a1\u961f\u5217\u6240\u6709\u4efb\u52a1\uff0c\u518d\u6267\u884c\u5b8f\u4efb\u52a1\u3002ajax \u6211\u6ca1\u8bb0\u9519\u7684\u8bdd\u662f\u5fae\u4efb\u52a1\uff0c\u5728\u5b8f\u4efb\u52a1\u6267\u884c\u540e\u624d\u8c03\u7528                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : nsjs <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u4e0d\u4f1a\uff0c \u4f60\u5982\u679c\u5728 \/\/do something \u90a3\u91cc\u5199\u4e2a\u6b7b\u5faa\u73af\u5c31\u5361\u6b7b\u4e86\uff0c\u6c38\u8fdc\u4e5f\u6267\u884c\u4e0d\u5230 done \u90a3\u91cc
    ajax \u90a3\u91cc\u53ea\u662f\u628a\u4f60\u7684\u5f02\u6b65\u51fd\u6570\u653e\u5165\u5fae\u961f\u5217
    \u5427\uff1f                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : crs0910 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
     <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : lin07hui <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 const asyncFunc = () => 
     new Promise(resolve => {
     setTimeout(resolve(“data”), 500);
     });<\/p>\n
    (async () => {
     asyncFunc().then(() => {
     console.log(“async callback”);
     });
     console.log(“async running”)<\/p>\n
     \/\/ do something
     await asyncFunc().then(() => {
     console.log(“sync callback”);
     });<\/p>\n
     console.log(“done”);
    })();<\/p>\n
    \/\/ \u6253\u5370\uff1a
    \/\/ async running
    \/\/ async callback
    \/\/ sync callback
    \/\/ done                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : cheese <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u5173\u952e\u8bcd \u4e8b\u4ef6\u5faa\u73af \u5b8f\u4efb\u52a1 \u5fae\u4efb\u52a1\u3002 \u4f60\u8bf4\u7684\u60c5\u51b5\u662f\u4e0d\u4f1a\u51fa\u73b0\u7684                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
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     \u8cc7\u6df1\u5927\u4f6c : ChanKc <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u6ca1\u6709\u53ef\u80fd                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
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     \u8cc7\u6df1\u5927\u4f6c : ChanKc <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 JavaScript \u603b\u662f run to finish\uff0c\u5f53\u524d\u6267\u884c\u6808\u662f do something \u6240\u5728\u7684\u8fd9\u4e2a\u51fd\u6570\uff0c\u6267\u884c\u5b8c\u4e86\u624d\u4f1a\u53bb\u505a micro task                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : ryanlid <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u4e0d\u4f1a<\/p>\n
    \u5728\u4e8b\u4ef6\u5faa\u73af\u4e2d\uff0c\u4e00\u6b21\u53ea\u5904\u7406\u4e00\u4e2a\u4efb\u52a1\uff0c\u4e00\u4e2a\u4efb\u52a1\u5f00\u59cb\u540e\u76f4\u5230\u5b8c\u6210\uff0c\u4e0d\u4f1a\u88ab\u5176\u4ed6\u4efb\u52a1\u4e2d\u65ad\u3002<\/p>\n
    \u63a8\u8350 \u53ef\u4ee5\u770b\u4e00\u4e0b \u300a JavaScript \u5fcd\u8005\u79d8\u7c4d\u300b\u7b2c 13 \u7ae0 \"JavaScript <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : KyL <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @ChanKc \u90a3\u4e48\u5728 Node REPL \u6216\u8005 Chrome DevTools \u4e2d\uff0c\u8f93\u5165<\/p>\n
    $.ajax(“url”, function() {console.info(“callback”);});
    \u5c31\u4f1a\u7acb\u523b\u6253\u5370 callback\uff0c\u800c\u4e0d\u4f1a\u7b49\u5230\u4e0b\u4e00\u53e5
    console.info(“done”);
    \u8f93\u5165\u5e76\u6267\u884c\u4e4b\u540e\u624d\u4f1a callback \u3002\u8fd9\u4e2a\u662f\u7531\u4e8e\u811a\u672c\u6587\u4ef6\u6267\u884c\u548c\u5b9e\u65f6\u73af\u5883\u7684\u5dee\u5f02\u9020\u6210\u7684\u5417\uff1f                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : ChanKc <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @KyL \u4f60\u628a done \u8fd9\u53e5\u52a0\u5230\u4e0a\u9762 ajax \u7684\u5206\u53f7\u540e\u9762\u8bd5\u8bd5\uff1f                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : ChanKc <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @KyL \u6211\u4e0d\u63d0\u5021\u6b7b\u8bb0\u7b54\u6848\uff0c\u601d\u8003\u51e0\u4e2a\u95ee\u9898<\/p>\n
    1 \u5982\u679c\u53ef\u4ee5\u51fa\u73b0\u4f60\u4e3b\u5e16\u63d0\u5230\u7684\u60c5\u51b5\uff0c\u662f\u4e0d\u662f\u610f\u5473\u7740\u9700\u8981\u957f\u65f6\u95f4\u6267\u884c\u7684\u540c\u6b65\u4ee3\u7801\u53ef\u4ee5\u88ab\u5f02\u6b65\u4ee3\u7801\u4e2d\u65ad\uff1f
    2 \u5982\u679c 1 \u6210\u7acb\uff0c\u90a3\u7a0b\u5e8f\u5458\u5c31\u4e0d\u7528\u8d39\u52b2\u601d\u8003\u8c03\u5ea6\u4e86\uff0c\u76f4\u63a5\u4ea4\u7ed9 js \u5f15\u64ce\u667a\u80fd\u8c03\u5ea6\u5c31\u597d\uff1f
    3 \u5982\u679c 1 \u6210\u7acb\uff0c\u600e\u4e48\u6837\u4fdd\u8bc1\u67d0\u4e9b\u4ee3\u7801\u80fd\u591f\u5728\u5f02\u6b65\u4ee3\u7801\u4e4b\u524d\u6267\u884c\uff1f
    4 \u5982\u679c 1 \u6210\u7acb\uff0c\u5982\u4f55\u5f02\u6b65\u4ee3\u7801\u548c\u540c\u6b65\u4ee3\u7801\u90fd\u60f3\u8981\u6539\u53d8\u67d0\u4e2a\u53d8\u91cf\uff0c\u6bd4\u65b9\u8bf4\u90fd\u7ed9\u67d0\u4e2a\u53d8\u91cf foo \u8d4b\u503c\uff0c\u5982\u4f55\u89e3\u51b3\u4ed6\u4eec\u7684\u7ade\u4e89\u5173\u7cfb\uff1f
    5 \u601d\u8003\u4e00\u4e0b\u5230\u5e95$.ajax \u65f6\u7528\u5230\u4e86\u51e0\u4e2a\u7ebf\u7a0b\uff1f\u56de\u8c03\u4ee3\u7801\u548c\u540c\u6b65\u4ee3\u7801\u90fd\u5728\u54ea\u4e9b\u7ebf\u7a0b\u91cc\u6267\u884c\uff1f                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"
    JavaScript \u4e8b\u4ef6\u5faa\u73af\u4e0e\u4e3b…<\/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\/156510"}],"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=156510"}],"version-history":[{"count":1,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/156510\/revisions"}],"predecessor-version":[{"id":156512,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/156510\/revisions\/156512"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=156510"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=156510"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=156510"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}