{"id":85070,"date":"2020-03-26T00:28:40","date_gmt":"2020-03-25T16:28:40","guid":{"rendered":"http:\/\/4563.org\/?p=85070"},"modified":"2020-03-26T00:28:40","modified_gmt":"2020-03-25T16:28:40","slug":"%e5%85%b3%e4%ba%8e%e8%af%8d%e6%b3%95%e4%bd%9c%e7%94%a8%e5%9f%9f%e5%92%8c%e9%97%ad%e5%8c%85%e7%9a%84%e4%b8%80%e7%82%b9%e7%96%91%e9%97%ae","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=85070","title":{"rendered":"\u5173\u4e8e\u8bcd\u6cd5\u4f5c\u7528\u57df\u548c\u95ed\u5305\u7684\u4e00\u70b9\u7591\u95ee"},"content":{"rendered":"
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\u5173\u4e8e\u8bcd\u6cd5\u4f5c\u7528\u57df\u548c\u95ed\u5305\u7684\u4e00\u70b9\u7591\u95ee <\/h1>\n

<\/p>\n

\n
\u8cc7\u6df1\u5927\u4f6c : Aloehuang <\/span> <\/i> 8<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n

let a = 0;<\/p>\n

function addone() { let a = 10; addtwo(); }<\/p>\n

function addtwo() { let a = 20; addthree(); }<\/p>\n

function addthree() { console.log(a); }<\/p>\n

addone();<\/p>\n

\u7ed3\u679c\u4e3a 0\uff0c\u4e3a\u4ec0\u4e48\u4e0d\u662f 20 \u5462\uff1f\u4e0d\u662f\u8bf4\u4e00\u5c42\u4e00\u5c42\u4ece\u8c03\u7528\u4e0a\u4e0b\u6587\u67e5\u627e\u76f4\u5230\u5168\u5c40\u4e0a\u4e0b\u6587\u5417\uff1f<\/p>\n<\/p><\/div>\n

\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (38<\/span>) <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : YadongZhang <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    log \u7684\u662f\u5168\u5c40\u7684 a\uff0clet \u548c var \u662f\u4e0d\u662f\u6709\u533a\u522b <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Aloehuang <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u6211\u662f\u4ece\u8fd9\u91cc\u627e\u5230\u7684\u8bcd\u6cd5\u4f5c\u7528\u57df\u548c\u95ed\u5305
    https:\/\/blog.hhking.cn\/2018\/09\/08\/i-never-understood-javascript-closures\/ <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : YadongZhang <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @Aloehuang #2 javascript.info \u4e86\u89e3\u4e00\u4e0b\uff0c\u6709\u56fe\u89e3 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Aloehuang <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @YadongZhang var \u548c let \u5728\u8fd9\u91cc\u6ca1\u6709\u533a\u522b\uff0c\u7ed3\u679c\u90fd\u662f 0.
    \u4f60\u7ed9\u7684\u7f51\u7ad9\u5185\u5bb9\u592a\u591a\u4e86\uff0c\u627e\u4e0d\u5230\u5177\u4f53\u8981\u67e5\u627e\u7684\u95ee\u9898 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : rabbbit <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    js \u7684\u4f5c\u7528\u57df\u662f\u8bcd\u6cd5\u4f5c\u7528\u57df,\u4e0d\u662f\u52a8\u6001\u4f5c\u7528\u57df. <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : secondwtq <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4e3b\u6240\u671f\u671b\u7684\u884c\u4e3a\u6070\u6070\u662f Lexical Scoping \u7684\u53cd\u9762\uff0c\u5373 Dynamic Scoping
    \u628a\u8fd9\u4e24\u4e2a\u7684\u5b9a\u4e49\u90fd\u627e\u6765\uff0c\u5bf9\u6bd4\u4e00\u4e0b\u5c31\u80fd\u660e\u767d\u4e86 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : YadongZhang <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @Aloehuang #4 \u6709\u641c\u7d22\u6846\uff0c\u5173\u952e\u8bcd Closure\uff0caddThree() \u8c03\u7528\u7684\u662f\u5168\u5c40 a\uff0c\u51fd\u6570\u91cc\u7684\u53d8\u91cf\u53ea\u80fd\u5728\u51fd\u6570\u5757\u91cc\u4f7f\u7528\uff0clog \u627e\u4e0d\u5230\u7684 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : ljpCN <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u8fd9\u4e2a\u4f8b\u5b50\u5e94\u8be5\u6ca1\u6709\u6d89\u53ca\u95ed\u5305\u5427\uff0c\u95ed\u5305\u4e3b\u8981\u662f\u628a\u4e00\u4e9b\u5c40\u90e8\u4f5c\u7528\u57df\u7684\u53d8\u91cf\u4fdd\u6301\u7740\u4e0d\u88ab\u56de\u6536\u6389\u3002
    \u7136\u540e\uff0c\u8fd9\u4e2a\u4f60\u53ea\u770b\u8bcd\u6cd5\u4f5c\u7528\u57df\u5c31\u884c\u4e86\uff0c\u53ea\u6709 this \u90a3\u79cd\u4e1c\u897f\u624d\u8981\u770b\u8fd0\u884c\u65f6\u7684\u8c03\u7528\u5427\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Aloehuang <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @rabbbit \u6709\u6ca1\u6709\u8fd9\u65b9\u9762\u7684\u6587\u7ae0\u53ef\u4ee5\u770b\u770b\uff1f\u60a8\u8fd9\u6837\u8bf4\u4e0d\u662f\u7279\u522b\u7406\u89e3 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : rabbbit <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u8bcd\u6cd5\u4f5c\u7528\u57df: \u5728\u54ea\u5b9a\u4e49,\u5728\u54ea\u5f80\u4e0a\u627e\u53d8\u91cf
    \u9759\u6001\u4f5c\u7528\u57df: \u5728\u54ea\u8c03\u7528,\u5728\u54ea\u5f80\u4e0a\u627e\u53d8\u91cf <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : rabbbit <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u9759\u6001\u4f5c\u7528\u57df -> \u52a8\u6001\u4f5c\u7528\u57df <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : rabbbit <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4e0a\u8fb9\u90a3\u4e2a”\u9759\u6001\u4f5c\u7528\u57df”\u5199\u9519\u4e86<\/p>\n

    \u8bcd\u6cd5(\u9759\u6001)\u4f5c\u7528\u57df: \u5728\u54ea\u5b9a\u4e49,\u5728\u54ea\u5f80\u4e0a\u627e\u53d8\u91cf
    \u52a8\u6001\u4f5c\u7528\u57df: \u5728\u54ea\u8c03\u7528,\u5728\u54ea\u5f80\u4e0a\u627e\u53d8\u91cf <\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : Dyon <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5168\u5c40\u6709\u4e00\u4e2a a\uff0c\u524d\u4e24\u4e2a\u51fd\u6570\u53c8\u5728\u81ea\u5df1\u7684\u4f5c\u7528\u4e8e\u4e2d\u5b9a\u4e49\u4e86\u4e00\u4e2a\u65b0\u7684 a\uff0c\u5f53\u4ed6\u4eec\u8c03\u7528\u540d\u4e3a a \u7684\u53d8\u91cf\u7684\u65f6\u5019\u4f1a\u73b0\u5728\u81ea\u5df1\u7684\u4f5c\u7528\u57df\u4e2d\u627e\uff0c\u627e\u5230\u4e86\u5c31\u8c03\u7528\u5b83\uff0c\u8fd9\u65f6\u5019\u5168\u5c40\u7684\u90a3\u4e2a a \u5c31\u88ab\u5ffd\u7565\u4e86\u3002\u7b2c\u4e09\u4e2a\u51fd\u6570\u7684\u4f5c\u7528\u57df\u4e2d\u6ca1\u6709\u540d\u4e3a a \u7684\u53d8\u91cf\uff0c\u4e8e\u662f\u5b83\u8c03\u7528\u4e86\u5168\u5c40\u7684 a \u3002\u8fd9\u91cc\u7528 let \u8fd8\u662f var \u7ed3\u679c\u662f\u4e00\u6837\u7684\u56e0\u4e3a\u8fd9\u91cc\u90fd\u662f\u51fd\u6570\uff0c\u5982\u679c\u662f\u5728 for \u7b49\u5757\u7ea7\u8bed\u6cd5\u4e2d\uff0clet \u548c var \u624d\u4f1a\u4e0d\u4e00\u6837\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Aloehuang <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @secondwtq \u8c22\u8c22\uff0c\u4e00\u9488\u89c1\u8840 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Aloehuang <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @Dyon \u90a3\u7b2c\u4e09\u4e2a\u51fd\u6570\u4e3a\u4ec0\u4e48\u4e0d\u4ece\u7b2c\u4e8c\u4e2a\u51fd\u6570\u91cc\u9762\u627e a <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : mrcode <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    JavaScript \u662f\u8bcd\u6cd5\u4f5c\u7528\u57df\uff0c\u4e0d\u662f\u52a8\u6001\u4f5c\u7528\u57df <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : YadongZhang <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @Aloehuang #15 \u5168\u5c40 a \u6ce8\u91ca\u6389\uff0c\u5176\u4ed6\u4e24\u4e2a\u51fd\u6570\u4f53\u90fd\u52a0\u4e00\u4e2a console.log(a) \u5c31\u6709\u7b54\u6848\u4e86 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : Dyon <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @Aloehuang \u54e6\u521a\u521a\u8bef\u89e3\u4e3b\u7684\u95ee\u9898\u4e86\uff0c\u4e3b\u5e94\u8be5\u662f\u60f3\u95ee\u52a8\u6001\u4f5c\u7528\u57df\u4e0e\u9759\u6001\u4f5c\u7528\u57df\uff0c\u4e0d\u8fc7\u5373\u4f7f\u4e0d\u4e86\u89e3\u8fd9\u4e9b\uff0c\u6839\u636e\u8fd0\u884c\u7ed3\u679c\u4e5f\u80fd\u63a8\u65ad\u51fa\u6765 js \u7684\u4f5c\u7528\u57df\u94fe\u662f\u6839\u636e\u5b9a\u4e49\u7684\u4f4d\u7f6e\u786e\u5b9a\u800c\u975e\u8c03\u7528\u7684\u4f4d\u7f6e\uff0c\u662f\u9759\u6001\u7684 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : huangbangsheng <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u9ad8\u6027\u80fd JavaScript \u5f00\u7bc7\u89e3\u91ca\u4e86\u4f60\u7684\u95ee\u9898 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : zhengjian <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @YadongZhang \u5168\u5c40 a \u6ce8\u91ca\u6389\u5c31\u62a5\u9519\u4e86 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : YadongZhang <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @zhengjian #20 \u6240\u4ee5\u8bf4 addThree() \u51fd\u6570\u91cc\u7684 a \u548c\u5176\u4ed6\u4e24\u4e2a\u51fd\u6570\u4f53\u7684 a \u6ca1\u6709\u5173\u7cfb <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : Junh <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @ljpCN \u5efa\u8bae\u91cd\u65b0\u770b\u95ed\u5305 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : whoami9894 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4f60\u5bf9\u6bd4\u4e00\u4e0b<\/p>\n

    let a = 0;
    let addone = () => { let a = 10; addtwo(); }
    let addtwo = () => console.log(a);
    addone()<\/p>\n

    \/*===*\/<\/p>\n

    let a = 0;
    let addone = () => { let a = 10; let addtwo = () => console.log(a); addtwo(); }
    addone() <\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : xiaoming1992 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4e3a\u4ec0\u4e48\u8981\u7814\u7a76\u8fd9\u6837\u7684\u4e1c\u897f\uff1f\u660e\u660e\u4e00\u4e2a use strict \u5c31\u80fd\u89e3\u51b3\u7684\u95ee\u9898 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : ZehaiZhang <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u9762\u8bd5\u9898\u5427\uff0c\u8003\u5bdf\u5bf9 js \u4f5c\u7528\u57df\u7684\u7406\u89e3= <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : leihongtao1230 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4f5c\u7528\u57df\u548c\u6267\u884c\u6808\u4e0d\u662f\u4e00\u4e2a\u6982\u5ff5\u554a <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : iMusic <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u8bcd\u6cd5\u4f5c\u7528\u57df\u662f\u5728\u5199\u4ee3\u7801\u65f6\uff0c\u51fd\u6570\u7684\u4f4d\u7f6e\u786e\u5b9a\u7684 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : autoxbc <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @Junh #22 \u8fd9\u91cc\u786e\u5b9e\u6ca1\u6709\u95ed\u5305\uff0c\u4e0d\u8981\u770b\u5230\u95ed\u5408\u7ed3\u6784\u5305\u7740\u4e00\u4e2a\u53d8\u91cf\u5c31\u8bf4\u95ed\u5305 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : ljpCN <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @Junh <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : zackwan95 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4f60\u628a\u4ee3\u7801\u5199\u6210\u8fd9\u6837\u5728\u6211\u4eec\u7ec4 code review \u90fd\u8fc7\u4e0d\u53bb\uff0c\u6211\u6700\u4e0d\u660e\u767d\u56fd\u5185\u7684\u4e00\u70b9\u5c31\u662f\u62ff\u8fd9\u4e9b\u8981\u4e48\u662f\u9519\u8bef\u8981\u4e48\u662f\u6781\u5dee\u7684\u4ee3\u7801\u5f53\u4f5c\u8003\u9898\u3002\u552f\u4e00\u7684\u7b54\u6848\u4e0d\u5e94\u8be5\u662f\u6c38\u8fdc\u522b\u5199\u6210\u8fd9\u6837\u4e48 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : xieranmaya <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u51fd\u6570\u91cc\u5bf9\u53d8\u91cf\u7684\u8bbf\u95ee\u4ec5\u4ec5\u53d6\u51b3\u4e8e\u51fd\u6570\u7684\u5b9a\u4e49\u4f4d\u7f6e\uff0c\u4e0d\u53d6\u51b3\u4e8e\u51fd\u6570\u7684\u8c03\u7528\u4f4d\u7f6e\uff08\u8fd9\u624d\u662f\u8bcd\u6cd5\u4f5c\u7528\u57df\u7684\u5173\u952e\uff09\u3002
    \u5177\u4f53\u6765\u8bf4\uff0c\u4f60\u7684 addthree \u51fd\u6570\u4e0d\u7ba1\u5728\u54ea\u8c03\u7528\uff08\u5c31\u7b97\u662f\u88ab\u5f15\u64ce\u8c03\u7528\uff09\uff0c\u4ed6\u90fd\u4e4b\u8bbf\u95ee\u5230\u5916\u9762\u8fd9\u4e2a a \u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Aloehuang <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @whoami9894 \u8c22\u8c22\uff0c\u4e0a\u5348\u62bd\u7a7a\u7ee7\u7eed\u5b66\u4e60\u4e86\u4e0b\uff0c\u7406\u89e3\u4e86\u3002\u6211\u5176\u5b9e\u662f\u628a\u53d8\u91cf\u67e5\u627e\u7684\u539f\u7406\uff08\u8bcd\u6cd5\u4f5c\u7528\u57df\uff09\u548c\u6267\u884c\u6808\u3001\u6267\u884c\u4e0a\u4e0b\u6587\u6df7\u5728\u4e00\u8d77\u4e86\u3002
    \u4f60\u4e0a\u9762\u90a3\u6bb5\u4ee3\u7801\u5728 addtwo \u4e2d\u6ca1\u6709\u627e\u5230 a\uff0c\u4e8e\u662f\u4ece\u7236\u7ea7\u6267\u884c\u4e0a\u4e0b\u6587\u5bfb\u627e\uff0c\u4f46\u8fd9\u4e2a\u7236\u7ea7\u6267\u884c\u4e0a\u4e0b\u6587\u6709\u4e24\u79cd\u7406\u89e3\u65b9\u5f0f\uff1a\u7b2c\u4e00\u79cd\uff0c\u6267\u884c\u4e0a\u4e0b\u6587\u6808\u5c42\u9762\u4e0a\u7684\u7236\u7ea7\uff0c\u4e5f\u5c31\u662f\u4ece\u54ea\u4e2a\u51fd\u6570\u8c03\u7528\u90a3\u4e48\u8be5\u51fd\u6570\u5c31\u662f\u7236\u7ea7\u6267\u884c\u4e0a\u4e0b\u6587\uff1b\u7b2c\u4e8c\u79cd\uff0c\u4f5c\u7528\u57df\u94fe\u5c42\u9762\u4e0a\u7684\u7236\u7ea7\uff08\u6216\u8005\u8bcd\u6cd5\u5c42\u9762\u4e0a\u7684\u7236\u7ea7\uff09\u3002\u867d\u7136\u6709\u6267\u884c\u4e0a\u4e0b\u6587\u6808\uff0c\u6bcf\u8c03\u7528\u4e00\u4e2a\u51fd\u6570\u5c31\u751f\u6210\u65b0\u7684\u6267\u884c\u4e0a\u4e0b\u6587\u5e76\u538b\u5165\u6808\u4e2d\uff0c\u4f46\u662f\u4f5c\u7528\u57df\u94fe\u5e76\u4e0d\u662f\u548c\u6267\u884c\u4e0a\u4e0b\u6587\u6808\u4e00\u4e00\u5bf9\u5e94\u7684\uff0c\u4f5c\u7528\u57df\u94fe\u7531\u8bcd\u6cd5\u4f5c\u7528\u57df\u5bfc\u51fa\uff0c\u901a\u5e38\u4f5c\u7528\u57df\u94fe\u957f\u5ea6\u5c0f\u4e8e\u7b49\u4e8e\u6267\u884c\u4e0a\u4e0b\u6587\u6808\u7684\u957f\u5ea6\u3002
    \u4e0a\u9762\u90a3\u6bb5\u4ee3\u7801\u5728 addtwo \u4e2d\u6ca1\u6709\u627e\u5230 a\uff0c\u5c31\u4ece\u7236\u7ea7\u6267\u884c\u4e0a\u4e0b\u6587\u627e\uff0c\u4f46 addone \u548c addtwo \u5b9e\u9645\u4e0a\u5728\u8bcd\u6cd5\u5c42\u9762\u4e0a\u662f\u540c\u7ea7\u7684\uff0c\u6240\u4ee5\u8fd9\u4e2a\u7236\u7ea7\u6267\u884c\u4e0a\u4e0b\u6587\u5c31\u662f\u5168\u5c40\u6267\u884c\u4e0a\u4e0b\u6587\u3002\u81ea\u7136\u8f93\u51fa 0 \u3002
    \u4e0b\u9762\u7684\u7236\u7ea7\u6267\u884c\u4e0a\u4e0b\u6587\u662f addone \u51fd\u6570\u6267\u884c\u65f6\u521b\u5efa\u7684\u6267\u884c\u4e0a\u4e0b\u6587\uff0c\u6240\u4ee5\u8f93\u51fa 10 \u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Aloehuang <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @xiaoming1992 \u4e0d\u662f use strict \u7684\u95ee\u9898 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Aloehuang <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @leihongtao1230 \u5bf9\u554a\uff0c\u6211\u641e\u6df7\u4e86\uff0c\u73b0\u5728\u6e05\u6670\u4e86\u5f88\u591a\u3002\u5927\u4f6c\u4e00\u9488\u89c1\u8840\u8bf4\u51fa\u4e86\u6211\u8ff7\u60d1\u7684\u5730\u65b9\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Aloehuang <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @zackwan95 \u771f\u5199\u4ee3\u7801\u80af\u5b9a\u4e0d\u4f1a\u8fd9\u6837\u5199\u554a\uff0c\u53ea\u662f\u9762\u5bf9\u548c\u81ea\u5df1\u9884\u671f\u4e0d\u76f8\u7b26\u7684\u7ed3\u679c\u65f6\uff0c\u662f\u4e0d\u662f\u5e94\u8be5\u63a2\u7a76\u4e00\u4e0b\u4e3a\u4ec0\u4e48\u548c\u9884\u671f\u4e0d\u7b26\u5462\u3002\u8981\u662f\u771f\u5199\u4ee3\u7801\u8fd9\u6837\u5199\u81ea\u5df1\u90fd\u4f1a\u75af\u6389\uff0c\u65e0\u65f6\u65e0\u523b\u4e0d\u8981\u6ce8\u610f js \u8bed\u8a00\u7684\u89c4\u5219\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : Junh <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @autoxbc \u4eb2\uff0c\u8fd9\u91cc\u5efa\u8bae\u60a8\u770b\u4e0b\u95ed\u5305\u7684\u5b9a\u4e49\u5462 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : lbw <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u8bcd\u6cd5\u4f5c\u7528\u57df\u662f compiling\/parsing \u671f\u95f4\u786e\u5b9a\uff0c\u800c\u4e0d\u662f\u8fd0\u884c\u65f6 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : xiaoming1992 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @Aloehuang \u597d\u5427\uff0c\u6211\u539f\u672c\u4ee5\u4e3a”use strict”\u4f1a\u7ba1\u8fd9\u4e9b\uff0c\u539f\u6765\u4e0d\u7ba1\uff0c\u90a3\u5c31\u6dfb\u52a0 eslint \u89c4\u5219\uff0cno-redeclare \u3002<\/p>\n

    \u6211\u7684\u610f\u601d\u662f\uff0c\u4e0d\u7ba1\u7ed3\u679c\u600e\u4e48\u6837\uff0c\u8fd9\u6837\u7684\u4ee3\u7801\u6839\u672c\u5c31\u4e0d\u5e94\u8be5\u51fa\u73b0\u3002 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n","protected":false},"excerpt":{"rendered":"

    \u5173\u4e8e\u8bcd\u6cd5\u4f5c\u7528\u57df\u548c\u95ed\u5305\u7684\u4e00\u70b9\u7591\u95ee \u8cc7…<\/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\/85070"}],"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=85070"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/85070\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=85070"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=85070"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=85070"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}