{"id":313183,"date":"2021-01-17T13:52:50","date_gmt":"2021-01-17T05:52:50","guid":{"rendered":"http:\/\/4563.org\/?p=313183"},"modified":"2021-01-17T13:52:50","modified_gmt":"2021-01-17T05:52:50","slug":"%e8%bf%99%e7%a7%8d%e5%b8%a6%e7%89%b9%e6%ae%8a%e5%ad%97%e7%ac%a6%e5%b1%9e%e6%80%a7%e5%90%8d%e6%80%8e%e4%b9%88%e7%94%a8-es6-%e8%a7%a3%e6%9e%84%e8%b5%8b%e5%80%bc%e5%95%8a%ef%bc%9f","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=313183","title":{"rendered":"\u8fd9\u79cd\u5e26\u7279\u6b8a\u5b57\u7b26\u5c5e\u6027\u540d\u600e\u4e48\u7528 es6 \u89e3\u6784\u8d4b\u503c\u554a\uff1f"},"content":{"rendered":"
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\u8fd9\u79cd\u5e26\u7279\u6b8a\u5b57\u7b26\u5c5e\u6027\u540d\u600e\u4e48\u7528 es6 \u89e3\u6784\u8d4b\u503c\u554a\uff1f <\/h1>\n

<\/p>\n

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\u8cc7\u6df1\u5927\u4f6c : az22c <\/span> <\/i> 4<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n

\u4e00\u822c\u6765\u8bf4\u89e3\u6784\u8d4b\u503c\u5c31\u662f\u8fd9\u6837\uff1a<\/p>\n

const originObj = {   foo: 'bar' } const { foo } = origin <\/code><\/pre>\n
\u4f46\u662f\u8fd9\u79cd\u600e\u4e48\u89e3\u6784\u8d4b\u503c\u554a\uff1f<\/p>\n
const originObj = {   'extend\/foo': 'bar' } <\/code><\/pre>\n
( \u8fd9\u6837\u6709\u70b9\u5947\u602a\uff0c\u591a\u4e86\u4e00\u4e2a\u53d8\u91cf\u540d\u4ee5\u5b9e\u73b0\uff0c\u4f46\u662f\u8d77\u7801\u80fd\u7528\uff1a [\u6709\u70b9\u4e0d\u723d\u800c\u5df2] )<\/p>\n
const { ['extend\/foo']: foo2 } = originObj <\/code><\/pre>\n<\/p><\/div>\n
 \u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (6<\/span>)        <\/div>\n
 <\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : autoxbc <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u90a3\u79cd\u5947\u602a\u7684\u5199\u6cd5\u624d\u662f\u7ed3\u6784\u8d4b\u503c\u7684\u672c\u4f53\uff0c\u90a3\u4e2a\u770b\u8d77\u6765\u50cf\u672c\u4f53\u7684\u5176\u5b9e\u662f\u8bed\u6cd5\u7cd6\uff0c\u7cd6\u80fd\u5403\u5c31\u5403\uff0c\u4e0d\u7b26\u5408\u6761\u4ef6\u5c31\u4e0d\u5403                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : ssshooter <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u4e0d\u662f const { ‘extend\/foo’: foo2 } = originObj \u5c31\u53ef\u4ee5\u4e86\u5417\uff1f                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : az22c <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @autoxbc \u725b\u903c \u5b66\u4e60\u4e86
    @ssshooter \u662f\u53ef\u4ee5\uff0c\u4f46\u591a\u51fa\u4e00\u4e2a foo2 \u53d8\u91cf\u540d\uff0c\u641c\u7d22\u66ff\u6362\u7ef4\u62a4\u8d77\u6765\u9ebb\u70e6\u4e00\u70b9\u70b9\u800c\u5df2                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : zedhugh <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @az22c extend\/foo \u8fd9\u4e2a\u7b26\u53f7\u518d js \u91cc\u9762\u4e5f\u4e0d\u80fd\u4f5c\u4e3a\u53d8\u91cf\u540d\u554a                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : no1xsyzy <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 #2 \u662f\u5728\u8bf4\u4e0d\u9700\u8981\u52a0\u4e2d\u62ec\u53f7\u3002\u5b57\u7b26\u4e32\u5b57\u9762\u91cf\u786e\u5b9e\u4e0d\u7528\u52a0                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : libook <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u5728 JavaScript \u4e2d\uff0c\u6807\u8bc6\u7b26\u53ea\u80fd\u5305\u542b\u5b57\u6bcd\u6216\u6570\u5b57\u6216\u4e0b\u5212\u7ebf\uff08\u201c_\u201d\uff09\u6216\u7f8e\u5143\u7b26\u53f7\uff08\u201c$\u201d\uff09\uff0c\u4e14\u4e0d\u80fd\u4ee5\u6570\u5b57\u5f00\u5934\u3002<\/p>\n
    \u4e3b\u6df7\u6dc6\u4e86\u5b57\u6bb5\u540d\u548c\u6807\u8bc6\u7b26\uff0c\u8fd9\u662f\u4e24\u4e2a\u4e0d\u540c\u7684\u6982\u5ff5\uff0c\u4f60\u5728\u5bf9\u8c61\u91cc\u7528\u7684\u662f\u5b57\u6bb5\u540d\uff0c\u4f60\u5728\u7a0b\u5e8f\u4ee3\u7801\u91cc\u58f0\u660e\u53d8\u91cf\u5e38\u91cf\u7528\u7684\u662f\u6807\u8bc6\u7b26\uff0c\u89e3\u6784\u53ea\u662f\u4e00\u4e2a\u65b9\u4fbf\u628a\u5b57\u6bb5\u503c\uff08\u6216\u5f15\u7528\uff09\u8d4b\u503c\u7ed9\u540c\u540d\u6807\u8bc6\u7b26\u7684\u8bed\u6cd5\u7cd6\u800c\u5df2\uff0c\u5e76\u4e0d\u662f\u8bf4\u4e24\u8005\u662f\u4e00\u6837\u7684\u4e1c\u897f\u3002\u5c31\u50cf\u662f\u5b57\u7b26\u4e32\u8f6c\u6570\u503c\u7684\u65f6\u5019\u4e5f\u662f\u53ea\u652f\u6301\u7b26\u5408\u6570\u503c\u4e66\u5199\u89c4\u5219\u7684\u5b57\u7b26\u4e32\uff0c\u5426\u5219\u5c31\u4f1a\u5f97\u5230 NaN \u3002<\/p>\n
    \u53ef\u4ee5\u601d\u8003\u4e00\u4e0b\uff0c\u5982\u679c\u81ea\u5df1\u8bbe\u8ba1\u4e00\u4e2a JS \u5f15\u64ce\uff0c\u5982\u4f55\u89e3\u6790 “` const { extend\/foo } = originObj; ““\u8fd9\u79cd\u8bed\u53e5\uff0c\u8981\u89e3\u6790\u6210\u9884\u671f\u7684\u89e3\u6784\u7ed3\u679c\uff0c\u4f46\u53c8\u4e0d\u4f1a\u5f15\u8d77\u5176\u4ed6\u8bed\u6cd5\u6b67\u4e49\u3002<\/p>\n
    \u6240\u4ee5\u6309\u7167 JS \u5bf9\u4e8e\u5b57\u6bb5\u540d\u548c\u6807\u8bc6\u7b26\u7684\u5b9a\u4e49\u6765\u8bf4\uff0c\u5728\u4f7f\u7528\u89e3\u6784\u8bed\u6cd5\u524d\u6700\u597d\u786e\u4fdd\u5b57\u6bb5\u540d\u7684\u547d\u540d\u89c4\u5219\u7b26\u5408\u6807\u8bc6\u7b26\u547d\u540d\u89c4\u5219\uff0c\u5426\u5219\u5c31\u4e0d\u53ef\u80fd\u521b\u5efa\u540c\u540d\u7684\u6807\u8bc6\u7b26\uff08\u5c31\u50cf\u4f60\u81ea\u5df1\u76f4\u63a5\u5199“`const extend\/foo = ‘bar’;“`\u4e00\u6837\u4f1a\u62a5\u9519\uff09\u3002<\/p>\n
    \u5982\u679c\u53ea\u6709\u4e00\u4e2a\u5b57\u6bb5\u8981\u62ff\uff0c\u5b8c\u5168\u53ef\u4ee5\u76f4\u63a5“` const foo2 = originObj[‘extend\/foo’]; “`\u8fd9\u6837\u65e2\u7b80\u5355\uff0c\u53ef\u8bfb\u6027\u4e5f\u9ad8\u3002<\/p>\n
    \u8bed\u8a00\u7684\u4efb\u4f55\u7279\u6027\u90fd\u662f\u6709\u5176\u9002\u7528\u573a\u666f\u548c\u4e0d\u9002\u7528\u573a\u666f\u7684\uff0c\u5426\u5219\u65e7\u7279\u6027\u5c31\u6ca1\u6709\u5b58\u5728\u7684\u610f\u4e49\u4e86\uff1b\u540c\u6837\u7684\uff0c\u89e3\u6784\u7279\u6027\u4e5f\u4e0d\u662f\u8bf4\u5927\u5bb6\u90fd\u4e0d\u8981\u7528\u975e\u89e3\u6784\u7684\u5199\u6cd5\uff0c\u800c\u662f\u65b9\u4fbf\u5c31\u7528\u3001\u4e0d\u65b9\u4fbf\u5c31\u4e0d\u7528\u3002                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"
    \u8fd9\u79cd\u5e26\u7279\u6b8a\u5b57\u7b26\u5c5e\u6027\u540d\u600e\u4e48\u7528 es6…<\/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\/313183"}],"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=313183"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/313183\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=313183"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=313183"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=313183"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}