{"id":53673,"date":"2024-12-03T11:28:21","date_gmt":"2024-12-03T03:28:21","guid":{"rendered":"https:\/\/fwq.ai\/blog\/53673\/"},"modified":"2024-12-03T11:28:21","modified_gmt":"2024-12-03T03:28:21","slug":"es6%e5%a4%9a%e5%b1%82%e5%af%b9%e8%b1%a1%e8%a7%a3%e6%9e%84%ef%bc%9a%e5%a6%82%e4%bd%95%e5%90%8c%e6%97%b6%e8%8e%b7%e5%8f%96%e4%b8%ad%e9%97%b4%e5%b1%82%e5%92%8c%e5%86%85%e5%b1%82%e5%af%b9%e8%b1%a1","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/53673\/","title":{"rendered":"ES6\u591a\u5c42\u5bf9\u8c61\u89e3\u6784\uff1a\u5982\u4f55\u540c\u65f6\u83b7\u53d6\u4e2d\u95f4\u5c42\u548c\u5185\u5c42\u5bf9\u8c61\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>ES6\u591a\u5c42\u5bf9\u8c61\u89e3\u6784\uff1a\u5982\u4f55\u540c\u65f6\u83b7\u53d6\u4e2d\u95f4\u5c42\u548c\u5185\u5c42\u5bf9\u8c61\uff1f <\/h1>\n<p>\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u90fd\u6253\u5f00\u8fd9\u7bc7<span style=\"color: #FF6600;, Helvetica, Arial, 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#FFFFFF\">\u6587\u7ae0<\/span>\u76f8\u5173\u7684\u5185\u5bb9\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241203\/1733209587674eadf3a62cb.jpg\" class=\"aligncenter\" title=\"ES6\u591a\u5c42\u5bf9\u8c61\u89e3\u6784\uff1a\u5982\u4f55\u540c\u65f6\u83b7\u53d6\u4e2d\u95f4\u5c42\u548c\u5185\u5c42\u5bf9\u8c61\uff1f\u63d2\u56fe\" alt=\"ES6\u591a\u5c42\u5bf9\u8c61\u89e3\u6784\uff1a\u5982\u4f55\u540c\u65f6\u83b7\u53d6\u4e2d\u95f4\u5c42\u548c\u5185\u5c42\u5bf9\u8c61\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>es\u591a\u5c42\u89e3\u6790\u83b7\u53d6\u4e2d\u95f4\u5c42\u5bf9\u8c61<\/strong><\/p>\n<p>\u95ee\u9898\u63cf\u8ff0\uff1a<\/p>\n<p>\u5728\u4f7f\u7528es6\u8bed\u6cd5\u8fdb\u884c\u591a\u5c42\u89e3\u6790\u65f6\uff0c\u9047\u5230\u8fd9\u6837\u7684\u573a\u666f\uff1a<\/p>\n<pre>const obj = {\n    person: {\n\n    }\n}\n\n\nconst {person: {name = '', age} = {}} = obj;\n\n\/\/ \u6b64\u5904\u83b7\u53d6\u4e0d\u5230person\u5bf9\u8c61\nconsole.log(person, '-----------')<\/pre>\n<p>\u5e0c\u671b\u80fd\u591f\u540c\u65f6\u83b7\u53d6\u5230\u4e2d\u95f4\u7684person\u5bf9\u8c61\uff0c\u4f46\u6309\u7167\u4e0a\u8ff0\u4ee3\u7801\u5374\u65e0\u6cd5\u5b9e\u73b0\u3002<\/p>\n<p>\u89e3\u7b54\uff1a<\/p>\n<p>\u60f3\u8981\u83b7\u53d6person\u5bf9\u8c61\uff0c\u9700\u8981\u5728\u89e3\u6790\u65f6\uff0c\u5c06\u4e2d\u95f4\u5c42\u4f5c\u4e3a\u72ec\u7acb\u5bf9\u8c61\u89e3\u6790\uff0c\u7136\u540e\u518d\u89e3\u6790\u5185\u5c42\u5bf9\u8c61\u3002<\/p>\n<p><strong>\u65b9\u6cd5\u4e00\uff1a\u4e00\u884c\u89e3\u6784<\/strong><\/p>\n<pre>const { person, person: { name, age } } = obj;\nconsole.log(person, name, age) \n\/\/ {name: '44', age: 18} '44' 18<\/pre>\n<p><strong>\u65b9\u6cd5\u4e8c\uff1a\u5d4c\u5957\u89e3\u6784<\/strong><\/p>\n<pre>const {person = {}, person: {name = '', age} = {}} = obj;\nconsole.log(person, name, age)\n\/\/ {} '' undefined<\/pre>\n<p>\u4eca\u5929\u5173\u4e8e\u300aES6\u591a\u5c42\u5bf9\u8c61\u89e3\u6784\uff1a\u5982\u4f55\u540c\u65f6\u83b7\u53d6\u4e2d\u95f4\u5c42\u548c\u5185\u5c42\u5bf9\u8c61\uff1f \u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728\u7c73\u4e91\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n<dl>\n<dt><\/dt>\n<dd>\n   Python\u5982\u4f55\u5b9e\u73b0PHP\u7684array_column\u51fd\u6570\u529f\u80fd\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>ES6\u591a\u5c42\u5bf9\u8c61\u89e3\u6784\uff1a\u5982\u4f55\u540c\u65f6\u83b7\u53d6\u4e2d\u95f4\u5c42\u548c\u5185\u5c42\u5bf9\u8c61\uff1f \u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u90fd\u6253\u5f00\u8fd9\u7bc7\u300aES6\u591a\u5c42\u5bf9\u8c61\u89e3\u6784\uff1a\u5982\u4f55\u540c\u65f6\u83b7\u53d6\u4e2d\u95f4\u5c42\u548c\u5185\u5c42\u5bf9\u8c61\uff1f \u300b\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\uff0c\u5b66\u4e0b\u53bb\u5427\uff01\u672c\u6587\u4e3b\u8981\u4f1a\u7ed9\u5927\u5bb6\u8bb2\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5927\u5bb6\u5bf9\u672c\u6587\u6709\u597d\u7684\u5efa\u8bae\u6216\u8005\u770b\u5230\u6709\u4e0d\u8db3\u4e4b\u5904\uff0c\u975e\u5e38\u6b22\u8fce\u5927\u5bb6\u79ef\u6781\u63d0\u51fa\uff01\u5728\u540e\u7eed\u6587\u7ae0\u6211\u4f1a\u7ee7\u7eed\u66f4\u65b0\u6587\u7ae0\u76f8\u5173\u7684\u5185\u5bb9\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u6709\u6240\u5e2e\u52a9\uff01 es\u591a\u5c42\u89e3\u6790\u83b7\u53d6\u4e2d\u95f4\u5c42\u5bf9\u8c61 \u95ee\u9898\u63cf\u8ff0\uff1a \u5728\u4f7f\u7528es6\u8bed\u6cd5\u8fdb\u884c\u591a\u5c42\u89e3\u6790\u65f6\uff0c\u9047\u5230\u8fd9\u6837\u7684\u573a\u666f\uff1a const obj = { person: { } } const {person: {name = &#8221;, age} = {}} = obj; \/\/ \u6b64\u5904\u83b7\u53d6\u4e0d\u5230person\u5bf9\u8c61 console.log(person, &#8216;&#8212;&#8212;&#8212;&#8211;&#8216;) \u5e0c\u671b\u80fd\u591f\u540c\u65f6\u83b7\u53d6\u5230\u4e2d\u95f4\u7684person\u5bf9\u8c61\uff0c\u4f46\u6309\u7167\u4e0a\u8ff0\u4ee3\u7801\u5374\u65e0\u6cd5\u5b9e\u73b0\u3002 \u89e3\u7b54\uff1a \u60f3\u8981\u83b7\u53d6person\u5bf9\u8c61\uff0c\u9700\u8981\u5728\u89e3\u6790\u65f6\uff0c\u5c06\u4e2d\u95f4\u5c42\u4f5c\u4e3a\u72ec\u7acb\u5bf9\u8c61\u89e3\u6790\uff0c\u7136\u540e\u518d\u89e3\u6790\u5185\u5c42\u5bf9\u8c61\u3002 \u65b9\u6cd5\u4e00\uff1a\u4e00\u884c\u89e3\u6784 const { person, person: { name, age } } = obj; console.log(person, name, age) \/\/ {name: &#8217;44&#8217;, age: 18} &#8217;44&#8217; 18 \u65b9\u6cd5\u4e8c\uff1a\u5d4c\u5957\u89e3\u6784 const [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-53673","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/53673","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=53673"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/53673\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=53673"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=53673"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=53673"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}