{"id":26160,"date":"2024-11-24T08:28:03","date_gmt":"2024-11-24T00:28:03","guid":{"rendered":"https:\/\/fwq.ai\/blog\/26160\/"},"modified":"2024-11-24T08:28:03","modified_gmt":"2024-11-24T00:28:03","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8-javascript-%e4%b8%ad%e5%b0%86-b-%e6%95%b0%e7%bb%84%e7%9a%84%e5%85%83%e7%b4%a0%e5%90%88%e5%b9%b6%e5%88%b0%e7%9b%b8%e5%ba%94-a-%e6%95%b0%e7%bb%84%e4%b8%ad%ef%bc%9f-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/26160\/","title":{"rendered":"\u5982\u4f55\u5728 JavaScript \u4e2d\u5c06 `b` \u6570\u7ec4\u7684\u5143\u7d20\u5408\u5e76\u5230\u76f8\u5e94 `a` \u6570\u7ec4\u4e2d\uff1f"},"content":{"rendered":"

\"\u5982\u4f55\u5728<\/p>\n

\u5728 js \u4e2d\uff0c\u5982\u4f55\u5c06 b \u6570\u7ec4\u7684\u5143\u7d20\u5408\u5e76\u5230\u76f8\u5e94 a \u6570\u7ec4\u4e2d\uff1f<\/strong><\/p>\n

\u8981\u5c06 b \u6570\u7ec4\u7684\u5143\u7d20\u5408\u5e76\u5230\u76f8\u5e94 a \u6570\u7ec4\u4e2d\uff0c\u6bcf\u4e00\u9879\u7684 key \u4e0e b \u6570\u7ec4\u76f8\u5e94\u7684\u503c\u76f8\u540c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n

    \n
  1. \u4f7f\u7528 forEach() \u65b9\u6cd5\u904d\u5386 a \u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u3002<\/li>\n
  2. \u5728 forEach() \u56de\u8c03\u51fd\u6570\u4e2d\uff0c\u6839\u636e\u5143\u7d20\u7684 key \u5c5e\u6027\u83b7\u53d6 b \u6570\u7ec4\u4e2d\u7684\u76f8\u5e94\u503c\u3002<\/li>\n
  3. \u5c06 b \u6570\u7ec4\u4e2d\u83b7\u53d6\u5230\u7684\u503c\u8d4b\u503c\u7ed9 a \u6570\u7ec4\u4e2d\u7684\u76f8\u5e94\u5143\u7d20\u3002<\/li>\n<\/ol>\n

    \u4ee5\u4e0b\u4ee3\u7801\u5b9e\u73b0\u4e0a\u8ff0\u6b65\u9aa4\uff1a<\/p>\n

    let arr1= [{id:1,key:'key1',value:'ggg'},{id:2,key:'key2',value:'cccc'}]\nlet obj1 = {id:4,key1:'123',key2:'sdfdff'}\narr1.forEach(item=>{\n    item[item.key] = obj1[item.key];\n})<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u6700\u7ec8\uff0ca \u6570\u7ec4\u5c06\u88ab\u4fee\u6539\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n
    [\n    { id: 1, key: 'key1', value: 'ggg', key1: '123' },\n    { id: 2, key: 'key2', value: 'cccc', key2: 'sdfdff' }\n]<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u5728 JavaScript \u4e2d\u5c06 `b` \u6570\u7ec4\u7684\u5143\u7d20\u5408\u5e76\u5230\u76f8\u5e94 `a` \u6570\u7ec4\u4e2d\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u5728 js \u4e2d\uff0c\u5982\u4f55\u5c06 b \u6570\u7ec4\u7684\u5143\u7d20\u5408\u5e76\u5230\u76f8\u5e94 a \u6570\u7ec4\u4e2d\uff1f \u8981\u5c06 b \u6570\u7ec4\u7684\u5143\u7d20\u5408\u5e76\u5230\u76f8\u5e94 a \u6570\u7ec4\u4e2d\uff0c\u6bcf\u4e00\u9879\u7684 key \u4e0e b \u6570\u7ec4\u76f8\u5e94\u7684\u503c\u76f8\u540c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a \u4f7f\u7528 forEach() \u65b9\u6cd5\u904d\u5386 a \u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u3002 \u5728 forEach() \u56de\u8c03\u51fd\u6570\u4e2d\uff0c\u6839\u636e\u5143\u7d20\u7684 key \u5c5e\u6027\u83b7\u53d6 b \u6570\u7ec4\u4e2d\u7684\u76f8\u5e94\u503c\u3002 \u5c06 b \u6570\u7ec4\u4e2d\u83b7\u53d6\u5230\u7684\u503c\u8d4b\u503c\u7ed9 a \u6570\u7ec4\u4e2d\u7684\u76f8\u5e94\u5143\u7d20\u3002 \u4ee5\u4e0b\u4ee3\u7801\u5b9e\u73b0\u4e0a\u8ff0\u6b65\u9aa4\uff1a let arr1= [{id:1,key:’key1′,value:’ggg’},{id:2,key:’key2′,value:’cccc’}] let obj1 = {id:4,key1:’123′,key2:’sdfdff’} arr1.forEach(item=>{ item[item.key] = obj1[item.key]; }) \u767b\u5f55\u540e\u590d\u5236 \u6700\u7ec8\uff0ca \u6570\u7ec4\u5c06\u88ab\u4fee\u6539\uff0c\u5982\u4e0b\u6240\u793a\uff1a [ { id: 1, key: ‘key1’, […]<\/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-26160","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/26160","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=26160"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/26160\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=26160"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=26160"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=26160"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}