{"id":1272,"date":"2024-11-10T12:16:27","date_gmt":"2024-11-10T04:16:27","guid":{"rendered":"https:\/\/fwq.ai\/blog\/1272\/"},"modified":"2024-11-10T12:16:27","modified_gmt":"2024-11-10T04:16:27","slug":"%e5%a6%82%e4%bd%95%e9%80%9a%e8%bf%87%e6%95%b0%e7%bb%84%e5%85%83%e7%b4%a0%e7%9b%b8%e5%90%8c%e5%80%bc%e5%8c%b9%e9%85%8d%e7%bb%84%e5%90%88%e6%96%b0%e6%95%b0%e7%bb%84%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/1272\/","title":{"rendered":"\u5982\u4f55\u901a\u8fc7\u6570\u7ec4\u5143\u7d20\u76f8\u540c\u503c\u5339\u914d\u7ec4\u5408\u65b0\u6570\u7ec4\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173034912058429.jpg\" class=\"aligncenter\" title=\"\u5982\u4f55\u901a\u8fc7\u6570\u7ec4\u5143\u7d20\u76f8\u540c\u503c\u5339\u914d\u7ec4\u5408\u65b0\u6570\u7ec4\uff1f\u63d2\u56fe\" alt=\"\u5982\u4f55\u901a\u8fc7\u6570\u7ec4\u5143\u7d20\u76f8\u540c\u503c\u5339\u914d\u7ec4\u5408\u65b0\u6570\u7ec4\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u901a\u8fc7\u6570\u7ec4\u5143\u7d20\u76f8\u540c\u503c\u5339\u914d\u7ec4\u5408\u65b0\u6570\u7ec4<\/strong><\/p>\n<p>\u5f53\u524d\u6709\u4e24\u4e2a\u6570\u7ec4 A \u548c B\uff0c\u5176\u4e2d A \u6570\u7ec4\u5305\u542b id \u5b57\u6bb5\uff0c\u800c B \u6570\u7ec4\u5305\u542b cid \u5b57\u6bb5\u548c des \u5b57\u6bb5\u3002\u9700\u8981\u4ece\u8fd9\u4e24\u4e2a\u6570\u7ec4\u4e2d\u63d0\u53d6\u7279\u5b9a\u6570\u636e\u5e76\u7ec4\u5408\u6210\u4e00\u4e2a\u65b0\u6570\u7ec4\u3002<\/p>\n<p><strong>\u65b0\u6570\u7ec4\u5305\u542b\u7684\u5143\u7d20\uff1a<\/strong><\/p>\n<ul>\n<li>\u5f53 A \u6570\u7ec4\u7684 id \u4e0e B \u6570\u7ec4\u7684 cid \u76f8\u7b49\u65f6\uff0cA \u6570\u7ec4\u7684 id<\/li>\n<li>B \u6570\u7ec4\u4e2d cid \u4e0e\u5339\u914d id \u5bf9\u5e94\u7684\u6240\u6709\u5176\u4ed6\u5b57\u6bb5<\/li>\n<\/ul>\n<p><strong>\u5b9e\u73b0\u65b9\u6cd5\uff1a<\/strong><\/p>\n<p>\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 JavaScript \u4e2d\u7684 map() \u65b9\u6cd5\u6765\u904d\u5386 A \u6570\u7ec4\uff0c\u7136\u540e\u4f7f\u7528 filter() \u65b9\u6cd5\u4ece B \u6570\u7ec4\u4e2d\u8fc7\u6ee4\u51fa\u4e0e\u5f53\u524d A \u6570\u7ec4\u5143\u7d20 id \u5339\u914d\u7684\u5143\u7d20\u3002\u901a\u8fc7\u6b64\u64cd\u4f5c\uff0c\u6211\u4eec\u53ef\u4ee5\u7ec4\u5408\u51fa\u6240\u9700\u7684\u5143\u7d20\u5e76\u5c06\u5176\u6dfb\u52a0\u5230\u65b0\u6570\u7ec4\u4e2d\u3002<\/p>\n<pre>let a = [{ id: 1 }, { id: 2 }];\nlet b = [{ cid: 1, des: \"1\" }, { cid: 1, des: \"11\" }, { cid: 2, des: \"2\" }];\nlet c = a.map(item =&gt; {\n  return {\n    ...item,\n    list: b.filter(it =&gt; it[\"cid\"] === item[\"id\"])\n  }\n});<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u7ed3\u679c\u6570\u7ec4 c \u5c06\u5305\u542b\u5339\u914d A \u6570\u7ec4 id \u7684 B \u6570\u7ec4\u5143\u7d20\uff1a<\/p>\n<pre>[\n  { id: 1, list: [{ cid: 1, des: \"1\" }, { cid: 1, des: \"11\" }] },\n  { id: 2, list: [{ cid: 2, des: \"2\" }] }\n]<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u901a\u8fc7\u6570\u7ec4\u5143\u7d20\u76f8\u540c\u503c\u5339\u914d\u7ec4\u5408\u65b0\u6570\u7ec4\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":"<p>\u901a\u8fc7\u6570\u7ec4\u5143\u7d20\u76f8\u540c\u503c\u5339\u914d\u7ec4\u5408\u65b0\u6570\u7ec4 \u5f53\u524d\u6709\u4e24\u4e2a\u6570\u7ec4 A \u548c B\uff0c\u5176\u4e2d A \u6570\u7ec4\u5305\u542b id \u5b57\u6bb5\uff0c\u800c B \u6570\u7ec4\u5305\u542b cid \u5b57\u6bb5\u548c des \u5b57\u6bb5\u3002\u9700\u8981\u4ece\u8fd9\u4e24\u4e2a\u6570\u7ec4\u4e2d\u63d0\u53d6\u7279\u5b9a\u6570\u636e\u5e76\u7ec4\u5408\u6210\u4e00\u4e2a\u65b0\u6570\u7ec4\u3002 \u65b0\u6570\u7ec4\u5305\u542b\u7684\u5143\u7d20\uff1a \u5f53 A \u6570\u7ec4\u7684 id \u4e0e B \u6570\u7ec4\u7684 cid \u76f8\u7b49\u65f6\uff0cA \u6570\u7ec4\u7684 id B \u6570\u7ec4\u4e2d cid \u4e0e\u5339\u914d id \u5bf9\u5e94\u7684\u6240\u6709\u5176\u4ed6\u5b57\u6bb5 \u5b9e\u73b0\u65b9\u6cd5\uff1a \u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 JavaScript \u4e2d\u7684 map() \u65b9\u6cd5\u6765\u904d\u5386 A \u6570\u7ec4\uff0c\u7136\u540e\u4f7f\u7528 filter() \u65b9\u6cd5\u4ece B \u6570\u7ec4\u4e2d\u8fc7\u6ee4\u51fa\u4e0e\u5f53\u524d A \u6570\u7ec4\u5143\u7d20 id \u5339\u914d\u7684\u5143\u7d20\u3002\u901a\u8fc7\u6b64\u64cd\u4f5c\uff0c\u6211\u4eec\u53ef\u4ee5\u7ec4\u5408\u51fa\u6240\u9700\u7684\u5143\u7d20\u5e76\u5c06\u5176\u6dfb\u52a0\u5230\u65b0\u6570\u7ec4\u4e2d\u3002 let a = [{ id: 1 [&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-1272","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/1272","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=1272"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/1272\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=1272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=1272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=1272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}