{"id":1243,"date":"2024-11-10T09:38:37","date_gmt":"2024-11-10T01:38:37","guid":{"rendered":"https:\/\/fwq.ai\/blog\/1243\/"},"modified":"2024-11-10T09:38:37","modified_gmt":"2024-11-10T01:38:37","slug":"%e5%a6%82%e4%bd%95%e5%b0%86%e4%b8%a4%e4%b8%aa%e6%95%b0%e7%bb%84%e5%9f%ba%e4%ba%8e%e7%89%b9%e5%ae%9a%e5%ad%97%e6%ae%b5%e5%90%88%e5%b9%b6%e6%88%90%e4%b8%80%e4%b8%aa%e6%96%b0%e6%95%b0%e7%bb%84%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/1243\/","title":{"rendered":"\u5982\u4f55\u5c06\u4e24\u4e2a\u6570\u7ec4\u57fa\u4e8e\u7279\u5b9a\u5b57\u6bb5\u5408\u5e76\u6210\u4e00\u4e2a\u65b0\u6570\u7ec4\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173033987787863.jpg\" class=\"aligncenter\" title=\"\u5982\u4f55\u5c06\u4e24\u4e2a\u6570\u7ec4\u57fa\u4e8e\u7279\u5b9a\u5b57\u6bb5\u5408\u5e76\u6210\u4e00\u4e2a\u65b0\u6570\u7ec4\uff1f\u63d2\u56fe\" alt=\"\u5982\u4f55\u5c06\u4e24\u4e2a\u6570\u7ec4\u57fa\u4e8e\u7279\u5b9a\u5b57\u6bb5\u5408\u5e76\u6210\u4e00\u4e2a\u65b0\u6570\u7ec4\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>javascript \u6bd4\u8f83\u4e24\u4e2a\u6570\u7ec4\u7684\u503c\u5e76\u5408\u5e76\u5176\u6570\u636e<\/strong><\/p>\n<p>\u95ee\u9898\u63cf\u8ff0\uff1a<\/p>\n<p>\u7ed9\u5b9a\u4e24\u4e2a\u6570\u7ec4 A \u548c B\uff0c\u5982\u679c A \u4e2d\u7684 id \u5b57\u6bb5\u4e0e B \u4e2d\u7684 cid \u5b57\u6bb5\u76f8\u7b49\uff0c\u5219\u60f3\u5c06\u8fd9\u4e24\u4e2a\u6570\u7ec4\u7684\u76f8\u5e94\u6570\u636e\u5408\u5e76\u5230\u4e00\u4e2a\u65b0\u7684\u6570\u7ec4\u4e2d\u3002<\/p>\n<p>\u95ee\u9898\u7684\u793a\u4f8b\u6570\u636e\u548c\u9884\u671f\u8f93\u51fa\u5982\u4e0b\uff1a<\/p>\n<pre>A: [{ id: 1 }, { id: 2 }]\nB: [{ cid: 1, des: \"1\" }, { cid: 1, des: \"11\" }, { cid: 2, des: \"2\" }]\n\n\u9884\u671f\u8f93\u51fa\uff1a\n[{ id: 1, list: [{ cid: 1, des: \"1\" }, { cid: 1, des: \"11\" }] }, { id: 2, list: [{ cid: 2, des: \"2\" }] }]<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n<p>\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 map() \u65b9\u6cd5\u9010\u4e00\u904d\u5386\u6570\u7ec4 A \u4e2d\u7684\u9879\uff0c\u5e76\u4f7f\u7528 filter() \u65b9\u6cd5\u5728\u6570\u7ec4 B \u4e2d\u67e5\u627e\u4e0e\u5f53\u524d\u9879\u7684 id \u76f8\u5339\u914d\u7684\u9879\u3002\u7136\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u5339\u914d\u7684\u9879\u5408\u5e76\u5230\u4e00\u4e2a\u65b0\u7684\u5bf9\u8c61\u4e2d\uff0c\u5e76\u5c06\u5176\u4f5c\u4e3a\u5408\u5e76\u540e\u7684\u6570\u7ec4\u4e2d\u7684\u4e00\u4e2a\u9879\u8fd4\u56de\u3002<\/p>\n<pre>let a = [{id:1},{id:2}];\nlet b = [{cid:1, des:\"1\"},{cid:1, des:\"11\"},{cid:2, des:\"2\"}];\n\nconst c = a.map(item =&gt; {\n    return {\n        ...item,\n        list: b.filter(it =&gt; it['cid'] === item['id'])\n    }\n});\n\nconsole.log(c);<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u8be5\u89e3\u51b3\u65b9\u6848\u5c06\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5176\u4e2d\u6bcf\u4e2a\u5bf9\u8c61\u5305\u542b A \u4e2d\u5bf9\u5e94\u7684 id \u4ee5\u53ca B \u4e2d\u6240\u6709\u5177\u6709\u5339\u914d cid \u7684\u5bf9\u8c61\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u5c06\u4e24\u4e2a\u6570\u7ec4\u57fa\u4e8e\u7279\u5b9a\u5b57\u6bb5\u5408\u5e76\u6210\u4e00\u4e2a\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>javascript \u6bd4\u8f83\u4e24\u4e2a\u6570\u7ec4\u7684\u503c\u5e76\u5408\u5e76\u5176\u6570\u636e \u95ee\u9898\u63cf\u8ff0\uff1a \u7ed9\u5b9a\u4e24\u4e2a\u6570\u7ec4 A \u548c B\uff0c\u5982\u679c A \u4e2d\u7684 id \u5b57\u6bb5\u4e0e B \u4e2d\u7684 cid \u5b57\u6bb5\u76f8\u7b49\uff0c\u5219\u60f3\u5c06\u8fd9\u4e24\u4e2a\u6570\u7ec4\u7684\u76f8\u5e94\u6570\u636e\u5408\u5e76\u5230\u4e00\u4e2a\u65b0\u7684\u6570\u7ec4\u4e2d\u3002 \u95ee\u9898\u7684\u793a\u4f8b\u6570\u636e\u548c\u9884\u671f\u8f93\u51fa\u5982\u4e0b\uff1a A: [{ id: 1 }, { id: 2 }] B: [{ cid: 1, des: &#8220;1&#8221; }, { cid: 1, des: &#8220;11&#8221; }, { cid: 2, des: &#8220;2&#8221; }] \u9884\u671f\u8f93\u51fa\uff1a [{ id: 1, list: [{ cid: 1, des: &#8220;1&#8221; }, [&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-1243","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/1243","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=1243"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/1243\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=1243"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=1243"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=1243"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}