{"id":169131,"date":"2024-05-08T16:39:20","date_gmt":"2024-05-08T08:39:20","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/169131.html"},"modified":"2024-05-08T16:39:24","modified_gmt":"2024-05-08T08:39:24","slug":"javascript-%e4%ba%8b%e4%bb%b6%e5%be%aa%e7%8e%af%e7%9a%84%e5%8e%9f%e7%90%86%e6%9c%89%e5%93%aa%e4%ba%9b","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/169131.html","title":{"rendered":"JavaScript \u4e8b\u4ef6\u5faa\u73af\u7684\u539f\u7406\u6709\u54ea\u4e9b"},"content":{"rendered":"<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/27035453\/8c9c2278-6f93-4fc6-9cd4-0403de57dcc1.webp\" alt=\"JavaScript \u4e8b\u4ef6\u5faa\u73af\u7684\u539f\u7406\u6709\u54ea\u4e9b\" \/><\/p>\n<p><p>JavaScript \u4e8b\u4ef6\u5faa\u73af\u7684\u539f\u7406\u4e3b\u8981\u5305\u62ec<strong>\u8c03\u7528\u6808\u3001\u4efb\u52a1\u961f\u5217\u3001\u5fae\u4efb\u52a1\u961f\u5217\u3001\u4e8b\u4ef6\u5faa\u73af<\/strong>\u3002\u5f53JavaScript\u4ee3\u7801\u6267\u884c\u65f6\uff0c\u540c\u6b65\u4efb\u52a1\u4f1a\u8fdb\u5165\u8c03\u7528\u6808\u8fdb\u884c\u5904\u7406\uff0c\u5f02\u6b65\u4efb\u52a1\u5219\u5728\u5bf9\u5e94\u7684API\u5904\u7406\u540e\uff0c\u5c06\u56de\u8c03\u51fd\u6570\u653e\u5165\u4efb\u52a1\u961f\u5217\u6216\u5fae\u4efb\u52a1\u961f\u5217\u3002\u4efb\u52a1\u961f\u5217\u901a\u5e38\u653e\u7f6e\u5b8f\u4efb\u52a1\uff0c\u5982setTimeout\u7684\u56de\u8c03\uff0c\u800c\u5fae\u4efb\u52a1\u961f\u5217\u5219\u653e\u7f6e\u5982Promise.then\u7684\u56de\u8c03\u3002<strong>\u4e8b\u4ef6\u5faa\u73af<\/strong>\u7684\u4f5c\u7528\u662f\u4e0d\u65ad\u68c0\u67e5\u8c03\u7528\u6808\u662f\u5426\u4e3a\u7a7a\uff0c\u5982\u679c\u4e3a\u7a7a\uff0c\u5219\u6309\u987a\u5e8f\u4ece\u4efb\u52a1\u961f\u5217\u6216\u5fae\u4efb\u52a1\u961f\u5217\u4e2d\u53d6\u51fa\u4efb\u52a1\u6267\u884c\u3002\u5fae\u4efb\u52a1\u961f\u5217\u7684\u6267\u884c\u4f18\u5148\u7ea7\u9ad8\u4e8e\u4efb\u52a1\u961f\u5217\uff0c\u6bcf\u6b21\u6267\u884c\u5b8c\u8c03\u7528\u6808\u4e2d\u7684\u4efb\u52a1\u540e\uff0c\u4f1a\u6e05\u7a7a\u5fae\u4efb\u52a1\u961f\u5217\uff0c\u7136\u540e\u624d\u4f1a\u4ece\u5b8f\u4efb\u52a1\u961f\u5217\u4e2d\u53d6\u51fa\u4e00\u4e2a\u4efb\u52a1\u6267\u884c\uff0c\u8fd9\u4e2a\u5faa\u73af\u8fc7\u7a0b\u6301\u7eed\u4e0d\u65ad\uff0c\u786e\u4fdd\u4e86JavaScript\u7684\u975e\u963b\u585e\u7279\u6027\u4ee5\u53ca\u5f02\u6b65\u6267\u884c\u903b\u8f91\u3002<\/p>\n<\/p>\n<p><p>\u5176\u4e2d\uff0c<strong>\u5fae\u4efb\u52a1\u961f\u5217<\/strong>\u7684\u5904\u7406\u662f\u4e8b\u4ef6\u5faa\u73af\u7684\u5173\u952e\u4e4b\u4e00\u3002\u5728\u6bcf\u6b21\u5b8f\u4efb\u52a1\u6267\u884c\u5b8c\u6bd5\u540e\uff0c\u5f15\u64ce\u4f1a\u5904\u7406\u6240\u6709\u7684\u5fae\u4efb\u52a1\uff0c\u8fd9\u610f\u5473\u7740\u5728\u5904\u7406\u5fae\u4efb\u52a1\u671f\u95f4\uff0c\u5982\u679c\u5fae\u4efb\u52a1\u4e2d\u7ee7\u7eed\u4ea7\u751f\u65b0\u7684\u5fae\u4efb\u52a1\uff0c\u8fd9\u4e9b\u65b0\u7684\u5fae\u4efb\u52a1\u4e5f\u4f1a\u5728\u5f53\u524d\u4e8b\u4ef6\u5faa\u73af\u4e2d\u88ab\u6267\u884c\uff0c\u76f4\u5230\u5fae\u4efb\u52a1\u961f\u5217\u6e05\u7a7a\u3002\u8fd9\u6837\u7684\u673a\u5236\u4fdd\u8bc1\u4e86\u76f8\u5173\u7684\u5f02\u6b65\u64cd\u4f5c\u80fd\u591f\u66f4\u5feb\u7684\u6267\u884c\u548c\u89e3\u51b3\uff0c\u6bd4\u5982Promise\u7684\u56de\u8c03\u5c31\u53ef\u4ee5\u5f88\u5feb\u5f97\u5230\u6267\u884c\uff0c\u800c\u4e0d\u7528\u7b49\u5f85\u5176\u4ed6\u5b8f\u4efb\u52a1\u7684\u5b8c\u6210\uff0c\u8fd9\u5bf9\u4e8e\u6027\u80fd\u4ee5\u53ca\u7528\u6237\u4f53\u9a8c\u662f\u6709\u76ca\u7684\u3002<\/p>\n<\/p>\n<p><p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u6df1\u5165\u63a2\u8ba8JavaScript\u4e8b\u4ef6\u5faa\u73af\u7684\u539f\u7406\uff0c\u8be6\u7ec6\u9610\u8ff0\u5176\u5de5\u4f5c\u673a\u5236\u548c\u4e00\u4e9b\u5173\u952e\u6982\u5ff5\u3002<\/p>\n<\/p>\n<p><p>\u4e00\u3001\u8c03\u7528\u6808\uff08CALL STACK\uff09<\/p>\n<p>\u8c03\u7528\u6808\u662f\u4e00\u4e2a\u9075\u5faa\u540e\u8fdb\u5148\u51fa\u539f\u5219\u7684\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5b58\u50a8\u4ee3\u7801\u8fd0\u884c\u65f6\u7684\u4e0a\u4e0b\u6587\u4fe1\u606f\u3002\u6bcf\u5f53\u4e00\u4e2a\u51fd\u6570\u88ab\u6267\u884c\uff0c\u5b83\u7684\u6267\u884c\u4e0a\u4e0b\u6587\u5c31\u4f1a\u88ab\u63a8\u5165\u6808\u4e2d\uff0c\u51fd\u6570\u6267\u884c\u5b8c\u6bd5\u540e\uff0c\u5176\u4e0a\u4e0b\u6587\u5219\u51fa\u6808\u3002<\/p>\n<\/p>\n<ul>\n<li><strong>\u540c\u6b65\u4efb\u52a1\u6267\u884c<\/strong>: JavaScript\u5f15\u64ce\u6267\u884c\u540c\u6b65\u4ee3\u7801\u65f6\uff0c\u4f1a\u6309\u7167\u4ee3\u7801\u51fa\u73b0\u7684\u987a\u5e8f\u5c06\u51fd\u6570\u8c03\u7528\u63a8\u5165\u8c03\u7528\u6808\uff0c\u5e76\u7acb\u5373\u6267\u884c\u3002<\/li>\n<li><strong>\u9519\u8bef\u5904\u7406<\/strong>: \u5982\u679c\u5728\u6267\u884c\u8fc7\u7a0b\u4e2d\u53d1\u751f\u9519\u8bef\uff0c\u8c03\u7528\u6808\u5c06\u5e2e\u52a9\u5b9a\u4f4d\u95ee\u9898\u6765\u6e90\uff0c\u56e0\u4e3a\u5b83\u8bb0\u5f55\u4e86\u51fd\u6570\u7684\u8c03\u7528\u8def\u5f84\u3002<\/li>\n<\/ul>\n<p><p>\u4e8c\u3001\u4efb\u52a1\u961f\u5217\uff08TASK QUEUE\uff09<\/p>\n<p>\u4efb\u52a1\u961f\u5217\u662f\u4e00\u79cd\u5148\u8fdb\u5148\u51fa\u7684\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5b58\u50a8\u5f85\u6267\u884c\u7684\u5f02\u6b65\u4efb\u52a1\u7684\u56de\u8c03\u51fd\u6570\u3002<\/p>\n<\/p>\n<ul>\n<li><strong>\u5b8f\u4efb\u52a1\u5904\u7406<\/strong>: \u88ab\u5f52\u7c7b\u4e3a\u5b8f\u4efb\u52a1\u7684\u5f02\u6b65\u64cd\u4f5c\uff0c\u5982 <code>setTimeout<\/code>\u3001<code>setInterval<\/code>\u3001IO\u3001UI\u4e8b\u4ef6\u7b49\uff0c\u5b83\u4eec\u7684\u56de\u8c03\u4f1a\u88ab\u6dfb\u52a0\u5230\u4efb\u52a1\u961f\u5217\u4e2d\u3002<\/li>\n<li><strong>\u4e8b\u4ef6\u5faa\u73af\u4ea4\u4e92<\/strong>: \u4e8b\u4ef6\u5faa\u73af\u4f1a\u5728\u8c03\u7528\u6808\u4e3a\u7a7a\u65f6\uff0c\u4ece\u4efb\u52a1\u961f\u5217\u4e2d\u53d6\u51fa\u6700\u524d\u9762\u7684\u4efb\u52a1\u6267\u884c\u3002<\/li>\n<\/ul>\n<p><p>\u4e09\u3001\u5fae\u4efb\u52a1\u961f\u5217\uff08MICROTASK QUEUE\uff09<\/p>\n<p>\u5fae\u4efb\u52a1\u961f\u5217\u662f\u53e6\u4e00\u4e2a\u4efb\u52a1\u961f\u5217\uff0c\u7528\u4e8e\u5fae\u4efb\u52a1\uff08\u5982 <code>Promise<\/code>\u3001<code>MutationObserver<\/code>\uff09\u7684\u56de\u8c03\u3002<\/p>\n<\/p>\n<ul>\n<li><strong>\u4f18\u5148\u7ea7\u6267\u884c<\/strong>: \u5fae\u4efb\u52a1\u7684\u6267\u884c\u4f18\u5148\u7ea7\u9ad8\u4e8e\u5b8f\u4efb\u52a1\uff0c\u5728\u6bcf\u6b21\u4e8b\u4ef6\u5faa\u73af\u7684\u5b8f\u4efb\u52a1\u6267\u884c\u540e\uff0c\u6240\u6709\u7684\u5fae\u4efb\u52a1\u90fd\u5c06\u5728\u4e0b\u4e00\u4e2a\u5b8f\u4efb\u52a1\u4e4b\u524d\u6267\u884c\u5b8c\u6bd5\u3002<\/li>\n<li><strong>\u8fde\u7eed\u6267\u884c<\/strong>: \u53ea\u6709\u5f53\u5fae\u4efb\u52a1\u961f\u5217\u4e3a\u7a7a\u65f6\uff0c\u4e8b\u4ef6\u5faa\u73af\u624d\u4f1a\u7ee7\u7eed\u6267\u884c\u5b8f\u4efb\u52a1\u961f\u5217\u4e2d\u7684\u4efb\u52a1\u3002<\/li>\n<\/ul>\n<p><p>\u56db\u3001\u4e8b\u4ef6\u5faa\u73af\uff08EVENT LOOP\uff09<\/p>\n<p>\u4e8b\u4ef6\u5faa\u73af\u662f\u4e00\u4e2a\u6301\u7eed\u8fd0\u884c\u7684\u8fc7\u7a0b\uff0c\u5b83\u8d1f\u8d23\u76d1\u63a7\u8c03\u7528\u6808\u548c\u4efb\u52a1\u961f\u5217\uff0c\u8c03\u5ea6\u4efb\u52a1\u7684\u6267\u884c\u3002<\/p>\n<\/p>\n<ul>\n<li><strong>\u5faa\u73af\u6d41\u7a0b<\/strong>: \u4e8b\u4ef6\u5faa\u73af\u6309\u7167\u7279\u5b9a\u987a\u5e8f\u68c0\u67e5\u8c03\u7528\u6808\u548c\u4efb\u52a1\u961f\u5217\u4e2d\u7684\u4efb\u52a1\uff0c\u8c03\u7528\u6808\u7a7a\u65f6\uff0c\u5faa\u73af\u4f1a\u5c06\u4efb\u52a1\u961f\u5217\u4e2d\u7684\u4efb\u52a1\u4e00\u4e00\u6267\u884c\u3002<\/li>\n<li><strong>\u6027\u80fd\u4e0e\u7528\u6237\u4f53\u9a8c<\/strong>: \u4e8b\u4ef6\u5faa\u73af\u673a\u5236\u662fJavaScript\u5f02\u6b65\u7f16\u7a0b\u7684\u6838\u5fc3\uff0c\u901a\u8fc7\u5b83\u53ef\u4ee5\u5b9e\u73b0\u754c\u9762\u65e0\u963b\u585e\u548c\u540e\u53f0\u8fd0\u7b97\uff0c\u6539\u5584\u7528\u6237\u4f53\u9a8c\u3002<\/li>\n<\/ul>\n<p><p>\u4e94\u3001\u5b9e\u9645\u6848\u4f8b\u5206\u6790<\/p>\n<p>\u8ba9\u6211\u4eec\u901a\u8fc7\u4e00\u4e9b\u5177\u4f53\u5b9e\u4f8b\uff0c\u6765\u5206\u6790\u4e8b\u4ef6\u5faa\u73af\u5728\u5b9e\u9645\u4ee3\u7801\u4e2d\u7684\u5de5\u4f5c\u65b9\u5f0f\u3002<\/p>\n<\/p>\n<ul>\n<li><strong>\u793a\u4f8b\u89e3\u6790<\/strong>: \u7ed3\u5408<code>setTimeout<\/code>\u3001<code>Promise<\/code>\u7b49\u5f02\u6b65API\u7684\u4f7f\u7528\uff0c\u63a2\u8ba8\u4e8b\u4ef6\u5faa\u73af\u5982\u4f55\u7ba1\u7406\u8fd9\u4e9b\u5f02\u6b65\u64cd\u4f5c\u3002<\/li>\n<li><strong>\u5e38\u89c1\u8bef\u533a\u8bf4\u660e<\/strong>: \u901a\u8fc7\u5bf9\u6bd4\u4e0d\u540c\u5f02\u6b65\u64cd\u4f5c\u7684\u6267\u884c\u987a\u5e8f\uff0c\u8bf4\u660e\u5982\u4f55\u6b63\u786e\u7406\u89e3\u548c\u4f7f\u7528\u4e8b\u4ef6\u5faa\u73af\u3002<\/li>\n<\/ul>\n<p><p>\u516d\u3001\u4e8b\u4ef6\u5faa\u73af\u5728\u73b0\u4ee3JavaScript\u5f00\u53d1\u4e2d\u7684\u5e94\u7528<\/p>\n<p>\u4e8b\u4ef6\u5faa\u73af\u4e0d\u4ec5\u662f\u7406\u8bba\u6982\u5ff5\uff0c\u5b83\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\u626e\u6f14\u7740\u91cd\u8981\u89d2\u8272\u3002<\/p>\n<\/p>\n<ul>\n<li><strong>\u5f02\u6b65\u7f16\u7a0b\u6a21\u5f0f<\/strong>: \u63a2\u8ba8<code>async\/aw<a href=\"https:\/\/docs.pingcode.com\/blog\/59162.html\" target=\"_blank\">AI<\/a>t<\/code>\u8bed\u6cd5\u5982\u4f55\u4e0e\u4e8b\u4ef6\u5faa\u73af\u534f\u540c\u5de5\u4f5c\uff0c\u63d0\u4f9b\u66f4\u4f18\u96c5\u7684\u5f02\u6b65\u7f16\u7a0b\u65b9\u5f0f\u3002<\/li>\n<li><strong>\u6027\u80fd\u4f18\u5316\u7b56\u7565<\/strong>: \u5206\u6790\u4e8b\u4ef6\u5faa\u73af\u7684\u5de5\u4f5c\u673a\u5236\u5982\u4f55\u5e2e\u52a9\u5f00\u53d1\u8005\u5728\u7f16\u5199\u9ad8\u6027\u80fd\u5e94\u7528\u65f6\u505a\u51fa\u66f4\u660e\u667a\u7684\u51b3\u7b56\u3002<\/li>\n<\/ul>\n<p><p>\u4e03\u3001\u4e8b\u4ef6\u5faa\u73af\u7684\u9ad8\u7ea7\u6982\u5ff5\u4e0e\u8bef\u89e3<\/p>\n<p>\u5728\u6df1\u5165\u7406\u89e3\u4e8b\u4ef6\u5faa\u73af\u7684\u57fa\u7840\u4e0a\uff0c\u6211\u4eec\u5c06\u9610\u660e\u4e00\u4e9b\u9ad8\u7ea7\u6982\u5ff5\u548c\u666e\u904d\u5b58\u5728\u7684\u8bef\u89e3\u3002<\/p>\n<\/p>\n<ul>\n<li><strong>\u5b8f\u4efb\u52a1\u4e0e\u5fae\u4efb\u52a1\u7684\u533a\u522b<\/strong>: \u8be6\u7ec6\u89e3\u91ca\u4e3a\u4f55\u5fae\u4efb\u52a1\u548c\u5b8f\u4efb\u52a1\u7684\u8bbe\u8ba1\u521d\u8877\u4e0d\u540c\uff0c\u53ca\u5176\u5bf9\u4e8b\u4ef6\u5faa\u73af\u7684\u5f71\u54cd\u3002<\/li>\n<li><strong>\u4e8b\u4ef6\u5faa\u73af\u7684\u5e38\u89c1\u8bef\u89e3<\/strong>: \u8bc6\u522b\u548c\u7ea0\u6b63\u5173\u4e8e\u4e8b\u4ef6\u5faa\u73af\u7684\u4e00\u4e9b\u5e38\u89c1\u8bef\u89e3\uff0c\u4f8b\u5982\u201c\u4e8b\u4ef6\u5faa\u73af\u4e0eECMAScript\u89c4\u8303\u7684\u5173\u7cfb\u201d\u3002<\/li>\n<\/ul>\n<p><p>\u516b\u3001\u4e8b\u4ef6\u5faa\u73af\u5728\u4e0d\u540c\u73af\u5883\u4e0b\u7684\u5dee\u5f02<\/p>\n<p>\u4e8b\u4ef6\u5faa\u73af\u673a\u5236\u5728\u6d4f\u89c8\u5668\u548cNode.js\u7b49\u4e0d\u540c\u73af\u5883\u4e0b\u6709\u6240\u4e0d\u540c\u3002<\/p>\n<\/p>\n<ul>\n<li><strong>\u6d4f\u89c8\u5668\u4e2d\u7684\u4e8b\u4ef6\u5faa\u73af<\/strong>: \u63cf\u8ff0\u6d4f\u89c8\u5668\u73af\u5883\u4e0b\uff0c\u4e8b\u4ef6\u5faa\u73af\u5982\u4f55\u4e0e\u6e32\u67d3\u7ebf\u7a0b\u3001Web API\u7b49\u534f\u540c\u5de5\u4f5c\u3002<\/li>\n<li><strong>Node.js\u4e2d\u7684\u4e8b\u4ef6\u5faa\u73af<\/strong>: \u89e3\u91caNode.js\u4e8b\u4ef6\u5faa\u73af\u7684\u7279\u6b8a\u4e4b\u5904\uff0c\u4f8b\u5982\u201cprocess.nextTick\u201d\u7684\u4f7f\u7528\u548c\u4e8b\u4ef6\u5faa\u73af\u7684\u9636\u6bb5\u3002<\/li>\n<\/ul>\n<p><p>\u901a\u8fc7\u6df1\u5165\u8ba8\u8bba\u4e0a\u8ff0\u5404\u4e2a\u65b9\u9762\uff0c\u6211\u4eec\u5c06\u5168\u9762\u7406\u89e3JavaScript\u4e8b\u4ef6\u5faa\u73af\u7684\u539f\u7406\uff0c\u5e76\u8ba4\u8bc6\u5230\u5176\u5bf9\u4e8e\u65e5\u5e38\u7f16\u7a0b\u5b9e\u8df5\u7684\u91cd\u8981\u610f\u4e49\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p><strong>1. JavaScript \u4e8b\u4ef6\u5faa\u73af\u662f\u4ec0\u4e48\uff1f<\/strong><\/p>\n<p>JavaScript\u4e8b\u4ef6\u5faa\u73af\u662f\u4e00\u79cd\u673a\u5236\uff0c\u7528\u4e8e\u5904\u7406\u5e76\u53d1\u64cd\u4f5c\u548c\u5f02\u6b65\u4ee3\u7801\u3002\u5b83\u8d1f\u8d23\u5c06\u4ee3\u7801\u6309\u7167\u6307\u5b9a\u7684\u987a\u5e8f\u6267\u884c\uff0c\u5e76\u5904\u7406\u4e8b\u4ef6\u3001\u56de\u8c03\u51fd\u6570\u4ee5\u53ca\u5176\u4ed6\u5f02\u6b65\u64cd\u4f5c\u3002<\/p>\n<p><strong>2. JavaScript\u4e8b\u4ef6\u5faa\u73af\u7684\u5de5\u4f5c\u539f\u7406\u662f\u5982\u4f55\u7684\uff1f<\/strong><\/p>\n<p>JavaScript\u4e8b\u4ef6\u5faa\u73af\u7531\u4e00\u4e2a\u65e0\u9650\u5faa\u73af\u7ec4\u6210\uff0c\u8be5\u5faa\u73af\u4e0d\u65ad\u83b7\u53d6\u4efb\u52a1\u961f\u5217\u4e2d\u7684\u4efb\u52a1\u5e76\u6267\u884c\u5b83\u4eec\u3002\u9996\u5148\uff0c\u6267\u884c\u5b8c\u6240\u6709\u7684\u540c\u6b65\u4ee3\u7801\uff0c\u7136\u540e\u68c0\u67e5\u5fae\u4efb\u52a1\u961f\u5217\uff0c\u5904\u7406\u6240\u6709\u7684\u5fae\u4efb\u52a1\u3002\u63a5\u4e0b\u6765\uff0c\u68c0\u67e5\u5b8f\u4efb\u52a1\u961f\u5217\uff0c\u6267\u884c\u4e00\u4e2a\u4efb\u52a1\uff0c\u5e76\u91cd\u590d\u8fd9\u4e2a\u8fc7\u7a0b\u76f4\u5230\u6ca1\u6709\u4efb\u52a1\u53ef\u6267\u884c\u3002<\/p>\n<p><strong>3. JavaScript\u4e2d\u7684\u5b8f\u4efb\u52a1\u548c\u5fae\u4efb\u52a1\u662f\u4ec0\u4e48\uff1f<\/strong><\/p>\n<p>\u5728JavaScript\u4e8b\u4ef6\u5faa\u73af\u4e2d\uff0c\u4efb\u52a1\u5206\u4e3a\u5b8f\u4efb\u52a1\u548c\u5fae\u4efb\u52a1\u3002\u5b8f\u4efb\u52a1\u5305\u62ecsetTimeout\u3001setInterval\u3001I\/O\u64cd\u4f5c\u7b49\u5f02\u6b65\u64cd\u4f5c\uff0c\u800c\u5fae\u4efb\u52a1\u5305\u62ecPromise\u3001MutationObserver\u7b49\u3002<\/p>\n<p>\u5b8f\u4efb\u52a1\u8fdb\u5165\u5b8f\u4efb\u52a1\u961f\u5217\uff0c\u7b49\u5f85\u6267\u884c\uff0c\u800c\u5fae\u4efb\u52a1\u8fdb\u5165\u5fae\u4efb\u52a1\u961f\u5217\uff0c\u7b49\u5f85\u7acb\u5373\u6267\u884c\u3002\u5728\u6bcf\u6b21\u4e8b\u4ef6\u5faa\u73af\u4e2d\uff0c\u4f18\u5148\u5904\u7406\u5fae\u4efb\u52a1\uff0c\u7136\u540e\u518d\u5904\u7406\u5b8f\u4efb\u52a1\u3002\u8fd9\u79cd\u673a\u5236\u4fdd\u8bc1\u4e86\u5fae\u4efb\u52a1\u53ef\u4ee5\u5feb\u901f\u6267\u884c\uff0c\u5e76\u4e14\u53ef\u4ee5\u53ca\u65f6\u54cd\u5e94\u7528\u6237\u64cd\u4f5c\uff0c\u63d0\u5347\u4e86\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"JavaScript \u4e8b\u4ef6\u5faa\u73af\u7684\u539f\u7406\u4e3b\u8981\u5305\u62ec\u8c03\u7528\u6808\u3001\u4efb\u52a1\u961f\u5217\u3001\u5fae\u4efb\u52a1\u961f\u5217\u3001\u4e8b\u4ef6\u5faa\u73af\u3002\u5f53JavaScript\u4ee3\u7801 [&hellip;]","protected":false},"author":3,"featured_media":169137,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/169131"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=169131"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/169131\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/169137"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=169131"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=169131"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=169131"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}