{"id":12826,"date":"2023-11-28T23:07:13","date_gmt":"2023-11-28T15:07:13","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=12826"},"modified":"2023-11-29T21:32:13","modified_gmt":"2023-11-29T13:32:13","slug":"javascript-zhongjs-shi-ru-he-shi-xian-yi-bu-de","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/javascript-zhongjs-shi-ru-he-shi-xian-yi-bu-de\/","title":{"rendered":"JavaScript \u4e2d JS \u662f\u5982\u4f55\u5b9e\u73b0\u5f02\u6b65\u7684\uff1f"},"content":{"rendered":"

\u5728 JavaScript \u4e2d\uff0c\u5b9e\u73b0\u5f02\u6b65\u7684\u65b9\u5f0f\u4e3b\u8981\u4f9d\u8d56\u4e8e\u4e8b\u4ef6\u5faa\u73af\u548c\u56de\u8c03\u51fd\u6570\u673a\u5236\u3002<\/p>\n

    \n
  1. \n

    \u4e8b\u4ef6\u5faa\u73af\uff08Event Loop\uff09\uff1a<\/strong> JavaScript \u662f\u5355\u7ebf\u7a0b\u6267\u884c\u7684\uff0c\u4f46\u662f\u901a\u8fc7\u4e8b\u4ef6\u5faa\u73af\u673a\u5236\u53ef\u4ee5\u5904\u7406\u5f02\u6b65\u64cd\u4f5c\u3002\u5728\u6267\u884c\u540c\u6b65\u4efb\u52a1\u540e\uff0cJavaScript \u5f15\u64ce\u4f1a\u68c0\u67e5\u4efb\u52a1\u961f\u5217\u4e2d\u662f\u5426\u6709\u5f02\u6b65\u4efb\u52a1\uff0c\u5982\u679c\u6709\uff0c\u4f1a\u5c06\u5176\u653e\u5165\u6267\u884c\u6808\u4e2d\u6267\u884c\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u4e0d\u65ad\u5faa\u73af\uff0c\u88ab\u79f0\u4e3a\u4e8b\u4ef6\u5faa\u73af\uff08Event Loop\uff09\u3002<\/p>\n<\/li>\n

  2. \n

    \u56de\u8c03\u51fd\u6570\uff08Callback\uff09\uff1a<\/strong> \u5f02\u6b65\u64cd\u4f5c\u901a\u5e38\u901a\u8fc7\u56de\u8c03\u51fd\u6570\u6765\u5904\u7406\u3002\u5f53\u6267\u884c\u5f02\u6b65\u4efb\u52a1\u65f6\uff0c\u4e0d\u4f1a\u963b\u585e\u540e\u7eed\u4ee3\u7801\u7684\u6267\u884c\uff0c\u800c\u662f\u5c06\u56de\u8c03\u51fd\u6570\u653e\u5165\u4e8b\u4ef6\u961f\u5217\uff0c\u5f53\u6ee1\u8db3\u6761\u4ef6\uff08\u4f8b\u5982\u7f51\u7edc\u8bf7\u6c42\u5b8c\u6210\u3001\u5b9a\u65f6\u5668\u7ed3\u675f\u7b49\uff09\u65f6\uff0c\u5c06\u56de\u8c03\u51fd\u6570\u63a8\u5165\u6267\u884c\u6808\u4e2d\u6267\u884c\u3002<\/p>\n<\/li>\n<\/ol>\n

    \u4f8b\u5982\uff0c\u5e38\u89c1\u7684\u5f02\u6b65\u64cd\u4f5c\u5982 setTimeout\u3001Promise\u3001fetch \u7b49\uff0c\u5b83\u4eec\u5229\u7528\u4e86 JavaScript \u5f15\u64ce\u7684\u4e8b\u4ef6\u5faa\u73af\u673a\u5236\uff0c\u5728\u5f02\u6b65\u64cd\u4f5c\u5b8c\u6210\u540e\u6267\u884c\u76f8\u5e94\u7684\u56de\u8c03\u51fd\u6570\uff0c\u4ece\u800c\u5b9e\u73b0\u5f02\u6b65\u7f16\u7a0b\u3002<\/p>\n

    \u5728\u9762\u8bd5\u4e2d\u7b80\u8981\u56de\u7b54\u65f6\uff0c\u53ef\u4ee5\u5f3a\u8c03 JavaScript \u7684\u5355\u7ebf\u7a0b\u7279\u6027\uff0c\u5229\u7528\u4e8b\u4ef6\u5faa\u73af\u548c\u56de\u8c03\u51fd\u6570\u673a\u5236\u6765\u5904\u7406\u5f02\u6b65\u4efb\u52a1\uff0c\u786e\u4fdd\u5728\u6267\u884c\u5f02\u6b65\u64cd\u4f5c\u65f6\u4e0d\u4f1a\u963b\u585e\u540e\u7eed\u4ee3\u7801\u7684\u6267\u884c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

    \u5728 JavaScript \u4e2d\uff0c\u5b9e\u73b0\u5f02\u6b65\u7684\u65b9\u5f0f\u4e3b\u8981\u4f9d\u8d56\u4e8e\u4e8b\u4ef6\u5faa\u73af\u548c\u56de\u8c03\u51fd\u6570\u673a\u5236\u3002 \u4e8b\u4ef6\u5faa\u73af\uff08Event Loop […]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[115],"tags":[],"class_list":["post-12826","post","type-post","status-publish","format-standard","hentry","category-javascript"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/12826","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=12826"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/12826\/revisions"}],"predecessor-version":[{"id":13512,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/12826\/revisions\/13512"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=12826"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=12826"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=12826"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}