{"id":158019,"date":"2024-05-08T12:42:15","date_gmt":"2024-05-08T04:42:15","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/158019.html"},"modified":"2024-05-08T12:42:18","modified_gmt":"2024-05-08T04:42:18","slug":"%e5%a6%82%e4%bd%95%e7%94%a8-javascript-%e4%bd%8d%e8%bf%90%e7%ae%97%e5%ae%9e%e7%8e%b0%e4%b8%80%e4%b8%aa%e5%a4%a7%e6%95%b0%e7%bb%84%e5%bf%ab%e9%80%9f%e7%ad%9b%e9%80%89","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/158019.html","title":{"rendered":"\u5982\u4f55\u7528 javascript \u4f4d\u8fd0\u7b97\u5b9e\u73b0\u4e00\u4e2a\u5927\u6570\u7ec4\u5feb\u901f\u7b5b\u9009"},"content":{"rendered":"<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/26220518\/b2ca68ec-6bd2-4d9a-a4b3-dd2ba660143b.webp\" alt=\"\u5982\u4f55\u7528 javascript \u4f4d\u8fd0\u7b97\u5b9e\u73b0\u4e00\u4e2a\u5927\u6570\u7ec4\u5feb\u901f\u7b5b\u9009\" 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&amp; 1<\/code>\u5c31\u80fd\u9ad8\u6548\u5b8c\u6210\uff0c\u5176\u4e2d<code>n<\/code>\u662f\u76ee\u6807\u6570\u5b57\u3002<\/p>\n<\/p>\n<p><h3>\u7ec4\u5408\u7b5b\u9009\u6761\u4ef6<\/h3>\n<\/p>\n<p><p>\u6709\u65f6\u6211\u4eec\u9700\u8981\u6309\u7167\u591a\u4e2a\u6761\u4ef6\u7b5b\u9009\u6570\u7ec4\u3002\u901a\u8fc7\u4f4d\u63a9\u7801\uff0c\u6211\u4eec\u53ef\u4ee5\u4e3a\u6bcf\u4e2a\u7b5b\u9009\u6761\u4ef6\u8d4b\u4e88\u4e00\u4e2a\u4f4d\u63a9\u7801\uff0c\u7136\u540e\u5229\u7528\u4f4d\u8fd0\u7b97\u7b26\u7ec4\u5408\u8fd9\u4e9b\u6761\u4ef6\u3002\u8fd9\u79cd\u65b9\u6cd5\u7684\u597d\u5904\u662f\uff0c\u7b5b\u9009\u903b\u8f91\u6e05\u6670\uff0c\u4e14\u53ef\u4ee5\u7075\u6d3b\u5730\u7ec4\u5408\u591a\u4e2a\u6761\u4ef6\uff0c\u6781\u5927\u5730\u63d0\u5347\u4e86\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n<\/p>\n<p><h2>\u56db\u3001\u6027\u80fd\u5206\u6790<\/h2>\n<\/p>\n<p><h3>\u4f4d\u8fd0\u7b97\u4e0e\u5e38\u89c4\u65b9\u6cd5\u7684\u6027\u80fd\u5bf9\u6bd4<\/h3>\n<\/p>\n<p><p>\u6027\u80fd\u5206\u6790\u662f\u9a8c\u8bc1\u4f4d\u8fd0\u7b97\u5feb\u901f\u7b5b\u9009\u5927\u6570\u7ec4\u6709\u6548\u6027\u7684\u5173\u952e\u4e00\u6b65\u3002\u901a\u8fc7\u5bf9\u6bd4\u4f4d\u8fd0\u7b97\u65b9\u6cd5\u4e0e\u4f20\u7edf\u7b5b\u9009\u65b9\u6cd5\uff08\u5982\u4f7f\u7528\u5faa\u73af\u5224\u65ad\uff09\u5728\u4e0d\u540c\u6570\u636e\u91cf\u4e0b\u7684\u6267\u884c\u65f6\u95f4\uff0c\u6211\u4eec\u53ef\u4ee5\u76f4\u89c2\u5730\u770b\u5230\u4f4d\u8fd0\u7b97\u5728\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\u65f6\u7684\u6027\u80fd\u4f18\u52bf\u3002<\/p>\n<\/p>\n<p><h3>\u4f18\u5316\u7b56\u7565<\/h3>\n<\/p>\n<p><p>\u5c3d\u7ba1\u4f4d\u8fd0\u7b97\u80fd\u591f\u63d0\u4f9b\u51fa\u8272\u7684\u6027\u80fd\uff0c\u4f46\u6b63\u786e\u7684\u5e94\u7528\u548c\u4f18\u5316\u7b56\u7565\u4ecd\u7136\u975e\u5e38\u91cd\u8981\u3002\u4f8b\u5982\uff0c\u5408\u7406\u5b89\u6392\u4f4d\u63a9\u7801\u7684\u5206\u914d\u3001\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u4f4d\u8fd0\u7b97\u64cd\u4f5c\u7b49\uff0c\u90fd\u80fd\u8fdb\u4e00\u6b65\u63d0\u5347\u7b5b\u9009\u7684\u6548\u7387\u3002\u6b64\u5916\uff0c\u8003\u8651\u5230JavaScript\u7684\u7279\u6027\uff0c\u8fd8\u9700\u6ce8\u610f\u6570\u503c\u8303\u56f4\u548c\u7cbe\u5ea6\u95ee\u9898\uff0c\u4ee5\u9632\u6b62\u4f4d\u8fd0\u7b97\u5f15\u53d1\u7684\u6570\u636e\u9519\u8bef\u3002<\/p>\n<\/p>\n<p><p>\u901a\u8fc7\u4ee5\u4e0a\u7684\u5206\u6790\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\uff0c\u4f7f\u7528JavaScript\u4f4d\u8fd0\u7b97\u5b9e\u73b0\u5927\u6570\u7ec4\u7684\u5feb\u901f\u7b5b\u9009\u4e0d\u4ec5\u53ef\u884c\uff0c\u800c\u4e14\u6548\u7387\u9ad8\u3001\u8282\u7701\u5185\u5b58\u3002\u4f4d\u8fd0\u7b97\u548c\u4f4d\u63a9\u7801\u6280\u672f\u5728\u8fd9\u4e00\u8fc7\u7a0b\u4e2d\u53d1\u6325\u4e86\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002\u7136\u800c\uff0c\u8981\u5145\u5206\u5229\u7528\u8fd9\u4e9b\u6280\u672f\u7684\u4f18\u52bf\uff0c\u8fd8\u9700\u8981\u6df1\u5165\u7406\u89e3\u4f4d\u8fd0\u7b97\u7684\u539f\u7406\uff0c\u5e76\u6839\u636e\u5b9e\u9645\u5e94\u7528\u573a\u666f\u505a\u51fa\u5408\u7406\u7684\u4f18\u5316\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p><strong>1. \u5982\u4f55\u4f7f\u7528 JavaScript \u7684\u4f4d\u8fd0\u7b97\u6765\u5feb\u901f\u7b5b\u9009\u4e00\u4e2a\u5927\u6570\u7ec4\uff1f<\/strong><\/p>\n<p>\u7b54\uff1a\u4f7f\u7528 JavaScript \u7684\u4f4d\u8fd0\u7b97\u53ef\u4ee5\u5b9e\u73b0\u5feb\u901f\u7684\u6570\u7ec4\u7b5b\u9009\uff0c\u5177\u4f53\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\u521b\u5efa\u4e00\u4e2a\u7a7a\u6570\u7ec4\u6765\u5b58\u50a8\u7b5b\u9009\u540e\u7684\u7ed3\u679c\u3002<\/li>\n<li>\u904d\u5386\u539f\u59cb\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u3002<\/li>\n<li>\u5bf9\u6bcf\u4e2a\u5143\u7d20\u5e94\u7528\u4f4d\u8fd0\u7b97\u7b26\u6765\u8fdb\u884c\u7b5b\u9009\u64cd\u4f5c\u3002<\/li>\n<li>\u5982\u679c\u7b5b\u9009\u6210\u529f\uff0c\u5c06\u5143\u7d20\u6dfb\u52a0\u5230\u65b0\u7684\u7ed3\u679c\u6570\u7ec4\u4e2d\u3002<\/li>\n<li>\u8fd4\u56de\u7ed3\u679c\u6570\u7ec4\u3002<\/li>\n<\/ol>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f8b\u5b50\uff0c\u4f7f\u7528\u4f4d\u8fd0\u7b97\u5c06\u5927\u6570\u7ec4\u4e2d\u7684\u5076\u6570\u63d0\u53d6\u51fa\u6765\uff1a<\/p>\n<pre><code class=\"language-javascript\">function filterArray(array) {\n  var result = [];\n  for (var i = 0; i &lt; array.length; i++) {\n    if (array[i] &amp; 1 === 0) { \/\/ \u4f7f\u7528\u4f4d\u8fd0\u7b97 &amp; \u6765\u5224\u65ad\u662f\u5426\u4e3a\u5076\u6570\n      result.push(array[i]);\n    }\n  }\n  return result;\n}\n\n\/\/ \u793a\u4f8b\u7528\u6cd5\nvar myArray = [1, 2, 3, 4, 5, 6];\nvar filteredArray = filterArray(myArray);\nconsole.log(filteredArray); \/\/ \u8f93\u51fa [2, 4, 6]\n<\/code><\/pre>\n<p><strong>2. JavaScript \u4e2d\u7684\u4f4d\u8fd0\u7b97\u7b26\u6709\u54ea\u4e9b\u7528\u6cd5\uff1f<\/strong><\/p>\n<p>\u7b54\uff1aJavaScript \u4e2d\u5e38\u7528\u7684\u4f4d\u8fd0\u7b97\u7b26\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u4e0e\u8fd0\u7b97\u7b26\uff08<code>&amp;<\/code>\uff09\uff1a\u5c06\u4e24\u4e2a\u6570\u5bf9\u5e94\u7684\u4e8c\u8fdb\u5236\u4f4d\u8fdb\u884c\u4e0e\u8fd0\u7b97\uff0c\u7ed3\u679c\u4e2d\u7684\u6bcf\u4e00\u4f4d\u4e3a 1 \u5f53\u4e14\u4ec5\u5f53\u4e24\u4e2a\u5bf9\u5e94\u7684\u4e8c\u8fdb\u5236\u4f4d\u90fd\u4e3a 1\u3002<\/li>\n<li>\u6216\u8fd0\u7b97\u7b26\uff08<code>|<\/code>\uff09\uff1a\u5c06\u4e24\u4e2a\u6570\u5bf9\u5e94\u7684\u4e8c\u8fdb\u5236\u4f4d\u8fdb\u884c\u6216\u8fd0\u7b97\uff0c\u7ed3\u679c\u4e2d\u7684\u6bcf\u4e00\u4f4d\u4e3a 1 \u5f53\u4e14\u4ec5\u5f53\u4e24\u4e2a\u5bf9\u5e94\u7684\u4e8c\u8fdb\u5236\u4f4d\u4e2d\u81f3\u5c11\u4e00\u4e2a\u4e3a 1\u3002<\/li>\n<li>\u975e\u8fd0\u7b97\u7b26\uff08<code>~<\/code>\uff09\uff1a\u5bf9\u4e00\u4e2a\u4e8c\u8fdb\u5236\u6570\u8fdb\u884c\u6309\u4f4d\u53d6\u53cd\u64cd\u4f5c\uff0c0 \u53d8\u4e3a 1\uff0c1 \u53d8\u4e3a 0\u3002<\/li>\n<li>\u5f02\u6216\u8fd0\u7b97\u7b26\uff08<code>^<\/code>\uff09\uff1a\u5c06\u4e24\u4e2a\u6570\u5bf9\u5e94\u7684\u4e8c\u8fdb\u5236\u4f4d\u8fdb\u884c\u5f02\u6216\u8fd0\u7b97\uff0c\u7ed3\u679c\u4e2d\u7684\u6bcf\u4e00\u4f4d\u4e3a 1 \u5f53\u4e14\u4ec5\u5f53\u4e24\u4e2a\u5bf9\u5e94\u7684\u4e8c\u8fdb\u5236\u4f4d\u4e0d\u540c\u3002<\/li>\n<li>\u5de6\u79fb\u8fd0\u7b97\u7b26\uff08<code>&lt;&lt;<\/code>\uff09\uff1a\u5c06\u4e00\u4e2a\u6570\u7684\u4e8c\u8fdb\u5236\u4f4d\u5411\u5de6\u79fb\u52a8\u6307\u5b9a\u7684\u4f4d\u6570\uff0c\u53f3\u8fb9\u7a7a\u51fa\u7684\u4f4d\u8865 0\u3002<\/li>\n<li>\u53f3\u79fb\u8fd0\u7b97\u7b26\uff08<code>&gt;&gt;<\/code>\uff09\uff1a\u5c06\u4e00\u4e2a\u6570\u7684\u4e8c\u8fdb\u5236\u4f4d\u5411\u53f3\u79fb\u52a8\u6307\u5b9a\u7684\u4f4d\u6570\uff0c\u5de6\u8fb9\u7a7a\u51fa\u7684\u4f4d\u6839\u636e\u7b26\u53f7\u4f4d\u8865 0 \u6216\u8865 1\uff08\u53d6\u51b3\u4e8e\u6240\u7528\u7684 JavaScript \u7248\u672c\uff0c\u4e00\u822c\u662f\u8865 0\uff09\u3002<\/li>\n<li>\u65e0\u7b26\u53f7\u53f3\u79fb\u8fd0\u7b97\u7b26\uff08<code>&gt;&gt;&gt;<\/code>\uff09\uff1a\u5c06\u4e00\u4e2a\u6570\u7684\u4e8c\u8fdb\u5236\u4f4d\u5411\u53f3\u79fb\u52a8\u6307\u5b9a\u7684\u4f4d\u6570\uff0c\u5de6\u8fb9\u7a7a\u51fa\u7684\u4f4d\u90fd\u8865 0\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u4e9b\u4f4d\u8fd0\u7b97\u7b26\u53ef\u7528\u4e8e\u5404\u79cd\u4e0d\u540c\u7684\u8ba1\u7b97\u548c\u64cd\u4f5c\uff0c\u5305\u62ec\u5feb\u901f\u7b5b\u9009\u5927\u6570\u7ec4\u7684\u64cd\u4f5c\u3002<\/p>\n<p><strong>3. \u5982\u4f55\u4f18\u5316\u4f7f\u7528 JavaScript \u8fdb\u884c\u5927\u6570\u7ec4\u7b5b\u9009\u7684\u4f4d\u8fd0\u7b97\u65b9\u6cd5\uff1f<\/strong><\/p>\n<p>\u7b54\uff1a\u8981\u4f18\u5316\u4f7f\u7528 JavaScript 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Web Workers \u6216\u5176\u4ed6\u5e76\u884c\u5904\u7406\u6280\u672f\u6765\u63d0\u9ad8\u6548\u7387\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u662f\u4e00\u4e9b\u4f18\u5316\u65b9\u6cd5\u7684\u793a\u4f8b\uff0c\u5177\u4f53\u7684\u4f18\u5316\u7b56\u7565\u53ef\u80fd\u56e0\u5177\u4f53\u60c5\u51b5\u800c\u5f02\uff0c\u6839\u636e\u5b9e\u9645\u9700\u6c42\u8fdb\u884c\u5408\u7406\u9009\u62e9\u548c\u8c03\u6574\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u7528JavaScript\u4f4d\u8fd0\u7b97\u5b9e\u73b0\u4e00\u4e2a\u5927\u6570\u7ec4\u7684\u5feb\u901f\u7b5b\u9009\u662f\u4e00\u79cd\u9ad8\u6548\u7684\u7b97\u6cd5\u4f18\u5316\u6280\u5de7\uff0c\u4e3b\u8981\u5305\u62ec\u4f4d\u8fd0\u7b97\u57fa\u7840\u3001\u4f4d\u63a9\u7801\u6280\u672f\u3001 [&hellip;]","protected":false},"author":3,"featured_media":158027,"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\/158019"}],"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=158019"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/158019\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/158027"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=158019"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=158019"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=158019"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}