{"id":155657,"date":"2024-05-08T11:56:39","date_gmt":"2024-05-08T03:56:39","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/155657.html"},"modified":"2024-05-08T11:56:44","modified_gmt":"2024-05-08T03:56:44","slug":"%e6%96%b0%e6%89%8b%e5%ad%a6%e4%b9%a0-javascript-%e8%af%a5%e6%80%8e%e4%b9%88%e5%85%a5%e9%97%a8","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/155657.html","title":{"rendered":"\u65b0\u624b\u5b66\u4e60 JavaScript \u8be5\u600e\u4e48\u5165\u95e8"},"content":{"rendered":"

\"\u65b0\u624b\u5b66\u4e60<\/p>\n

JavaScript \u4f5c\u4e3a\u4e00\u6b3e\u5e7f\u6cdb\u5e94\u7528\u4e8e\u7f51\u9875\u5f00\u53d1\u7684\u7f16\u7a0b\u8bed\u8a00\uff0c\u5bf9\u4e8e\u65b0\u624b\u800c\u8a00\uff0c\u5165\u95e8\u5e94\u8be5\u9075\u5faa\u7684\u6b65\u9aa4\u5305\u62ec\u7406\u89e3\u57fa\u7840\u6982\u5ff5\u3001\u638c\u63e1\u6838\u5fc3\u8bed\u6cd5\u3001\u5b66\u4e60DOM\u64cd\u4f5c\u548c\u6d4f\u89c8\u5668API\u3001\u719f\u6089\u4e8b\u4ef6\u5904\u7406\u3001\u4ee5\u53ca\u5b9e\u8df5\u9879\u76ee\u6784\u5efa<\/strong>\u3002\u9996\u5148\uff0c\u7406\u89e3\u57fa\u7840\u6982\u5ff5<\/strong>\u662f\u91cd\u8981\u7684\u3002JavaScript \u7684\u57fa\u7840\u6982\u5ff5\u56ca\u62ec\u4e86\u53d8\u91cf\u3001\u6570\u636e\u7c7b\u578b\u3001\u64cd\u4f5c\u7b26\u3001\u63a7\u5236\u7ed3\u6784\u7b49\u3002\u5bf9\u8fd9\u4e9b\u6709\u4e86\u6df1\u523b\u7684\u7406\u89e3\uff0c\u53ef\u4ee5\u5e2e\u52a9\u65b0\u624b\u5feb\u901f\u8fdb\u5165\u72b6\u6001\uff0c\u4e3a\u5b66\u4e60\u66f4\u9ad8\u7ea7\u7684\u6982\u5ff5\u6253\u4e0b\u575a\u5b9e\u57fa\u7840\u3002<\/p>\n<\/p>\n

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JavaScript \u62e5\u6709\u52a8\u6001\u7c7b\u578b\uff0c\u5e76\u63d0\u4f9b\u4e86\u591a\u79cd\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff0c\u4f8b\u5982\u5b57\u7b26\u4e32\uff08String\uff09\u3001\u6570\u503c\uff08Number\uff09\u3001\u5e03\u5c14\u503c\uff08Boolean\uff09\u548c\u65b0\u52a0\u5165\u7684Symbol\u7c7b\u578b\u3002\u4e86\u89e3\u5982\u4f55\u58f0\u660e\u53d8\u91cf\u4ee5\u53ca\u53d8\u91cf\u7684\u4f5c\u7528\u57df\u89c4\u5219\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002ES6\u4e4b\u540e\uff0c\u6211\u4eec\u4e3b\u8981\u7528let<\/code>\u548cconst<\/code>\u8fdb\u884c\u53d8\u91cf\u58f0\u660e\uff0c\u5b83\u4eec\u63d0\u4f9b\u4e86\u5757\u7ea7\u4f5c\u7528\u57df\uff08block scope\uff09\u7684\u6982\u5ff5\u3002<\/p>\n<\/p>\n

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\u4e8c\u3001\u638c\u63e1\u6838\u5fc3\u8bed\u6cd5<\/h3>\n<\/p>\n

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\u51fd\u6570\u662f\u7ec4\u7ec7\u548c\u590d\u7528\u4ee3\u7801\u7684\u5173\u952e\u3002JavaScript \u4e2d\u7684\u51fd\u6570\u662f\u4e00\u7b49\u516c\u6c11\uff0c\u610f\u5473\u7740\u5b83\u4eec\u53ef\u4ee5\u50cf\u4efb\u4f55\u5176\u4ed6\u53d8\u91cf\u4e00\u6837\u4f20\u9012\u548c\u8d4b\u503c\u3002\u7406\u89e3\u533f\u540d\u51fd\u6570\u3001\u56de\u8c03\u51fd\u6570\u53ca\u65b0\u7684\u7bad\u5934\u51fd\u6570\uff08arrow function\uff09\u7b49\u6982\u5ff5\uff0c\u5bf9\u4e8e\u7f16\u5199\u73b0\u4ee3JavaScript\u4ee3\u7801\u5341\u5206\u91cd\u8981\u3002<\/p>\n<\/p>\n

\u5bf9\u8c61\u548c\u6570\u7ec4<\/h4>\n<\/p>\n

\u5bf9\u8c61\u548c\u6570\u7ec4\u662f\u7ec4\u7ec7\u591a\u4e2a\u6570\u636e\u7684\u7ed3\u6784\uff0c\u638c\u63e1\u5b83\u4eec\u7684\u64cd\u4f5c\u5bf9\u4e8e\u7ba1\u7406\u548c\u7ef4\u62a4\u5927\u91cf\u6570\u636e\u81f3\u5173\u91cd\u8981\u3002ES6 \u5f15\u5165\u4e86\u8bf8\u5982\u6790\u6784\uff08destructuring\uff09\u3001\u5c55\u5f00\uff08spread\uff09\u64cd\u4f5c\u7b26\u7b49\u65b0\u7279\u6027\uff0c\u5927\u5927\u65b9\u4fbf\u4e86\u6570\u636e\u64cd\u4f5c\u3002<\/p>\n<\/p>\n

\u4e09\u3001\u5b66\u4e60DOM\u64cd\u4f5c\u548c\u6d4f\u89c8\u5668API<\/h3>\n<\/p>\n

DOM\u64cd\u4f5c<\/h4>\n<\/p>\n

\u6587\u6863\u5bf9\u8c61\u6a21\u578b\uff08DOM\uff09\u662f\u4e0e\u7f51\u9875\u5185\u5bb9\u4ea4\u4e92\u7684\u57fa\u7840\uff0c\u638c\u63e1\u5982\u4f55\u4f7f\u7528JavaScript\u6765\u67e5\u8be2\u3001\u4fee\u6539\u548c\u5220\u9664DOM\u5143\u7d20\uff0c\u4ee5\u53ca\u5982\u4f55\u52a8\u6001\u521b\u5efa\u5143\u7d20\u662f\u524d\u7aef\u5f00\u53d1\u7684\u6838\u5fc3\u6280\u80fd\u3002<\/p>\n<\/p>\n

\u6d4f\u89c8\u5668API<\/h4>\n<\/p>\n

\u6d4f\u89c8\u5668\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684API\uff0c\u4f8b\u5982\u7528\u6765\u5904\u7406HTTP\u8bf7\u6c42\u7684Fetch API<\/code>\u6216\u7528\u4e8e\u672c\u5730\u5b58\u50a8\u7684LocalStorage<\/code>\u3002\u719f\u6089\u8fd9\u4e9bAPI\u53ef\u4ee5\u6269\u5c55JavaScript\u7684\u80fd\u529b\uff0c\u5b9e\u73b0\u66f4\u590d\u6742\u7684\u5e94\u7528\u903b\u8f91\u3002<\/p>\n<\/p>\n

\u56db\u3001\u719f\u6089\u4e8b\u4ef6\u5904\u7406<\/h3>\n<\/p>\n

\u4e8b\u4ef6\u76d1\u542c<\/h4>\n<\/p>\n

\u4e8b\u4ef6\u662f\u5728\u6d4f\u89c8\u5668\u4e2d\u6267\u884c\u7684\u52a8\u4f5c\uff0c\u5982\u70b9\u51fb\u3001\u6eda\u52a8\u3001\u952e\u76d8\u8f93\u5165\u7b49\u3002\u5b66\u4e60\u5982\u4f55\u5904\u7406\u8fd9\u4e9b\u4e8b\u4ef6\u5bf9\u4e8e\u5f00\u53d1\u4ea4\u4e92\u5f0f\u7f51\u9875\u975e\u5e38\u91cd\u8981\u3002\u7406\u89e3\u4e8b\u4ef6\u4f20\u9012\u673a\u5236\uff08\u5192\u6ce1\u548c\u6355\u83b7\uff09\u3001\u4e8b\u4ef6\u59d4\u6258\u7b49\uff0c\u6709\u52a9\u4e8e\u7f16\u5199\u9ad8\u6548\u3001\u7b80\u6d01\u7684\u4e8b\u4ef6\u5904\u7406\u4ee3\u7801\u3002<\/p>\n<\/p>\n

\u5f02\u6b65\u7f16\u7a0b<\/h4>\n<\/p>\n

\u5f02\u6b65\u7f16\u7a0b\u662fJavaScript\u7684\u4e00\u4e2a\u5173\u952e\u6982\u5ff5\uff0c\u7279\u522b\u662f\u5728\u5904\u7406\u8bf8\u5982\u6587\u4ef6\u8bfb\u53d6\u3001\u7f51\u7edc\u8bf7\u6c42\u7b49\u8017\u65f6\u64cd\u4f5c\u65f6\u3002Promise\u548casync\/awAI<\/a>t\u7684\u51fa\u73b0\u6781\u5927\u5730\u7b80\u5316\u4e86\u5f02\u6b65\u64cd\u4f5c\u7684\u5904\u7406\u3002<\/p>\n<\/p>\n

\u4e94\u3001\u5b9e\u8df5\u9879\u76ee\u6784\u5efa<\/h3>\n<\/p>\n

\u5b66\u4e60\u5de5\u5177\u548c\u6846\u67b6<\/h4>\n<\/p>\n

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\u6784\u5efa\u5b9e\u9645\u9879\u76ee<\/h4>\n<\/p>\n

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\u603b\u7ed3\u6765\u8bf4\uff0c\u5b66\u4e60JavaScript\u7684\u5173\u952e\u5728\u4e8e\u4e0d\u65ad\u5b9e\u8df5\uff0c\u5e76\u7ed3\u5408\u9879\u76ee\u6765\u5de9\u56fa\u5df2\u5b66\u77e5\u8bc6\u3002\u968f\u7740\u6280\u672f\u7684\u4e0d\u65ad\u66f4\u65b0\uff0c\u4fdd\u6301\u5b66\u4e60\u548c\u5b9e\u8df5\u4e5f\u662f\u5341\u5206\u5fc5\u8981\u7684\u3002<\/p>\n<\/p>\n

\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n

1. JavaScript\u5165\u95e8\u9700\u8981\u5177\u5907\u54ea\u4e9b\u57fa\u7840\u77e5\u8bc6\uff1f<\/strong>
\n\u8981\u5b66\u4e60JavaScript\uff0c\u9996\u5148\u9700\u8981\u638c\u63e1HTML\u548cCSS\u7684\u57fa\u7840\u77e5\u8bc6\u3002\u56e0\u4e3aJavaScript\u901a\u5e38\u7528\u6765\u64cd\u4f5c\u548c\u4fee\u6539\u7f51\u9875\u7684\u5185\u5bb9\u548c\u6837\u5f0f\uff0c\u6240\u4ee5\u4e86\u89e3\u8fd9\u4e24\u4e2a\u524d\u7aef\u57fa\u7840\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u540c\u65f6\uff0c\u4e86\u89e3\u7f16\u7a0b\u57fa\u7840\u77e5\u8bc6\uff08\u5982\u53d8\u91cf\u3001\u5faa\u73af\u3001\u6761\u4ef6\u8bed\u53e5\u7b49\uff09\u4e5f\u662f\u5fc5\u8981\u7684\uff0c\u8fd9\u4e9b\u77e5\u8bc6\u53ef\u4ee5\u5e2e\u52a9\u4f60\u66f4\u597d\u5730\u7406\u89e3\u548c\u8fd0\u7528JavaScript\u3002<\/p>\n

2. \u5b66\u4e60JavaScript\u6709\u54ea\u4e9b\u597d\u7684\u8d44\u6e90\u63a8\u8350\uff1f<\/strong>
\n\u6709\u8bb8\u591a\u5728\u7ebf\u8d44\u6e90\u53ef\u4ee5\u5e2e\u52a9\u4f60\u5b66\u4e60JavaScript\u3002\u4e00\u4e9b\u77e5\u540d\u7684\u5b66\u4e60\u7f51\u7ad9\uff08\u5982MDN\u3001W3Schools\u3001Codecademy\u7b49\uff09\u63d0\u4f9b\u4e86\u514d\u8d39\u7684JavaScript\u6559\u7a0b\u548c\u7ec3\u4e60\u9898\uff0c\u9002\u5408\u521d\u5b66\u8005\u5165\u95e8\u3002\u6b64\u5916\uff0c\u8fd8\u53ef\u4ee5\u67e5\u9605\u4e00\u4e9b\u7ecf\u5178\u7684JavaScript\u6559\u6750\uff0c\u5982\u300aJavaScript\u6743\u5a01\u6307\u5357\u300b\u3001\u300a\u4f60\u4e0d\u77e5\u9053\u7684JavaScript\u300b\u7b49\u3002\u53e6\u5916\uff0c\u52a0\u5165\u793e\u533a\u8bba\u575b\u6216\u53c2\u4e0e\u5728\u7ebf\u7f16\u7a0b\u8bfe\u7a0b\u4e5f\u80fd\u591f\u548c\u5176\u4ed6\u5b66\u4e60\u8005\u4e92\u76f8\u4ea4\u6d41\u548c\u5b66\u4e60\u3002<\/p>\n

3. \u6709\u6ca1\u6709\u4ec0\u4e48\u5b9e\u8df5\u9879\u76ee\u53ef\u4ee5\u5e2e\u52a9\u6211\u66f4\u597d\u5730\u719f\u7ec3\u5e94\u7528JavaScript\uff1f<\/strong>
\n\u7ec3\u4e60\u548c\u5b9e\u8df5\u662f\u5b66\u4e60JavaScript\u7684\u91cd\u8981\u65b9\u6cd5\u3002\u4f60\u53ef\u4ee5\u5c1d\u8bd5\u7528JavaScript\u6765\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u7f51\u9875\u5c0f\u6e38\u620f\uff0c\u6216\u8005\u5236\u4f5c\u4e00\u4e2a\u52a8\u6001\u7684\u7f51\u9875\u7279\u6548\u3002\u6b64\u5916\uff0c\u4f60\u8fd8\u53ef\u4ee5\u5c1d\u8bd5\u4f7f\u7528JavaScript\u6765\u64cd\u4f5c\u6d4f\u89c8\u5668\u7684DOM\u5143\u7d20\uff0c\u5b9e\u73b0\u4e00\u4e9b\u5b9e\u7528\u7684\u529f\u80fd\uff0c\u5982\u8868\u5355\u9a8c\u8bc1\u3001\u56fe\u7247\u8f6e\u64ad\u7b49\u3002\u901a\u8fc7\u5b9e\u8df5\u9879\u76ee\uff0c\u4f60\u80fd\u591f\u66f4\u597d\u5730\u7406\u89e3\u548c\u5e94\u7528JavaScript\u7684\u77e5\u8bc6\uff0c\u63d0\u5347\u7f16\u7a0b\u80fd\u529b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"JavaScript \u4f5c\u4e3a\u4e00\u6b3e\u5e7f\u6cdb\u5e94\u7528\u4e8e\u7f51\u9875\u5f00\u53d1\u7684\u7f16\u7a0b\u8bed\u8a00\uff0c\u5bf9\u4e8e\u65b0\u624b\u800c\u8a00\uff0c\u5165\u95e8\u5e94\u8be5\u9075\u5faa\u7684\u6b65\u9aa4\u5305\u62ec\u7406\u89e3\u57fa\u7840\u6982\u5ff5\u3001 […]","protected":false},"author":3,"featured_media":155661,"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\/155657"}],"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=155657"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/155657\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/155661"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=155657"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=155657"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=155657"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}