{"id":91520,"date":"2024-04-09T18:30:35","date_gmt":"2024-04-09T10:30:35","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/91520.html"},"modified":"2024-04-09T18:30:36","modified_gmt":"2024-04-09T10:30:36","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8javascript%e4%b8%ad%e4%bc%98%e5%8c%96%e7%ac%ac%e4%b8%89%e6%96%b9%e5%ba%93%e4%bd%bf%e7%94%a8","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/91520.html","title":{"rendered":"\u5982\u4f55\u5728JavaScript\u4e2d\u4f18\u5316\u7b2c\u4e09\u65b9\u5e93\u4f7f\u7528"},"content":{"rendered":"

\"\u5982\u4f55\u5728JavaScript\u4e2d\u4f18\u5316\u7b2c\u4e09\u65b9\u5e93\u4f7f\u7528\"<\/p>\n

\u5728JavaScript\u4e2d\u4f18\u5316\u7b2c\u4e09\u65b9\u5e93\u7684\u4f7f\u7528\u53ef\u4ece\u51cf\u5c11\u4f9d\u8d56\u3001\u51cf\u5c0f\u4f53\u79ef\u3001\u63d0\u9ad8\u54cd\u5e94\u901f\u5ea6\u548c\u5b89\u5168\u6027<\/strong>\u56db\u4e2a\u65b9\u9762\u8fdb\u884c\u3002\u4f8b\u5982\uff0c\u9009\u62e9\u8f7b\u91cf\u7ea7\u5e93<\/strong>\uff0c\u53ef\u4ee5\u663e\u8457\u51cf\u5c0f\u9879\u76ee\u4f53\u79ef\uff0c\u52a0\u5feb\u52a0\u8f7d\u901f\u5ea6\u3002\u901a\u8fc7\u4ec5\u5305\u542b\u9700\u8981\u7684\u529f\u80fd\u6a21\u5757\uff0c\u6216\u4f7f\u7528\u6309\u9700\u52a0\u8f7d\uff0c\u907f\u514d\u52a0\u8f7d\u6574\u4e2a\u5e93\uff0c\u8fdb\u4e00\u6b65\u51cf\u5c11\u8d44\u6e90\u6d88\u8017\u3002\u6b64\u5916\uff0c\u4f7f\u7528\u6700\u65b0\u7a33\u5b9a\u7248\u672c\u7684\u5e93<\/strong>\uff0c\u4e0d\u4ec5\u53ef\u5229\u7528\u6700\u65b0\u7684\u6027\u80fd\u4f18\u5316\uff0c\u4e5f\u6709\u52a9\u4e8e\u4fdd\u969c\u5b89\u5168\u6027\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u901a\u5e38\u5efa\u8bae\u8fd0\u7528\u5ef6\u8fdf\u52a0\u8f7d\uff08lazy loading\uff09\u548c<\/strong>\u6a21\u5757\u5316\u5f15\u5165\uff08modular imports\uff09\u7b49\u6280\u672f\u7b56\u7565\uff0c\u5b83\u4eec\u6709\u6548\u5730\u51cf\u5c11\u4e86\u4e0d\u5fc5\u8981\u4ee3\u7801\u7684\u4f53\u79ef\uff0c\u63d0\u5347\u4e86\u5e94\u7528\u6027\u80fd\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u9009\u62e9\u5408\u9002\u7684\u7b2c\u4e09\u65b9\u5e93<\/h3>\n<\/p>\n

\u5728\u5f00\u59cb\u4f7f\u7528\u4efb\u4f55\u7b2c\u4e09\u65b9\u5e93\u524d\uff0c\u9996\u5148\u8981\u786e\u4fdd\u5b83\u9002\u5408\u9879\u76ee\u7684\u9700\u6c42\u3002\u8003\u91cf\u6807\u51c6\u5305\u62ec\u5e93\u7684\u5927\u5c0f\u3001\u529f\u80fd\u3001\u6027\u80fd\u3001\u517c\u5bb9\u6027\u3001\u66f4\u65b0\u9891\u7387\u548c\u793e\u533a\u652f\u6301<\/strong>\u3002\u6743\u8861\u9879\u76ee\u9700\u6c42\u4e0e\u7b2c\u4e09\u65b9\u5e93\u7684\u7279\u70b9\uff0c\u9009\u62e9\u6700\u5339\u914d\u7684\u5e93\uff0c\u540c\u65f6\u6ce8\u610f\u4e0d\u8981\u5f15\u5165\u8fc7\u591a\u529f\u80fd\u5197\u4f59\u7684\u5e93\u3002<\/p>\n<\/p>\n

\u9009\u62e9\u5e93\u65f6\uff0c\u4f18\u5148\u8003\u8651\u90a3\u4e9b\u63d0\u4f9b\u6309\u9700\u52a0\u8f7d\u529f\u80fd\u7684\u5e93\uff0c\u8fd9\u6837\u53ef\u4ee5\u4ec5\u5305\u542b\u9879\u76ee\u5b9e\u9645\u4f7f\u7528\u5230\u7684\u90e8\u5206\uff0c\u51cf\u5c11\u6574\u4f53\u4f53\u79ef\u3002\u6b64\u5916\uff0c\u53ef\u4ee5\u5229\u7528\u5de5\u5177\u5206\u6790\u5e93\u7684\u7ed3\u6784\u548c\u5927\u5c0f\uff0c\u4ece\u800c\u505a\u51fa\u66f4\u52a0\u7cbe\u786e\u7684\u9009\u62e9\u3002<\/p>\n<\/p>\n

\u4e8c\u3001\u6309\u9700\u5f15\u5165\u548c\u6a21\u5757\u5316<\/h3>\n<\/p>\n

\u73b0\u4ee3\u7684\u524d\u7aef\u6784\u5efa\u5de5\u5177\u5982Webpack\u548cRollup\u7b49\u652f\u6301\u6a21\u5757\u5316\u5f15\u5165\u7684\u65b9\u5f0f\u3002\u4f7f\u7528\u6a21\u5757\u5316\u5f15\u5165\u4e00\u4e2a\u5e93\u7684\u90e8\u5206\u529f\u80fd\uff0c\u80fd\u663e\u8457\u964d\u4f4e\u5e94\u7528\u7684\u6700\u7ec8\u4f53\u79ef<\/strong>\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u4f7f\u7528lodash<\/code>\u8fd9\u4e2a\u5de5\u5177\u5e93\uff0c\u800c\u9879\u76ee\u4e2d\u4ec5\u9700\u8981\u4f7f\u7528\u5230\u6570\u7ec4\u53bb\u91cd\u7684uniq<\/code>\u65b9\u6cd5\uff0c\u90a3\u4e48\u5c31\u53ef\u4ee5\u5355\u72ec\u5f15\u5165\u8fd9\u4e2a\u65b9\u6cd5\uff0c\u4ee5\u66ff\u4ee3\u6574\u4e2alodash<\/code>\u5e93\u3002<\/p>\n<\/p>\n

\u6a21\u5757\u5316\u5f15\u5165\u7684\u5b9e\u73b0\uff0c\u901a\u5e38\u9700\u8981\u4f7f\u7528\u5230ES6\u7684import<\/code>\u8bed\u6cd5\uff0c\u901a\u8fc7\u6307\u5b9a\u5177\u4f53\u6a21\u5757\u8def\u5f84\u6765\u8fdb\u884c\u3002\u76f8\u6bd4\u4e4b\u4e0b\uff0c\u67d0\u4e9b\u672a\u7ecf\u4f18\u5316\u7684\u5bfc\u5165\u65b9\u5f0f\u4f1a\u5c06\u6574\u4e2a\u5e93\u53ca\u5176\u6240\u6709\u4f9d\u8d56\u5168\u90e8\u6253\u5305\u5230\u6700\u7ec8\u7684\u6587\u4ef6\u4e2d\u3002<\/p>\n<\/p>\n

\u4e09\u3001\u4f7f\u7528Tree Shaking<\/h3>\n<\/p>\n

\u53c8\u79f0\u4f5c\u201c\u672a\u4f7f\u7528\u4ee3\u7801\u6d88\u9664\u201d\uff0cTree Shaking\u662f\u4e00\u79cd\u901a\u8fc7\u79fb\u9664JavaScript\u4e2d\u672a\u4f7f\u7528\u7684\u4ee3\u7801\u6765\u51cf\u8f7b\u5e94\u7528\u4f53\u79ef\u7684\u6280\u672f<\/strong>\u3002\u5728\u4f7f\u7528ES6\u6a21\u5757\u65f6\uff0c\u6784\u5efa\u5de5\u5177\u53ef\u4ee5\u5206\u6790\u51fa\u54ea\u4e9b\u5bfc\u51fa\u548c\u5bfc\u5165\u662f\u672a\u88ab\u4f7f\u7528\u7684\uff0c\u5e76\u5728\u6700\u7ec8\u7684Bundle\u4e2d\u5c06\u5176\u6392\u9664\u3002<\/p>\n<\/p>\n

Webpack\u548c\u5176\u4ed6\u6253\u5305\u5de5\u5177\u80fd\u81ea\u52a8\u8fdb\u884cTree Shaking\uff0c\u4f46\u9700\u786e\u4fdd\u9879\u76ee\u4e2d\u4f7f\u7528\u7684\u662fES6\u6a21\u5757\u3002\u540c\u65f6\uff0c\u6ce8\u610f\u68c0\u67e5\u7b2c\u4e09\u65b9\u5e93\u662f\u5426\u652f\u6301Tree Shaking\uff0c\u5426\u5219\u8be5\u6280\u672f\u65e0\u6cd5\u8fbe\u5230\u9884\u671f\u6548\u679c\u3002<\/p>\n<\/p>\n

\u56db\u3001\u5ef6\u8fdf\u52a0\u8f7d\u548c\u5f02\u6b65\u52a0\u8f7d<\/h3>\n<\/p>\n

\u5f53\u7b2c\u4e09\u65b9\u5e93\u975e\u9875\u9762\u521d\u59cb\u5316\u7acb\u5373\u9700\u6c42\u65f6\uff0c\u5ef6\u8fdf\u52a0\u8f7d\u6216\u5f02\u6b65\u52a0\u8f7d\u53ef\u4ee5\u63a8\u8fdf\u4ee3\u7801\u7684\u52a0\u8f7d\u548c\u6267\u884c\uff0c\u76f4\u81f3\u771f\u6b63\u9700\u8981\u65f6\u624d\u8fdb\u884c<\/strong>\u3002\u8fd9\u6837\u53ef\u4ee5\u51cf\u5c11\u521d\u59cb\u52a0\u8f7d\u65f6\u95f4\uff0c\u5bf9\u4e8e\u6539\u5584\u9875\u9762\u54cd\u5e94\u901f\u5ea6\u548c\u7528\u6237\u4f53\u9a8c\u975e\u5e38\u6709\u6548\u3002<\/p>\n<\/p>\n

\u4f8b\u5982\uff0c\u5728\u7528\u6237\u4e0e\u9875\u9762\u4e92\u52a8\u5e76\u89e6\u53d1\u67d0\u4e9b\u4e8b\u4ef6\u65f6\uff0c\u624d\u52a0\u8f7d\u5bf9\u5e94\u7684\u5e93\u3002\u4f7f\u7528\u52a8\u6001\u5bfc\u5165\uff08import()<\/code>\uff09\u5b9e\u73b0\u4ee3\u7801\u5206\u5272\uff0c\u5e76\u5c06\u7279\u5b9a\u7684\u5e93\u6216\u6a21\u5757\u4f5c\u4e3a\u72ec\u7acb\u7684chunk\u8fdb\u884c\u52a0\u8f7d\u3002<\/p>\n<\/p>\n

\u4e94\u3001\u4f18\u5316\u4f9d\u8d56\u7ba1\u7406<\/h3>\n<\/p>\n

\u7ba1\u7406\u9879\u76ee\u4e2d\u7684\u4f9d\u8d56\u662f\u786e\u4fdd\u5176\u5065\u5eb7\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u7684\u5173\u952e\u3002\u53ca\u65f6\u66f4\u65b0\u7b2c\u4e09\u65b9\u5e93\u662f\u5fc5\u987b\u7684\uff0c\u56e0\u4e3a\u8fd9\u901a\u5e38\u5305\u62ec\u6027\u80fd\u6539\u5584\u548c\u5b89\u5168\u4fee\u8865<\/strong>\u3002\u4f7f\u7528\u50cfnpm-check<\/code>\u6216dependabot<\/code>\u4e4b\u7c7b\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5e2e\u52a9\u8ddf\u8e2a\u4f9d\u8d56\u5e93\u7684\u6700\u65b0\u7248\u672c\u5e76\u7ba1\u7406\u66f4\u65b0\u3002<\/p>\n<\/p>\n

\u540c\u65f6\uff0c\u5b9a\u671f\u8fdb\u884c\u4f9d\u8d56\u5ba1\u8ba1\uff0c\u79fb\u9664\u4e0d\u518d\u4f7f\u7528\u6216\u5df2\u88ab\u66ff\u4ee3\u7684\u5e93\uff0c\u8fd8\u53ef\u4ee5\u51cf\u5c0f\u9879\u76ee\u4f53\u79ef\u548c\u6f5c\u5728\u6f0f\u6d1e\u3002<\/p>\n<\/p>\n

\u516d\u3001\u4f7f\u7528CDN\u548c\u7f13\u5b58\u4f18\u5316<\/h3>\n<\/p>\n

\u4f7f\u7528\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff08CDN\uff09\u52a0\u5feb\u7b2c\u4e09\u65b9\u5e93\u7684\u4e0b\u8f7d\u901f\u5ea6<\/strong>\uff0c\u8fd9\u662f\u56e0\u4e3aCDN\u901a\u8fc7\u5206\u5e03\u5728\u4e16\u754c\u5404\u5730\u7684\u670d\u52a1\u5668\u6765\u63d0\u4f9b\u8d44\u6e90\uff0c\u51cf\u5c11\u4e86\u8d44\u6e90\u52a0\u8f7d\u7684\u5ef6\u8fdf\u3002\u6b64\u5916\uff0c\u786e\u4fdd\u8bbe\u7f6e\u5408\u9002\u7684\u7f13\u5b58\u7b56\u7565\uff0c\u8ba9\u6d4f\u89c8\u5668\u80fd\u591f\u6709\u6548\u5730\u7f13\u5b58\u8fd9\u4e9b\u6587\u4ef6\uff0c\u907f\u514d\u91cd\u590d\u4e0b\u8f7d\u3002<\/p>\n<\/p>\n

\u4e03\u3001\u91cd\u89c6\u5b89\u5168\u6027<\/h3>\n<\/p>\n

\u8c28\u8bb0\uff0c\u7b2c\u4e09\u65b9\u5e93\u4e5f\u53ef\u80fd\u6210\u4e3a\u5b89\u5168\u6f0f\u6d1e\u7684\u6e29\u5e8a\u3002\u5b9a\u671f\u68c0\u67e5\u548c\u66f4\u65b0\u7b2c\u4e09\u65b9\u5e93\uff0c\u540c\u65f6\u5173\u6ce8\u5176\u5b89\u5168\u516c\u544a\u548c\u5df2\u77e5\u7684\u6f0f\u6d1e<\/strong>\uff0c\u53ef\u4ee5\u9884\u9632\u6f5c\u5728\u5b89\u5168\u95ee\u9898\u3002\u4f7f\u7528\u50cfnpm audit<\/code>\u8fd9\u6837\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5728\u9879\u76ee\u4e2d\u8bc6\u522b\u548c\u4fee\u590d\u5b89\u5168\u6f0f\u6d1e\u3002<\/p>\n<\/p>\n

\u516b\u3001\u6d4b\u91cf\u548c\u76d1\u63a7<\/h3>\n<\/p>\n

\u5728\u9879\u76ee\u4e2d\u5f15\u5165\u76d1\u63a7\u6765\u5206\u6790\u7b2c\u4e09\u65b9\u5e93\u7684\u6548\u679c<\/strong>\uff0c\u5305\u62ec\u5b83\u4eec\u5bf9\u6027\u80fd\u7684\u5f71\u54cd\u3001\u5f15\u8d77\u7684\u6f5c\u5728\u95ee\u9898\u7b49\u3002\u901a\u8fc7\u6027\u80fd\u76d1\u63a7\u5de5\u5177\uff0c\u53ef\u4ee5\u5f97\u5230\u5b9e\u9645\u4f7f\u7528\u60c5\u51b5\u7684\u6570\u636e\uff0c\u636e\u6b64\u8fdb\u884c\u4f18\u5316\u51b3\u7b56\u3002<\/p>\n<\/p>\n

\u6d4b\u91cf\u6307\u6807\u5e94\u8be5\u5305\u62ec\u52a0\u8f7d\u65f6\u95f4\u3001\u6267\u884c\u65f6\u95f4\u548c\u5185\u5b58\u4f7f\u7528\u7b49\u3002\u5229\u7528\u8fd9\u4e9b\u6570\u636e\u53ef\u4ee5\u6df1\u5165\u7406\u89e3\u6bcf\u4e2a\u7b2c\u4e09\u65b9\u5e93\u7684\u6210\u672c\u548c\u6536\u76ca\uff0c\u4ee5\u53ca\u5b83\u4eec\u4e0e\u6574\u4e2a\u5e94\u7528\u6027\u80fd\u4e4b\u95f4\u7684\u5173\u7cfb\u3002<\/p>\n<\/p>\n

\u7efc\u4e0a\u6240\u8ff0\uff0c\u901a\u8fc7\u7ec6\u81f4\u7684\u9009\u62e9\u3001\u9ad8\u6548\u7684\u5f15\u5165\u7b56\u7565\u3001\u4ee3\u7801\u4f53\u79ef\u4f18\u5316\u3001\u5408\u7406\u7684\u52a0\u8f7d\u673a\u5236\u3001\u6301\u7eed\u7684\u4f9d\u8d56\u7ba1\u7406\u3001\u5b89\u5168\u6027\u5173\u6ce8\u4e0e\u6027\u80fd\u76d1\u63a7\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8JavaScript\u9879\u76ee\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93\u7684\u6574\u4f53\u6548\u7387\u4e0e\u5b89\u5168\u6027\u3002\u9002\u5f53\u7684\u4f18\u5316\u8fd8\u5c06\u5e2e\u52a9\u4f60\u4fdd\u6301\u4ee3\u7801\u8d28\u91cf\uff0c\u6ee1\u8db3\u7528\u6237\u5bf9\u901f\u5ea6\u548c\u4f53\u9a8c\u7684\u671f\u5f85\u3002<\/p>\n<\/p>\n

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

\u5982\u4f55\u63d0\u9ad8JavaScript\u4e2d\u7b2c\u4e09\u65b9\u5e93\u7684\u6027\u80fd\uff1f<\/strong><\/p>\n

\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93\u662f\u5728JavaScript\u5f00\u53d1\u4e2d\u5e38\u89c1\u7684\u505a\u6cd5\uff0c\u4f46\u662f\u5982\u679c\u4e0d\u6b63\u786e\u4f7f\u7528\u53ef\u80fd\u4f1a\u5bf9\u6027\u80fd\u4ea7\u751f\u4e0d\u826f\u5f71\u54cd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f18\u5316\u7b2c\u4e09\u65b9\u5e93\u4f7f\u7528\u7684\u65b9\u6cd5\uff1a<\/p>\n

    \n
  1. \n

    \u4ec5\u5bfc\u5165\u9700\u8981\u7684\u529f\u80fd<\/strong>\uff1a\u7b2c\u4e09\u65b9\u5e93\u901a\u5e38\u63d0\u4f9b\u4e86\u5927\u91cf\u7684\u529f\u80fd\u548c\u65b9\u6cd5\uff0c\u4f46\u662f\u4e0d\u4e00\u5b9a\u5168\u90e8\u90fd\u88ab\u9879\u76ee\u6240\u9700\u3002\u53ea\u5bfc\u5165\u9700\u8981\u7684\u6a21\u5757\u6216\u65b9\u6cd5\u53ef\u4ee5\u51cf\u5c0f\u4ee3\u7801\u4f53\u79ef\u5e76\u63d0\u5347\u52a0\u8f7d\u901f\u5ea6\u3002<\/p>\n<\/li>\n

  2. \n

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  3. \n

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  5. \n

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  6. \n

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