How to solve the problem of slow opening speed of the first screen of vue project

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First we need to install webpack-bundle-analyzer

/ / webpack.prod.conf.jsif (config.build.bundleAnalyzerReport) {const BundleAnalyzerPlugin = require ('webpack-bundle-analyzer'). BundleAnalyzerPlugin webpackConfig.plugins.push (new BundleAnalyzerPlugin ())} / / config/index.jsbuild: {/ / Run the build command with an extra argument to / / View the bundle analyzer report after build finishes: / / `npm run build-- report` / / Set to `true`or `false` to always turn it on or off bundleAnalyzerReport: process.env.npm_config_report}

Run npm run build-- report

We can see that the elementui in vendor accounts for 500k, how to optimize it?

Add it to the webpack configuration file, and then it's time to witness miracles.

Externals: {'vue':' Vue', 'element-ui':' ELEMENT', 'axios':' axios'}

Take a look at our vendor volume again.

The total vendor is only 195k.

Where can I find the missing elementui files? The answer is cdn citation.

There was a reference to moment in the project before, but this library is too big. I found a library exactly like momentapi on github, but the file size is only 2kb.

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