webpack-bundle-analyzer

const BundleAnalyzerPlugin = require("webpack-bundle-analyzer")
  .BundleAnalyzerPlugin;
 
if (WATCH_ANALYZER) {
  plugins.push(new BundleAnalyzerPlugin());
}

就会生成一个可视化的体积页面，进行分析优化，将大包进行分包，不常更新的包进行 CDN 引入，或者打成 DLL 包

• webpack-bundle-analyzer