1️⃣ 包分析器 bundle analyzer

使用插件来分析包的大小根据分析来优化包

1️⃣ 安装

const WebpackBundleAnalyzer = require("webpack-bundle-analyzer").BundleAnalyzerPlugin;
module.exports = {
  mode: "production",
  plugins: [new WebpackBundleAnalyzer()]
};