terser-webpack-plugin VS babel-plugin-lodash

const path = require('path'); const MiniCssExtractPlugin = require("mini-css-extract-plugin"); const CssMinimizerPlugin = require("css-minimizer-webpack-plugin"); const HtmlWebpackPlugin = require('html-webpack-plugin'); const { CleanWebpackPlugin } = require('clean-webpack-plugin'); const TerserPlugin = require("terser-webpack-plugin"); module.exports = { // watch: true, mode: "production", entry: "./src/index.tsx", output: { filename: 'main.js', path: path.resolve(__dirname, 'build') }, optimization: { chunkIds: 'named', minimizer: [ new TerserPlugin({ parallel: true, terserOptions: { // https://github.com/webpack-contrib/terser-webpack-plugin#terseroptions }, }), new CssMinimizerPlugin(), ], }, plugins: [ new MiniCssExtractPlugin(), new HtmlWebpackPlugin({ template: path.resolve(__dirname, './public/index.html'), // template file filename: 'index.html', // output file }), new CleanWebpackPlugin(), ], module: { rules: [ { test: /\.(js|jsx)$/, exclude: /(node_modules|bower_components)/, use: { loader: 'babel-loader', options: { presets: ['@babel/preset-env', "@babel/preset-react"] } } }, { test: /\.css$/i, use: [ MiniCssExtractPlugin.loader, { loader: 'css-loader', options: { importLoaders: 1 } }, { loader: 'postcss-loader', options: { postcssOptions: { plugins: [ [ 'autoprefixer', { overrideBrowserslist: ['last 3 versions', 'ie >9'] }, ], ], }, }, }, ], }, { test: /\.scss$/i, use: [ MiniCssExtractPlugin.loader, { loader: 'css-loader', options: { importLoaders: 1 } }, { loader: "postcss-loader", options: { postcssOptions: { plugins: [ [ "autoprefixer", { overrideBrowserslist: ['last 3 versions', 'ie >9'] }, ], ], }, }, }, 'sass-loader' ], }, { test: /\.(svg|eot|woff|woff2|ttf)$/, use: ['file-loader'] }, { test: /\.tsx?$/, loader: "ts-loader", exclude: /node_modules/, options: { allowTsInNodeModules: true } } ] }, resolve: { extensions: ["*",".ts", ".tsx", ".js", "jsx"] }, }

There are lots of options available with this plugin which you can check here.

Make sure Webpack is in production mode on release! Webpack applies a number of optimizations to your bundle, including minification with TerserWebpackPlugin if you’re using Webpack v4 or above. If not, you’ll have to install and add it manually. Other optimizations include omitting development-only code and using optimized assets.

Specifically quote_mode in terser-webpack-plugin

terser-webpack-plugin - Optimize and minimize JavaScript

Alternatively, there is a Babel plugin that can do this for you. There is also a webpack plugin that will further optimize things.

Similar to babel-plugin-import, the babel-plugin-lodash plugin cherry picks the code we need to import from lodash. The parsed size of the entire lodash package is ~600KB, so we definitely don’t want everything.