terser-webpack-plugin VS webpack-bundle-analyzer

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

I used to use webpack-bundle-analyzer but we have switched the builder to browser-esbuild now.

First start by running a webpack bundle analysis to see what exactly is bundled. You might be surprised about things being included that you didn't expect which can help with where to look.

Firstly I recommend taking a look at the structure of the webpack output with something like webpack-bundle-analyzer for any obvious over bundling issues.

See: https://github.com/webpack-contrib/webpack-bundle-analyzer

Webpack Bundle Analyzer

npm run analyse - analyse bundle with webpack-bundle-analyzer

This was my question as well. The article does answer the question, but off the bat I'd assumed the author was talking about output/dist. The web treemap cli is a great tip. If you are using webpack, webpack-bundle-analyzer is a helpful tool for quickly finding bloated packages. It's definitely helped me cut down my build times: https://github.com/webpack-contrib/webpack-bundle-analyzer

Here are a few tipps where you could save some time: 1)check angular.json (configurations -> "your ci config") - look for buildOptimizer / optimization 2)If you run npm ci during your pipeline it might make sense to create the node modules folder beforehand, it seems to save time (https://github.com/npm/cli/issues/2011) 3)Use ng build --stats-json to analyze your build 4)Use https://github.com/webpack-contrib/webpack-bundle-analyzer (also works together with 3. ) 5)Check your package.json for unused dependencies 6)Check your imports, import only what is needed Hope this helps

- `npm run start` - Start the app - `npm run lint` - Lint the project - `npm run test` - Run unit tests - `npm run build` - Build the project - `npm run build:prod` - Build the project in production mode - `npm run build:prod:stats` - Build the project in product mode with stats - `npm run analyse` - Analyse bundle with [webpack-bundle-analyzer](https://github.com/webpack-contrib/webpack-bundle-analyzer) - `npm run compodoc` - Generate [compodoc](https://github.com/compodoc/compodoc) documentation - `npm run version` - Generate changelog - `npm run prettier` - Format the whole project - `npm run audit` - Audit this application using Sonatype OSS Index