webpack.common.js

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const { CleanWebpackPlugin } = require('clean-webpack-plugin');
const CopyPlugin = require('copy-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
module.exports = {
  entry: './src/index.ts',
  devtool: 'inline-source-map',
  module: {
    rules: [
      {
        test: /\.tsx?$/,
        use: 'ts-loader',
        exclude: /node_modules/
      },
      {
        test: /\.(s*)css$/,
        use: [
          MiniCssExtractPlugin.loader,
          'css-loader',
          'postcss-loader',
          'sass-loader'
        ],
        exclude: /node_modules/
      },
      {
        test: /\.(jpe?g|png|gif|svg)$/i,
        loader: 'file-loader'
      }
    ]
  },
  resolve: {
    extensions: ['.tsx', '.ts', '.js']
  },
  output: {
    filename: '[name].[hash].js',
    path: path.resolve(__dirname, 'dist')
  },
  optimization: {
    splitChunks: {
      cacheGroups: {
        styles: {
          name: 'styles',
          test: /\.css$/,
          chunks: 'all',
          enforce: true
        },
        vendors: {
          test: /[\\/]node_modules[\\/]/,
          priority: -10
        }
      }
    }
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: 'src/index.html',
      filename: 'index.html',
      chunksSortMode: 'auto',
      chunks: ['main']
    }),
    new CleanWebpackPlugin(),
    new CopyPlugin([
      {
        from: 'src/assets',
        to: 'assets'
      }
    ]),
    new MiniCssExtractPlugin({
      filename: '[name].[hash].css'
    })
  ]
};