webpack.config.js

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const { CleanWebpackPlugin } = require('clean-webpack-plugin');

module.exports = {
  entry: { app: './src/index.js' },
  module: {
    rules: [
      {
        test: /\.tsx?$/,
        use: 'ts-loader',
        exclude: /node_modules/,
      },
      {
        test: /\.less$/,
        use: [
          {
            loader: 'style-loader', // creates style nodes from JS strings
          },
          {
            loader: 'css-loader', // translates CSS into CommonJS
          },
          {
            loader: 'less-loader', // compiles Less to CSS
          },
        ],
        exclude: /node_modules/,
      },
    ],
  },
  resolve: {
    extensions: ['.tsx', '.ts', '.js'],
  },
  plugins: [
    new CleanWebpackPlugin(),
    new HtmlWebpackPlugin({
      title: 'typescript',
      template: './src/index.html',
    }),
  ],
  devtool: 'inline-source-map',
  devServer: {
    contentBase: './dist',
  },
  output: {
    filename: '[name].bundle.js',
    path: path.resolve(__dirname, 'dist'),
  },
};