webpack.config.dev.js

/* eslint-disable @typescript-eslint/no-var-requires */
const path = require('path');
const ForkTsCheckerWebpackPlugin = require('fork-ts-checker-webpack-plugin');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CopyPlugin = require('copy-webpack-plugin');

export default {
  mode: 'development',
  devtool: 'inline-source-map',
  entry: './src/index.tsx',
  output: {
    path: path.resolve(__dirname, 'dist'),
    publicPath: '/',
    filename: 'bundle.js',
  },
  plugins: [
    // Create HTML file that includes reference to bundled JS.
    new HtmlWebpackPlugin({
      template: 'src/index.html',
    }),
    new CopyPlugin({
      patterns: [{ from: 'src/img', to: 'images' }],
    }),
    new ForkTsCheckerWebpackPlugin({
      typescript: {
        diagnosticOptions: {
          semantic: true,
          syntactic: true,
        },
      },
    })
  ],
  module: {
    rules: [
      {
        test: /\.tsx?$/,
        use: 'ts-loader',
        exclude: /node_modules/,
      },
      { test: /\.(js|jsx)$/, exclude: /node_modules/, use: ['babel-loader'] },
      { test: /\.css$/, use: ['style-loader', 'css-loader', 'postcss-loader'] },
    ],
  },
  resolve: {
    extensions: ['.tsx', '.ts', '.js', '.jsx'],
  },
};