webpack.dev.js

const merge = require('webpack-merge');
const common = require('./webpack.common.js');
const path = require('path');

module.exports = merge(common, {
  devtool: 'inline-source-map',
  module: {
    rules: [
      {
        test: /\.(js|mjs|jsx|ts|tsx)$/,
        loader: 'babel-loader',
        exclude: /node_modules/,
      },
      {
        test: /\.css$/i,
        use: ['style-loader', 'css-loader'],
      },
      {
        test: /\.sass$/,
        use: [
          {
            loader: 'style-loader',
          },
          {
            loader: 'css-loader',
          },
          {
            loader: 'postcss-loader',
          },
          {
            loader: 'sass-loader?sourceMap',
          },
        ],
        exclude: [/node_modules/, /public/],
      },
      {
        test: /\.svg$/,
        use: ['@svgr/webpack', 'file-loader'],
      },
      {
        test: /\.scss$/,
        use: [
          {
            loader: 'style-loader',
          },
          {
            loader: 'css-loader',
          },
          {
            loader: 'postcss-loader',
          },
          {
            loader: 'sass-loader?sourceMap',
          },
        ],
        exclude: [/node_modules/, /public/],
      },
      {
        test: /\.css$/,
        use: [
          {
            loader: 'style-loader',
          },
          {
            loader: 'css-loader',
          },
          {
            loader: 'postcss-loader',
          },
        ],
        exclude: [/node_modules/, /public/],
      },
      {
        test: /\.(png|jpe?g|gif)$/i,
        use: [
          {
            loader: 'file-loader',
          },
        ],
      },
      {
        test: /\.(woff(2)?|ttf|eot)(\?v=\d+\.\d+\.\d+)?$/,
        use: [
          {
            loader: 'file-loader',
            options: {
              name: '[name].[ext]',
              outputPath: 'fonts/',
            },
          },
        ],
      },
    ],
  },
});