webpack.common.js

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

module.exports = {
  entry: "./src/index.js",
  resolve: {
    extensions: [".js", ".jsx"]
  },
  module: {
    rules: [
      {
        exclude: /node_modules/,
        loader: "babel-loader",
        options: {
          presets: [
            "@babel/preset-react",
            {
              plugins: ["@babel/plugin-proposal-class-properties"]
            }
          ]
        }
      },
      {
        test: /\.css$/,
        use: ["style-loader", "css-loader"]
      },
      {
        test: /\.(ttf|eot|svg)$/,
        use: {
          loader: "file-loader",
          options: {
            name: "fonts/[hash].[ext]"
          }
        }
      },
      {
        test: /\.(woff|woff2)$/,
        use: {
          loader: "url-loader",
          options: {
            name: "fonts/[hash].[ext]",
            limit: 5000,
            mimetype: "application/font-woff"
          }
        }
      },
      {
        test: /\.html$/,
        loader: "html-loader"
      }
    ]
  },
  plugins: [
    new CleanWebpackPlugin(),
    new HtmlWebpackPlugin({
      template: "./src/index.html"
    })
  ]
};