webpack.common.js

const HtmlWebpackPlugin = require("html-webpack-plugin");
const webpack = require("webpack");
const path = require("path");

module.exports = {
  entry: "./src/index.js",
  output: {
    path: path.resolve(__dirname, "dist"),
    filename: "bundle.js",
  },

  // module
  module: {
    rules: [
      {
        test: /\.html$/,
        use: ["html-loader"],
      },
      {
        test: /\.css$/,
        use: [
          {
            loader: "style-loader",
          },
          {
            loader: "css-loader",
          },
        ],
      },
      {
        test: /\.(png|jpg|jpeg|gif|svg)$/,
        use: [
          {
            loader: "file-loader",
            options: {
              name: "[name].[ext]",
              outputPath: "images/",
            },
          },
        ],
      },
    ],
  },

  // plugin
  plugins: [
    new HtmlWebpackPlugin({
      template: "./src/index.html",
      filename: "index.html",
    }),
    new webpack.LoaderOptionsPlugin(),
    new webpack.optimize.LimitChunkCountPlugin({
      maxChunks: 1,
    }),
    new webpack.optimize.MinChunkSizePlugin({
      minChunkSize: 1000,
    }),
  ],

  performance: {
    maxAssetSize: 350 * 1024,
    maxEntrypointSize: 350 * 1024,
  },
};