webpack.config.js

const BrowserSyncPlugin = require("browser-sync-webpack-plugin");
const ExtractTextPlugin = require("extract-text-webpack-plugin");
const HtmlWebpackPlugin = require("html-webpack-plugin");
const path = require("path");

module.exports = {
  mode: "development",
  entry: "./src/index.js",
  output: {
    path: __dirname + "/dist/",
    filename: "js/main.bundle.js",
    publicPath: "/"
  },
  resolve: {
    alias: {
      store: "./src/store/"
    }
  },
  module: {
    rules: [
      // JavaScript/JSX Files
      {
        test: /\.js$/,
        exclude: /node_modules/,
        use: {
          loader: "babel-loader",
          options: {
            presets: ["@babel/preset-env"]
          }
        }
      },
      // CSS Files
      {
        test: /\.css$/,
        use: ["style-loader", "css-loader"]
      },
      {
        test: /\.scss$/,
        use: ExtractTextPlugin.extract({
          fallback: "style-loader",
          use: "css-loader!sass-loader"
        })
      },
      {
        test: /\.json$/,
        loader: "json-loader"
      },

      {
        test: /\.(png|jpg|gif|svg)$/,
        use: [
          {
            loader: "file-loader",
            options: {
              outputPath: "img"
            }
          }
        ]
      }
    ]
  },
  plugins: [
    new ExtractTextPlugin("css/style.css"),
    new BrowserSyncPlugin({
      host: "localhost",
      port: 3000,
      server: { baseDir: ["dist"] },
      files: ["./dist/*", "**/*.html"]
    }),
    new HtmlWebpackPlugin({
      title: "My App",
      template: "public/index.html",
      filename: "index.html"
    })
  ],
  watch: true,
  devtool: "source-map"
};