webpack.config.js

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

module.exports = {
  entry: "./src/index.js",
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        use: ["babel-loader"]
      },
      {
        test: /\.sass$/,
        use: [
          "style-loader", // creates style nodes from JS strings
          "css-loader", // translates CSS into CommonJS
          "sass-loader" // compiles Sass to CSS, using Node Sass by default
        ]
      }
    ]
  },
  resolve: {
    extensions: ["*", ".js", ".jsx"]
  },
  output: {
    path: path.resolve(__dirname, "dist"),
    publicPath: "/",
    filename: "bundle.js"
  },
  devServer: {
    contentBase: "./dist",
    disableHostCheck: true
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: "./src/index.html",
      filename: "./index.html"
    })
  ]
};