webpack.config.js

const path = require("path");
const ESLintPlugin = require("eslint-webpack-plugin");

module.exports = {
  entry: ["./src/components/index.js"],
  output: {
    path: path.resolve(__dirname, "build"),
    filename: "bundle.js",
    publicPath: "/",
  },
  resolve: {
    modules: [__dirname, "node_modules"],
    extensions: ["*", ".js", ".jsx", ".json"],
  },
  devtool: "source-map",
  module: {
    rules: [
      {
        test: /\.svg$/,
        exclude: /node_modules/,
        loader: "svg-react-loader",
      },
      {
        loader: "babel-loader",
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
      },
      {
        enforce: "pre",
        test: /\.(js|jsx)$/,
        loader: "source-map-loader",
      },
      {
        test: /\.css$/,
        use: [
          {
            loader: "style-loader",
          },
          {
            loader: "css-loader",
            options: {
              importLoaders: 2,
            },
          },
          {
            loader: "sass-loader",
          },
        ],
      },
    ],
  },
  plugins: [
    new ESLintPlugin({
      extensions: [/\.(js|jsx)$/],
      exclude: ["/node_modules/"],
      emitError: true,
      emitWarning: false,
    }),
  ],
};