webpack for .js and .scss

tools.txt

npm init -y
npm i -D @babel/cli @babel/core @babel/preset-env babel-loader css-loader html-webpack-plugin style-loader webpack webpack-cli webpack-dev-server core-js@3 regenerator-runtime

webpack.config.js

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

module.exports = {
  entry: {
    main: path.join(__dirname, "src/index.js")
  },
  output: {
    path: path.join(__dirname, "dist"),
    filename: "[name].bundle.js"
  },
  module: {
    rules: [
      {
        test: /\.js/,
        exclude: /(node_modules)/,
        use: ["babel-loader"]
      },
      {
        test: /\.css$/i,
        use: ["style-loader", "css-loader"]
      }
    ]
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: path.join(__dirname, "./src/index.html")
    })
  ],
  stats: "minimal",
  devtool: "source-map",
  mode: "development",
  devServer: {
    open: false,
    contentBase: "./dist",
    inline: true,
    port: 4000
  }
};
/*--------------------------------------------------------------------------------------------*/
/*webpack avec react*/

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

module.exports = {
  entry: path.resolve(__dirname, "src/index.js"),
  output: {
    path: path.resolve(__dirname, "dist"),
    filename: "[name].bundle.js"
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        exclude: /node_modules/,
        use: ["babel-loader"]
        },
        {
          test: /\.scss$/i,
          use: ["style-loader","css-loader","sass-loader"]
        }
    ]
    },
  plugins: [
    new HtmlWebpackPlugin({
      template: path.resolve(__dirname, "src/index.html")
    })
  ],
  devtool: "source-map",
  mode: "development",
  devServer: {
    contentBase: path.resolve(__dirname, "./dist"),
    inline: true,
    open: true,
    hot: true,
    port: 4000
  }
};

npm init -y
npm i -D @babel/cli @babel/core @babel/preset-env babel-loader css-loader html-webpack-plugin style-loader webpack webpack-cli webpack-dev-server core-js@3 regenerator-runtime