webpack.config.js

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const MiniCssExtractPlugin = require("mini-css-extract-plugin");

module.exports = {
    entry: {
        canvas: './src/entry/testEntry.js',
        others: '/src/others/index.jsx',
    },
    output: {
        path: path.resolve(__dirname, 'dist'),
        publicPath: '',
        filename: '[name].bundle.js',
        clean: true,
    },
    resolve: {
        extensions: ['.js', '.jsx', '.css'],
    },
    module: {
        rules: [
            {
                test: /\.(js|jsx)$/,
                exclude: /(node_modules)/,
                use: {
                    loader: 'babel-loader',
                }
            },
            {
                test: /\.css$/i,
                use: [
                    MiniCssExtractPlugin.loader, 
                    "css-loader",
                ],
            },
            {
                test: /\.less$/,
                use: [
                    'style-loader',
                    'css-loader',
                    {
                        loader: 'less-loader',
                        options: {
                            lessOptions: {
                                modifyVars: {
                                    'primary-color': '#2E2E2E',
                                    'font-size': '2px'
                                },
                                javascriptEnabled: true,
                            },
                        },
                    },
                ]
            },
            {
                test: /\.(png|jp(e*)g|svg|gif)$/,
                use: [
                    {
                      loader: 'file-loader',
                      options: {
                        name: 'images/[hash]-[name].[ext]',
                      },
                    },
                ],
            }
        ]
    },
    plugins: [
        new HtmlWebpackPlugin({
          title: 'Demo',
          filename: 'index.html',
          template: path.resolve(__dirname, "src/index.html")
        }),
        new MiniCssExtractPlugin()
    ],
    devServer: {
        static: './dist',
        hot: true,
    },
    devtool: 'inline-source-map',
    mode: 'development',
};