webpack.config.js

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const { CleanWebpackPlugin } = require('clean-webpack-plugin');
const webpack = require('webpack');

module.exports = {
    mode: 'development', // zip in 'production'
    entry: {
      app: './src/js/index.js'
    },
    devtool: 'inline-source-map',
    devServer: {
        contentBase: './public',
        hot: true
    },
    module: {
        rules: [
            {
                test: /\.css$/,
                use: ['style-loader', 'css-loader']
            }
        ]
    },
    plugins: [
        new CleanWebpackPlugin(),
        new HtmlWebpackPlugin({
            title: '管理输出'
        }),
        new webpack.HotModuleReplacementPlugin()
    ],
    output: {
      filename: '[name].bundle.js',
      path: path.resolve(__dirname, 'public')
    }
  };