关于javascript:webpack基本配置二单页应用

webpack.config.js

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

module.exports = {
    entry: './src/index.js',
    output: {filename: '[name].[contenthash].js',
        path: path.resolve(__dirname, 'dist')
    },
    //use inline-source-map for development
    devtool: 'inline-sorce-map',
    //use source-map for production
    //devtool: 'source-map',
    devServer: {contentBase: './dist'},
    module:{
        rules: [
            {
                test: /\.js$/,
                loader: 'babel-loader',
                include: [path.resolve(__dirname, 'src')],
                exclude: [path.resolve(__dirname, 'node_modules')]
            }
        ]
    },
    plugins:[new CleanWebpackPlugin(),
        new BundleAnalyzerPlugin({
            openAnalyzer: false,
            analyzerMode: 'static',
            reportFilename: 'bundle-analyzer-report.html'
        }),
        new HtmlWebpackPlugin({
            template: './src/index.html',
            filename: 'index.html'
        }),
        new webpack.HashedModuleIdsPlugin()],
    optimization: {
        runtimeChunk: {"name": "manifest"},
        splitChunks: {
            chunks: 'all',
            cacheGroups: {
                common: {
                    minChunks: 2,
                    name: 'commons',
                    chunks: 'async',
                    priority: 10,
                    reuseExistingChunk: true,
                    enforce: true
                }
            }
        }
    }
}

.babelrc 配置 

{
    "presets": [
        [
            "@babel/preset-env",
            {"modules": false}
        ]
    ],
    "plugins": ["@babel/plugin-syntax-dynamic-import"]
}