webpack配置resolve屬性

resolve屬性配置

let path = require('path');
let HtmlWebpackPlugin = require('html-webpack-plugin');
let {CleanWebpackPlugin} = require('clean-webpack-plugin');
// 以前的用法
// let CleanWebpackPlugin = require('clean-webpack-plugin');
let CopyWebpackPlugin = require('copy-webpack-plugin');
let webpack = require('webpack');

module.exports = {
    // 多入口
    mode: 'development',
    entry: {
        home: './src/index.js',
    },
    resolve: {  // 解析第三方包 common
        modules: [path.resolve('node_modules')], // 只在node_module目錄下進行解析
        extensions: ['.js', '.css', '.json']    // 默認按照文件名後綴進行查找
        // mainFiles: []   // 入口文件的名字
        // mainFields: [   // 主入口的字段
        //     'style',
        //     'main',
        // ],
        // alias: {  // 別名
        //     bootstrap: 'bootstrap/dist/css/bootstrap.css'
        // }
    },
    module: {
        rules: [
            {
                test: /\.css$/,
                use: [
                    'style-loader',
                    'css-loader',
                ]
            },
            {
                test: /\.js$/,
                use: {
                    loader: 'babel-loader',
                    options: {
                        presets: ['@babel/preset-env']
                    }
                }
            }
        ]
    },
    devtool: 'cheap-module-eval-source-map',
    output: {
        // 這裏的 name代表 home， other
        filename: '[name].js',
        path: path.resolve(__dirname, 'dist')
    },
    plugins: [
        new HtmlWebpackPlugin({
            template: "./index.html",
            filename: "index.html",
            chunks: [
                "home",
            ],
        }),
    ]
};