2019-09-20 测试有效
以yarn为例：
- yarn init -y
- yarn add webpack webpack-cli webpack-dev-server -D
- yarn add css-loader style-loader sass-loader -D
- yarn add file-loader html-loader -D
- yarn add html-webpack-plugin clean-webpack-plugin -D
- yarn add node-sass -D
需要安装的包
模块:
- webpack
- webpack-cli
- webpack-dev-server
- node-sass
loader:
- style-loader 用作fallback
- css-loader
- sass-loader
- file-loader 解决js、css引入图片问题
- html-loader 解决html引入图片问题
plugins:
- html-webpack-plugin 将html也打包
- clean-webpack-plugin
webpack.config.js
const path = require('path')
const webpack = require('webpack')
const HtmlWebpackPlugin = require('html-webpack-plugin')
const {CleanWebpackPlugin} = require('clean-webpack-plugin')
module.exports = {
mode: 'development',
entry: './src/index.js',
output: {
filename: '[hash:4]-bundle.js',
path: path.join(__dirname, 'dist')
},
module: {
rules: [
{
test: /\.scss$/,
use: ['style-loader', 'css-loader', 'sass-loader']
},
{
test: /\.(jpg|png|gif|svg|webp)$/,
use: ['file-loader']
},
{
test: /\.(html|ejs)$/,
use: ['html-loader']
}
]
},
devServer: {
contentBase: path.join(__dirname, 'dist'),
port: 3000,
historyApiFallback: true,
overlay: true,
hot: true
},
devtool: 'inline-source-map',
plugins: [
new CleanWebpackPlugin(),
new HtmlWebpackPlugin({
template: path.join(__dirname, 'src', 'main.html')
})
]
}
package.json
在package.json添加以下代码：
"scripts": {
"build": "webpack",
"build:prod": "webpack --production",
"start": "webpack-dev-server"
}
index.js
在入口文件index.js中import来引入样式、JS文件：
import './scss/main.scss'
import random from './js/random'
总结
本文内容是webpack目前版本（v4.40.2）下可用的、初级的配置，可应对简单的需求，另外也实现了样式的热加载。
