初始化webpack应用示例

sun_weitao2024-12-04 10:29

1、初始化npm

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mkdir webpack_test
cd webpack_test
npm init

2、安装webpack依赖

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npm install webpack webpack-cli -D

3、添加文件夹，入口文件

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mkdir src
touch index.js
touch add-content.js

文件夹结构

index.js

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import addContent from "./add-content";
document.write('My first Webpack app. <br/>')

addContent()

add-content.js

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export default function(){
    document.write('I\'m using npm scripts!')
}

4、安装webpack-dev-server依赖

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npm install webpack-dev-server -D

5、添加index.html

index.html

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>My First Webpack app.</title>
</head>
<body>
    <script src="./main.js"></script>
</body>
</html>

6、配置package.json启动脚本

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  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "build": "webpack",
    "dev":"webpack-dev-server"
  },

7、配置webpack.config.js

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const path = require('path')

module.exports = {
    entry: './src/index.js',
    output: {
        filename: './main.js',
    },
    mode: "development",
    devServer: {
        static:{
            directory:path.join(__dirname, 'dist'),
        }
    }
}

8、启动应用

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npm run dev