1. 安装webpack
创建项目目录，初始化并安装webpack相关安装包
mkdir webpack-demo
cd webpack-demo
npm init -y
npm install webpack webpack-cli --save-dev
创建相关文件
src/index.js
import _ from 'lodash';
function component() {
const element = document.createElement('div');
// Lodash, currently included via a script, is required for this line to work
element.innerHTML = _.join(['Hello', 'webpack'], ' ');
return element;
}
document.body.appendChild(component());
dist/index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Getting Started</title>
</head>
<body>
<script src="main.js"></script>
</body>
</html>
2. 配置webpack
webpack.config.js
const path = require('path');
module.exports = {
entry: './src/index.js',
output: {
filename: "main.js",
path: path.resolve(__dirname, 'dist'),
},
};
package.json
{
"name": "webpack-demo",
"version": "1.0.0",
"description": "",
"private": true,
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1",
"build": "webpack"
},
"keywords": [],
"author": "",
"license": "ISC",
"devDependencies": {
"webpack": "^5.4.0",
"webpack-cli": "^4.2.0"
},
"dependencies": {
"lodash": "^4.17.20"
}
}
运行build命令进行打包编译
npm run build