Webpack is a front-end tool to build JavaScript module scripts for browsers.
webpack编译JavaScript模块
Introduce
对比 Node.js 模块,webpack 模块能够以各种方式表达它们的依赖关系,几个例子如下:
- ES2015 import 语句
- CommonJS require() 语句
- AMD define 和 require 语句
- css/sass/less 文件中的 @import 语句。
- 样式(url(…))或 HTML 文件(
)中的图片链接(image url)
Some perception
webpack-dev-server
为你提供了一个简单的 web server,并且具有 live reloading(实时重新加载) 功能
How to install
npm install --save-dev webpack-dev-server
webpack.config.js often looks like…
const path = require('path');const HtmlWebpackPlugin = require('html-webpack-plugin');const CleanWebpackPlugin = require('clean-webpack-plugin');module.exports = {mode: 'development',entry: {app: './src/index.js',print: './src/print.js'},devtool: 'inline-source-map',devServer: {contentBase: './dist'},plugins: [new CleanWebpackPlugin(['dist']),new HtmlWebpackPlugin({title: 'Development'})],output: {filename: '[name].bundle.js',path: path.resolve(__dirname, 'dist')}};
Intially
keywords: entry file, web
- run the command below in project directoy
npm install webpack webpack-cli webpack-dev-server —save-dev
- configure
package.json, add “dev”: “webpack-dev-server —open” within script field. - configure
webpack.config.js```javascript module.exports = { entry: ‘./main.js’, output: { filename: ‘bundle.js’ } };
`main.js` is an **entry file**(which webpack follow to build `bundle.js`), write you own code```javascriptdocument.write('<h1>Hello World</h1>');
index.html
<html><body><script type="text/javascript" src="bundle.js"></script></body></html>
- run command “npm run dev”
so the localhost page is supposed to be opened automatially
Pack
- run npx webpack
dist directoy generated and bundle.js blew.
- Now modify the index.html ```html
```
- open index.html in Chrome, the result is showing.
Question
what’s the relationship between vue and webpack
