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webpack基础_html/css_WEB-ITnose

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Jun 21, 2016 am 08:55 AM

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安装

1.全局:

npm install -g webpack

2.项目:

npm install webpack --save-dev

3. 添加 content.js

module.exports = 'It workd from content.js'

4. 添加入口文件 entry.js

console.log(require('./content.js'))

5. 编译文件打包

webpack ./entry.js bundle.js

6. index.html引入 bundle.js

<!DOCTYPE html><html lang="en"><head>    <meta charset="UTF-8"></head><body><script src="bundle.js"></script></body></html>

7. 查看结果

输出

It workd from content.js

使用Loader加载css

webpack默认只支持js模块, 要打包css文件需要使用 css-loader处理css文件, style-loader应用样式

npm install css-loader style-loader

1 新建 style.css

body {    background-color: yellow;}

2 入口文件引入 style.css

console.log(require('./content.js'))require('!style!css!./style.css')

3 重新编译, 打开html文件, 样式已经加载

绑定Loader

require('!style!css!./style.css')每次都写很长的加载器前缀很麻烦, 可以在编译命令指定加载器绑定到文件后缀名

webpack ./entry.js bundle.js --module-bind "css=style!css"

此时 entry.js可以简化

require('./style.css')

配置文件

将配置信息添加到 webpack.config.js配置文件后, 每次只需要执行 webpack即可完成打包任务

module.exports = {    entry: './entry.js',    output: {}}

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