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Detailed explanation of examples of bootstrap method introduced by Webpack
Detailed explanation of examples of bootstrap method introduced by Webpack
本篇文章主要介绍了Webpack如何引入bootstrap的方法，小编觉得挺不错的，现在分享给大家，也给大家做个参考。一起跟随小编过来看看吧
【相关视频推荐：Bootstrap教程】
Bootstrap中是一种事实上的界面标准，标准到现在的网站大量的使用它。如果可以使用webpack引入的bootstrapcss，就可以一个npm install完成项目的依赖，而不必手工的添加到html内。
本来以为在入口文件内加一行就行：
import 'bootstrap/dist/css/bootstrapcss'
然后安装依赖：
npm i bootstrap url url-loader style-loader css-loader --save
实际上却不是想象的那么简单。因为css文件内还引用了很多类型的字体文件和矢量图文件。要引入它，必须同时提供css之外的类型的对应的loader：
//webpackconfigjs:
moduleexports = {
entry: {
'js'
},
output: {
filename: 'bundlejs'
},
module: {
loaders: [
{ test: /\css$/, loader: 'style-loader!css-loader' },
{ test: /\eot(\?v=\d+\\d+\\d+)?$/, loader: "file" },
{ test: /\(woff|woff2)$/, loader:"url?prefix=font/&limit=5000" },
{ test: /\ttf(\?v=\d+\\d+\\d+)?$/, loader: "url?limit=10000&mimetype=application/octet-stream" },
{ test: /\svg(\?v=\d+\\d+\\d+)?$/, loader: "url?limit=10000&mimetype=image/svg+xml" }
]
}
};我们在html文件内使用那么一点点的bootstrap：
// chtml <html> <body> <ul class="nav nav-pills"> <li role="presentation" class="active"><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Home</a></li> <li role="presentation"><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Profile</a></li> <li role="presentation"><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Messages</a></li> </ul> <script type="text/javascript" src="bundlejs"></script> </body> </html>
再次执行转译：
webpack
打开浏览器：
open chtml
看到bootstrap那熟悉而太熟悉的界面。
引入jquery
如果需要使用bootstrap的js插件的话，就必须首先引入jquery。引用jquery的一个方法是使用webpack插件。
首先安装jquery：
npm i jquery
其次使用插件装入jquery，方法是修改webpack的配置文件，加入：
plugins: [
new webpackProvidePlugin({
$: "jquery",
jQuery: "jquery"
})
]在入口文件内加入代码来做验证：
$("body")append("<p>hello world</p>")如果成功，说明jquery加载成功。这样你就可以在入口js文件内加载bootstrapjs了：
import 'bootstrap/dist/js/bootstrapjs'
排除错误
我确实在引入bootstrap的时候，遇到一个神奇的错误。在webpack转译时报错，css-loader，unknown word样子的错误。对webpackconfigjs文件加入一个include属性并指向到不存在的目录即可。
{
test: /\css$/,
include: [
pathresolve(dirname, "not_exist_path")
],
loader: "style!css"
}原始的issue在此：githubcom/webpack/cs 。我看看看到此答案时以为是个玩笑。
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