Home Web Front-end Bootstrap Tutorial What is bootstrap.js used for?

What is bootstrap.js used for?

Nov 24, 2020 am 11:03 AM
bootstrap

bootstrap.js是bootstrap的所有js指令的集合,其作用就是供开发的时候进行调试用,其使用方法是找到dist文件夹里面的css和JS文件,将带有min的拷贝到你项目中对应的css和JS文件夹里面即可。

What is bootstrap.js used for?

推荐:《bootstrap教程

bootstrap.js的作用

bootstrap.js 这个是bootstrap的灵魂所在,是bootstrap的所有js指令的集合,你看到bootstrap里面所有的js效果,都是由这个文件控制的,这个文件也是一个未经压缩的版本,供开发的时候进行调试用

获取bootstrap.js文件

去bootstrap官方网站上下载源码,也可以使用相关的CND来创建,具体方法是:下载bootstrap,找到dist文件夹里面的css和JS文件,将带有min的拷贝到你项目中对应的css和JS文件夹里面。

What is bootstrap.js used for?

在前端页面head标签里面引入css文件:

<link rel="stylesheet" href="/css/bootstrap.min.css" >
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在页面标签的前面添加引入JS代码,注意jQuery、popper、和bootstrap这三个js的顺序不能变,必须首先引入jQuery,其次是popper,最后才是bootstrap,因为他们之间有相互依赖的关系,改变了顺序会导致代码失效:

<script src="/js/jquery-3.4.1.slim.min.js"></script>
<script src="/js/popper.min.js"></script>
<script src="/js/bootstrap.min.js"></script>
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What is bootstrap.js used for?

带有min的文件是经过压缩后的文件,体积会比较小,加载速度更快,比如bootstrap.min.js就是经过压缩后的,而不带min的比如bootstrap.js就是没有压缩处理过,适合于需要修改其中的代码使用,差别就是压缩与否的关系。

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