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preload-assets

v1.0.0

Published

预加载静态资源,包括 js 和 css。

Downloads

2

Readme

preload-assets.js

预加载静态资源,包括 js 和 css。

原理:使用 HTML5 prefetch 特性预加载资源,如果不支持 prefetch,则会创建一个隐藏的 iframe,在 iframe 中创建 script 标签加载 js,创建 link 标签加载 css。

安装

npm install preload-assets --save

用法

import preloadAssets from 'preload-assets'

var assets = [
  'https://cdn.bootcss.com/vue/2.5.9/vue.min.js',
  'https://cdn.bootcss.com/Swiper/4.0.6/css/swiper.min.css',
  'https://cdn.bootcss.com/Swiper/4.0.6/js/swiper.min.js'
]

var options = {
  delay: 0,  // 延迟预加载,单位 ms,避免影响到当前页面的加载效率
  ignoreError: false,  // 如果配置为 true,则会隐藏 iframe 方案加载时的 js 异常
  beforePreloadScript: 'window.CONFIG={};'  // iframe 方案加载时,提前定义的全局变量,可以避免业务代码报错
}

preloadAssets(assets, options)