本文介绍了html preload和prefetch有什么区别?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
Preload和prefetch都用于预先请求资源，以便以后可以快速加载资源.看来我可以互换两者
Preload and prefetch are both used to request resources in advance so that later resource loading can be quick. It seems that I can interchange the two
< link rel ="preload" href ="foo.js" as ="script">
< link rel ="prefetch" href ="foo.js">
没有任何区别.
它们有什么区别?
推荐答案
Addy Osmani写道详细介绍此内容的文章，但简短的版本是:
Addy Osmani wrote an article that goes into the details of this, but the short version is:
Prefetch向浏览器提示可能需要资源，但是代表们决定是否以及何时加载它是一个好主意浏览器.
Prefetch is a hint to the browser that a resource might be needed, but delegates deciding whether and when loading it is a good idea or not to the browser.
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