有时我得到(未捕获的ReferenceError:未定义jQuery) [英] Sometimes I get (Uncaught ReferenceError: jQuery is not defined)

问题描述

有时我会收到以下错误消息

Sometime I get the following error

Uncaught ReferenceError: jQuery is not defined

但随后没有进行任何更改，我将不会收到错误消息，然后过一会儿该错误将再次开始显示.

but then without changing anything, I will not get the error, then after a while the error will start showing up again.

这是服务器问题，如何提供文件?还是我的代码中可以更改某些内容以避免这种情况发生?

Is this a server issue, of how the files are getting served? Or is there something in my code I can change to avoid this?

推荐答案

当浏览器必须重新加载该文件时，清除缓存后可能会出现该错误.您可能试图在加载jQuery之前使用jQuery运算符$.确保先加载jQuery，然后再使用它.

You probably get that error after clearing your cache when your browser has to reload that file. You might be trying to use the jQuery operator $ before jQuery gets loaded. Make sure jQuery is loaded before anything that uses it.

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