在.js文件中使用外部javascript文件 [英] Using external javascript files in a .js file

问题描述

我想在另一个javascript文件中使用外部javascript文件。例如，我可以将所有全局变量存储在globals.js文件中，然后从网站逻辑logic.js调用。然后在index.html中，我会插入标记。如何在logic.js中使用globals.js？

I would like to use an external javascript file in another javascript file. For example, I could store all my global variables in a globals.js file and then call then from the website logic logic.js. Then in the index.html, i would insert the tag. How do I use the globals.js inside the logic.js?

推荐答案

Javascript没有任何隐含的包含此其他文件机制，如css的@include。您只需要在标记中的逻辑文件之前列出您的全局文件：

Javascript doesn't have any implicit "include this other file" mechanisms, like css's @include. You just have to list your globals file before the logic file in the tags:

 <script type="text/javascript" src="globals.js" />
 <script type="text/javascript" src="logic.js" />

如果在逻辑文件中的任何内容启动之前保证全局变量可用，则可以做得很慢轮询循环，以便在调用init（）或任何函数之前查看某个特定变量是否可用。

If guaranteeing that the globals are available before anything in the logic file fires up, you can do a slow polling loop to see if some particular variable is available before calling an init() or whatever function.

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