这个jquery函数意味着什么？ [英] What does this jquery function mean?

问题描述

我试图了解js库的工作原理，更具体地说是 http：//toopay.github。 io / bootstrap-markdown / 。

I am trying to understand how a js library works, more specifically http://toopay.github.io/bootstrap-markdown/.

整个js文件包含在这个函数中：

The whole js file is wrapped in this function:

!function ($) {
}(window.jQuery);

这是做什么的，以及如何从库外再次调用它？

What does this do and how would I be able to call it again from outside the library?

推荐答案

它创建一个函数然后立即调用它。它之所以如此，所以它所做的所有变量都不是全局变量，因为它们将在函数内部。 ！只是为了避免在与其他脚本连接时造成问题并节省空间。

It creates a function then immediately calls it. The reason it does that is just so all the variables it makes won't be global, as they'll be inside the function instead. The ! is just to avoid causing problems when it's concatenated with other scripts and to save space.

您不能自己调用​​它，也不能自己调用​​。

You can't call it yourself, nor should you.

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