做什么(function($){...})(jQuery);做/意思是? [英] What does (function( $ ){...})( jQuery ); do/mean?

问题描述

对于jquery的可重用插件，我有点陌生.我已经多次浏览过此代码，无法确切知道发生了什么.

I am a bit new to reusable plugins for jquery. I have ran across this code several times and can't figure out exactly what is going on.

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

有人可以启发我吗?

推荐答案

它允许作者在插件中使用$函数，而无需将其暴露于全局范围内-只是使插件本身之外的内容更加简洁.

It allows the author to use the $ function within the plugin without exposing it to the global scope - just keeps things a bit cleaner outside of the plugin itself.

我认为这是开发jQuery插件的最佳做法-确保我在文档中的某处看到了它！

I believe this is best practice for developing jQuery plugins - sure I saw it mentioned in the docs somewhere!

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