You'll find it everywhere! the first is a closure, it allows 'some code' to have real local variables the second is a closure with the added benefit that $ can be used for jQuery. It's used in plugins just to make sure $ is really jQuery's $ and not the $ from another library.
there are lots of twists on this concept! it's very valuable for scoping local variables. Without it a var is only local to the function that declares it. Hope that helps! On 5/17/07, Shuai Yang <[EMAIL PROTECTED]> wrote:
I found Jörn Zaefferer's "jQuery plugin authoring guide" at http://bassistance.de/2006/12/27/jquery-plugin-authoring-guide/, there i found javascript syntax like this: ======================== (function() { // some code here })(); ======================== (function($) { // some code here })(jQuery); ======================== it really works,but i donno what exactly this syntax means,anyone can explain it? great thanks!
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