Why create an anonymous function with a ! before it?

Question

Possible Duplicate:
What does the exclamation mark do before the function?

What's the point of the ! in the snippet bellow?

!function ($) {

   // code

}(window.jQuery);

This syntax is used extensively in Twitter's bootstrap.js

Same question is answered [here](http://stackoverflow.com/questions/3755606/what-does-the-exclamation-mark-do-before-the-function) & [here](http://stackoverflow.com/questions/5422585/preceding-function-in-javascript/5422658#5422658). — viclim, Jun 25 '12 at 09:49

score 1 · Accepted Answer · answered Jun 25 '12 at 09:49

1

they are calling the function right after the declaration (with window.jQuery as a parameter)

another syntax is:

(function ($) {

   // code

})(window.jQuery);

some people care more about one character than readability

answered Jun 25 '12 at 09:49

Mathieu

1 Answers1