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I am writing an application at the moment that uses jquery. It fits in to an existing application that uses prototype so obviously I cant use the dollar sign straight away.
I have been using noconflict to get around this but couldnt I just wrap my whole script inside a closure passing in jquery as in:
(function( $ ){
})( jQuery );
This seems to work but I am wondering if there are any consequences to this?
583
The noConflict() method releases jQuery's control of the $ variable. This method can also be used to specify a new custom name for the jQuery variable. Tip: This method is useful when other JavaScript libraries use the $ for their functions.
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It's bed time here, but just for starters, (function($) { })(jQuery); wraps the code so that $ is jQuery inside that closure, even if $ means something else outside of it, usually as the result of $. noConflict() for example.
jQuery - noConflict() Many JavaScript libraries use $ as a function or variable name, just as jQuery does. In jQuery's case, $ is just an alias for jQuery, so all the functionality is available without using $. Run $. noConflict() method to give control of the $ variable back to whichever library first implemented it.
you can use both :
(function( $ ){
})( jQuery.noConflict() );
That should work fine, since your passing jQuery into your closure as the jQuery object itself.
The noConflict should still be specified though - otherwise the jQuery object could take control of the dollar sign. Calling noConflict passes the dollar sign back to anything that is already using it.
The documentation suggests this too:
$.noConflict();
jQuery(document).ready(function($) {
// Code that uses jQuery's $ can follow here.
});
// Code that uses other library's $ can follow here.
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