Created
September 27, 2012 18:25
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A shim for older versions of jQuery which don't have the `on` method defined.
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| (function( $ ) { | |
| 'use strict'; | |
| if ( !$.fn.on && $.fn.live && $.fn.bind ) { | |
| $.fn.on = function() { | |
| var args = createObjectFromArgs( arguments ); | |
| if ( args.selector ) { | |
| this.find( args.selector ).live( args.events, args.data, args.handler ); | |
| } else { | |
| this.bind( args.events, args.data, args.handler ); | |
| } | |
| // support chaining | |
| return this; | |
| }; | |
| } | |
| function createObjectFromArgs( args ) { | |
| var o = {}, | |
| argumentNames = getArrayOfArgumentNames( args ); | |
| $.each( argumentNames, function( index, argumentName ) { | |
| o[ argumentName ] = args[ index ]; | |
| } ); | |
| return o; | |
| } | |
| function getArrayOfArgumentNames( args ) { | |
| if ( args.length === 2 ) { | |
| return [ 'events', 'handler' ]; | |
| } | |
| if ( args.length === 3 && typeof args[ 1 ] === 'string' ) { | |
| return [ 'events', 'selector', 'handler' ]; | |
| } | |
| if ( args.length === 3 && typeof args[ 1 ] !== 'string' ) { | |
| return [ 'events', 'data', 'handler' ]; | |
| } | |
| if ( args.length === 4 ) { | |
| return [ 'events', 'selector', 'data', 'handler' ]; | |
| } | |
| throw new Error( 'could not determine the order of arguments to jQuery.fn.on' ); | |
| } | |
| }( jQuery )); |
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Reinventing the wheel :(
https://github.com/MoonScript/jquery-on-off-shim/blob/master/jquery.on.off.js