Underscore.js Mixin: Move - takes array and moves item at index and moves to another index; great for use with jQuery.sortable()

underscore.move.js

/*
    _.move - takes array and moves item at index and moves to another index; great for use with jQuery.sortable()
*/
_.mixin({

    move: function (array, fromIndex, toIndex) {
	    array.splice(toIndex, 0, array.splice(fromIndex, 1)[0] );
	    return array;
    } 
    
});