Element Collection Manipulation Shortcut Using MooTools 1.2

One mistake I've been making with MooTools is that I've been looping through element collections (retrieved by using $$ function) to add events and manipulate elements. When you've got an element collection, there's no need to loop through them. Why? Because you can simply add modification code to the element collection and MooTools does the looping internally. Let me illustrate my point below.

Let me use my mouseover accordion example code to illustrate my point.

MooTools Looping Example (Bad/Long)

$$('.toggler').each(function(el) {
	el.addEvent('mouseenter',function(e) {
		el.fireEvent('click');
	});
});

Above, we're looping through each item to add the event. This works fine but it's extra code.

MooTools Collection Example (Good/Short)

$$('.toggler').addEvent('mouseenter', function() { this.fireEvent('click'); });

In this snippet, we skip the looping process all together and simply apply the addEvent() code to the collection. We also use the this keyword as an element reference instead of the individual element object. Of course, MooTools loops through the element collection internally but the above example shows you how to achieve the same effect using much less code.