If you have ever dealt with events in JavaScript then you know that it can often be a cumbersome task. The Mootools library makes it dead simple to add or remove events to any given element. The problem I discovered when working with Mootools and events was checking to see whether a given element has an event. Natively Mootools does not come with a prepackaged method to check elements for the existance of any event. I use the following snippet of code to extend the Mootools library to have a hasEvent method.
1 2 3 4 5 6 7 8 9 10 | Native.implement([Element, Window, Document], {
hasEvent: function(type) {
var events = this.retrieve('events', {});
if (events && events[type]) { return true; }
else { return false; }
}
});
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