JavaScript events for custom objects.
[link:https://github.com/mrdoob/eventdispatcher.js Eventdispatcher on GitHub]
// Adding events to a custom object
var Car = function() {
this.start = function() {
this.dispatchEvent({ type: 'start', message: 'vroom vroom!' });
};
};
// Mixing the EventDispatcher.prototype with the custom object prototype
Object.assign(Car.prototype, EventDispatcher.prototype);
// Using events with the custom object
var car = new Car();
car.addEventListener('start', function(event) {
alert(event.message);
});
car.start();
Creates EventDispatcher object.
type - The type of event to listen to.
listener - The function that gets called when the event is fired.
Adds a listener to an event type.
type - The type of event to listen to.
listener - The function that gets called when the event is fired.
Checks if listener is added to an event type.
type - The type of the listener that gets removed.
listener - The listener function that gets removed.
Removes a listener from an event type.
event - The event that gets fired.
Fire an event type.
[sourceHint]