Yet Another EventTarget Implementation.
The library exposes both the EventTarget interface and the Event interface.
$ npm install yaeti --savevar yaeti = require('yaeti');
// Custom class we want to make an EventTarget.
function Foo() {
// Call EventTarget constructor
yaeti.EventTarget.call(this);
}
// Inherit EventTarget prototype
Foo.prototype = Object.create(yaeti.EventTarget.prototype);
Foo.prototype.constructor = Foo;
// Create an instance.
var foo = new Foo();
function listener1() {
console.log('listener1');
}
function listener2() {
console.log('listener2');
}
foo.addEventListener('bar', listener1);
foo.addEventListener('bar', listener2);
foo.removeEventListener('bar', listener1);
var event = new yaeti.Event('bar');
foo.dispatchEvent(event);
// Output:
// => "listener2"Implementation of the EventTarget interface.
function Foo() {
yaeti.EventTarget.call(this);
}
Foo.prototype = Object.create(yaeti.EventTarget.prototype);
Foo.prototype.constructor = Foo;class Foo extends EventTarget () {
constructor () {
super();
}
}The interface implements the addEventListener, removeEventListener and dispatchEvent methods as defined by the W3C.
Returns an object whose keys are configured event types (String) and whose values are an array of listeners (functions) for those event types.
Implementation of the Event interface.
NOTE: Just useful in Node (the browser already exposes the native Event interface).
var event = new yaeti.Event('bar');