$EventTarget.js

$EventTarget.js is a mixin to provide event target functionality to any object.

When $EVentTarget is used on an object, all methods are added to the object's prototype.

Install

npm install oo-eventtarget

Usage

``javascript
var $EventTarget = require("oo-eventtarget");

var Product = function(name, price) {
$EventTarget(this); // add mixin to the product

this.name = name;
this.price = price;
};

Product.prototype.buy = function(quantity) {
// dispatch a "buy" event
this.dispatchEvent("buy", { quantity: quantity });
};

// listen to a product
var product = new Product("Millenium Falcon", 120);
product.addEventListener("buy", function(event) {
console.log(event.type, event.data.quantity, event.target.name + "s");
});
product.buy(2); // logs "buy 2 Millenium Falcons"
``

Interface

$3

Adds a new listener to an object

- name: the name of the event
- callback(event): the function to call when the event is triggered.

$3

Removes a listener from an object

- name: the name of the event
- callback(event): the function to remove

$3

- name: the name of the event to dispatch
- data: the data to pass to the event (optional)

$3

- type: the type of the event
- target: the object that dispatched the event
- data: the data passed with the event