tower-emitter

Event emitter

Tower Emitter

Event emitter component (started from component/emitter).

node.js:

$ npm install tower-emitter

browser:

$ component install tower/emitter

The Emitter may also be used as a mixin. For example a "plain" object may become an emitter, or you may extend an existing prototype.

As an Emitter instance:

var Emitter = require('emitter');
var emitter = new Emitter;
emitter.emit('something');

As a mixin:

var Emitter = require('emitter');
var user = { name: 'tobi' };
Emitter(user);
 
user.emit('im a user');

As a prototype mixin:

var Emitter = require('emitter');
Emitter(User.prototype);

Register an event handler fn.

Register a single-shot event handler fn, removed immediately after it is invoked the first time.

Remove event handler fn, or pass only the event name to remove all handlers for event.

Emit an event with variable option args.

Return an array of callbacks, or an empty array.

Check if this emitter has event handlers.

  • https://github.com/component/clone/blob/master/index.js

MIT