Happens

Super simple and tiny javascript event system.

Instalation

# node
npm install happens # --save, --save-dev

# bower
bower install happens # --save, --save-dev

# meteor
meteor add arboleya:happens

API

• .on(event, handler) - listening event
• .once(event, handler) - listening event, once
• .off(event, handler) - unlistening event
• .emit(event, handler) - emitting event

Basic

var Happens = require('happens');

var test = happens();
test.on('init', function(letters){
  console.log('init', letters); // a, b, c
});
test.emit('init', ['a', 'b', 'c'])

With objects

var Happens = require('happens');

var obj = happens({
  play: function(){
    this.emit('play');
  }
});
obj.on('play', function(){ console.log('playing'); });
obj.play();

With Classes

var Happens = require('happens');

function MyClass() {
  Happens(this);
}

MyClass.prototype.play = function() {
  this.emit('play');
};

var tmp = new MyClass();
tmp.on('play', function(){ console.log('playing'); });
tmp.play();

Meteor

As Meteor doesn't use require, worths mentioning that the Happens constructor is directly available on the Client and Server.

License

The MIT License (MIT)

Copyright (c) 2013 Anderson Arboleya

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.