angular-class

An Angular service for creating classes with inheritance. Exposes the Class service.

API

Class

The Class service.

Class.extend(classDefenition)

Defines a new Class.

classDefenition.init

The contructor method

classDefinition.*

Other class methods

Inside any class method

this

The instance.

this._super

The current method on the first ancestor which has this method.

this.*

Any class method or property.

Example usage

The functionality of the Class service is best explained by some examples.

//Creates the 'MyModels' module, which requires the 'Class' module
angular.module('MyModels', ['Class'])
	//The Animal ModelClass, uses the 'Class' service
	.factory('Animal', function(Class){
		return function(){
		 	var Animal = Class.extend({
				init: function(){
					this.isAlive = true;
					this.age = 0;
					this.color = null;
				},
				canWalk: function(){
					return this.isAlive;
				},
				canFly: function(){
					return this.isAlive;
				},
				passYear: function(){
					this.age++;
				}
			});

			return Animal;
		}
	})
	//The Hamster ModelClass, uses the 'Animal' ModelClass service
	.factory('Hamster', function(Animal){
		var Hamster = Animal.extend({
			init: function(){
				this._super();
				this.color = 'brown';
			},
			canFly: function(){
				return false;
			},
			passYear: function(){
				this._super();
				if(this.age > 2){
					this.isAlive = false;
				}
			}
		});

		return Hamster;
	});

// A controller, which uses both the ModelClasses
myApp.controller('MyController', function(Animal, Hamster){
	var tweety = new Animal();
	tweety.passYear();
	tweety.passYear();
	tweety.passYear();
	//tweety instanceof Class === true
	//tweety instanceof Animal === true
	//tweety.canFly() === true
	//tweety.isAlive === true

	var knaagie = new Hamster();
	knaagie.passYear();
	knaagie.passYear();
	//knaagie.isAlive === true
	knaagie.passYear();
	//knaagie.isAlive === false
	//knaagie instanceof Class === true
    //knaagie instanceof Animal === true
    //knaagie instanceof Hamster === true
    //knaagie.canFly() === false
});

Installation

1. bower install angular-class --save or npm install angular-class --save
2. Include reference to angular-class.min.js
3. Add the Class module as dependency.

Running the tests

1. Get the source code.
2. npm install
3. bower install
4. gulp test

Credits

• Original author: John Resig. See the original blog post.
• This Angular wrapper package: Mark Lagendijk