prototyper

Base object for using prototypal inheritance in javascript. Is has a strong dependence on ES5.

http://cromandini.github.io/prototyper/

Getting Started

Install the module with: npm install prototyper

'use strict';

var Prototyper = require('../lib/Prototyper');

var Person = Prototyper.extend('Person',
	// iVars
	{
    	name: 'Unnamed',
    	happiness: 10,
    	happinessThreshold: 100
	},
	// cVars
	{
	    initialize: function initialize(name) {
	        if (!name) throw new Error('name is required');
	        this.name = name;
	    },
	    sayName: function sayName() {
	        return 'My name is ' + this.name;
	    },
	    get isHappy() {
	        return this.happiness >= this.happinessThreshold;
	    }
	},
	// descriptors
	{
	    iVars: {
	        happinessThreshold: {
	            writable: false
	        }
	    },
	    cVars: {
	        sayName: {
	            writable: false,
	            configurable: false
	        }
	    }
	}
);

var mechi = Person.create('Mechi');

mechi.sayName() // -> 'My name is Mechi'
mechi.name // -> 'Mechi'
mechi.isHappy // -> false
mechi.happiness = 200;
mechi.isHappy // -> true
mechi.happinessThreshold = 0; // -> TypeError: Cannot assign to read only property
                                    'happinessThreshold' of [instance person-1]

mechi.super.objectName // -> 'Person'
mechi.super.toString() // -> '[class Person]'
mechi.super.super.objectName // -> 'Prototyper'
mechi.super.super.toString() // -> '[class Prototyper]'

To-do list

• Documentation
• More examples
• Browser version

Test

Run the command: npm test

License

Copyright (c) 2013 Claudio Romandini
Licensed under the MIT license.