Prototypal Inheritance

prototypal_Inheritance

//From http://youtu.be/PMfcsYzj-9M?t=14m48s

var AnswerPrototype = {
	constructor: function fn0(value) {
		this._val = value;
	},
	get: function fn1() {
		return this._val;
	}
};


var lifeAnswers = Object.create(AnswerPrototype);
    lifeAnswers.constructor(42);
    console.log(lifeAnswers.get()); // 42


var dessertAnswer = Object.create(AnswerPrototype);
    dessertAnswer.constructor(3.1459);
    console.log(dessertAnswer.get()); // 3.1459


var firmAnswerPrototype = Object.create(AnswerPrototype);
    firmAnswerPrototype.get = function fn2() {
	    return AnswerPrototype.get.call(this) + "!!";
    };


var luckyAnswer = Object.create(firmAnswerPrototype);
    luckyAnswer.constructor(7);
    console.log(luckyAnswer.get()); // 7!! 


var magicAnswer = Object.create(firmAnswerPrototype);
    magicAnswer.constructor(3);
    console.log(magicAnswer.get()); // 3!!