inherit_and_prototype.js

// parent class
function Animal(name) {
    this.name = name;
};
Animal.prototype.getName = function() {
    return console.log(this.name);
};

// child class
function Dog(name){
    this.name = name;
};
Dog.prototype.bark = function() {
    return console.log('Dog ' + this.name + ' is barking');
};

// Dog class inherit Animal class
// Dog.prototype = Object.create(Animal.prototype);
Dog.prototype.__proto__ = Animal.prototype;

// init
var dog = new Dog ('Goofy');
dog.getName(); // 'Goofy'
dog.bark(); // 'Dog Goofy is barking'