javascript inherit.js

inherit.js

#!/usr/local/bin/node

var assert = require('assert')

function Animal (name) {
    this.name = name;
}

assert.equal(new Animal("animal").constructor, Animal)
assert.equal(new Animal("animal") instanceof Animal, true)

Animal.prototype = {
    getName: function () {
        return this.name
    }
}
assert.equal(new Animal("animal").constructor, Object)
assert.equal(new Animal("animal") instanceof Animal, true)

Animal.prototype.constructor = Animal
assert.equal(new Animal("animal").constructor, Animal)

function Cat(name) {
    Animal.call(this, name);
    // Animal.apply(this, name);
}

Cat.prototype = new Animal()

Cat.prototype.getName = function () {
    return this.name
}

assert.equal(new Cat("animal").constructor, Animal)
assert.equal(new Cat("animal") instanceof Cat, true)

Cat.prototype.constructor = Cat
assert.equal(new Cat("animal").constructor, Cat)