DRY Penguins

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1

// the original Animal class and sayName method
function Animal(name, numLegs) {
this.name = name;
this.numLegs = numLegs;
}
Animal.prototype.sayName = function() {
console.log("Hi my name is " + this.name);
};

// define a Penguin class
function Penguin(name){
this.name = name;
this.numLegs = 2;
}

// set its prototype to be a new instance of Animal

Penguin.prototype = new Animal();

It allow me pass but did not display any result. Why is it so? i Understand that the penguin class have inherit the Animal class. My result came out this way. Please can someone explain more.

2

This code gives no output, why would it give any output? The things you do here is creating classes (animal and penguin which inherits from animal) and a class instance.

What is displayed to user is only a very small percentage of code (in general, in your case no output)

3

okay. Thanks. I got more understanding of the exercise when i did the next exercise.

4

you’re welcome :slight_smile: any questions about this exercise or the next one? Anything unclear?