Prototype function

JavaScript
1

i did exactly like the example, this somehow doesnt work

Your code so far


function Animal() { }
Animal.prototype.eat = function() { console.log("nom nom nom"); };

function Dog() { 
    


// Add your code below this line
 Dog.prototype = Object.create(Animal.prototype);
    Dog.prototype.constructor= Dog;
Dog.prototype.bark = function(){
    console.log("Woof!");
}
}


// Add your code above this line

let beagle = new Dog();

beagle.eat(); // Should print "nom nom nom"
beagle.bark(); // Should print "Woof!"

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36.

Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/object-oriented-programming/add-methods-after-inheritance

2

You’re almost there. Notice that in the example, the constructor function definition is self-contained:

function Animal() { }

The prototype definitions come after.

But in yours you’ve put the prototype definitions inside the constructor function.

When I change that, your solution passes.

1 Like