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JavaScript Object-Oriented JavaScript (2015) Practice Project Object-Oriented JavaScript Review

Sam Parkash
Sam Parkash
6,645 Points
Posted by Sam Parkash
Sam Parkash
6,645 Points

Can't understand this small part of code

Hi, could someone please tell me why we say "this.noise" twice in the Animal.prototype.makeNoise function below. Thanks.

function Animal(breed, noise) { this.breed = breed; this.noise = noise; }

Animal.prototype.makeNoise = function() { console.log(this.noise + ", " + this.noise); }

1 Answer

Steven Parker
Steven Parker
229,644 Points
Steven Parker
Steven Parker
229,644 Points

:point_right: It's given twice just to replicate it in the output.

So if the sound is "ribbit", calling makeNoise() will log "ribbit, ribbit".

Sam Parkash
Sam Parkash
6,645 Points
Sam Parkash
Sam Parkash
6,645 Points

Oh ok, Thanks :)