Given this class; how would i iterate over the methods that it includes?

class Animal {

    constructor(type){

        this.animalType = type;

    }

    getAnimalType(){

        console.log('this.animalType: ', this.animalType );

    }

}



let cat = window.cat = new Animal('cat')

What I have tried is the following with no success:

for (var each in Object.getPrototypeOf(cat) ){

    console.log(each);

}