versi lebih ringkas dan effecient

[Abdullah Said]

`function foxEars(foxs){
return (foxs == 0) ? 0 : foxEars(foxs - 1) + 2
}

console.log(foxEars(3));
console.log(foxEars(4));
console.log(foxEars(6));
console.log(foxEars(0));`
//buat soal challange-1.js final live code