No, I understand very well what you were doing, I suppose that the function receives the amount of dollars to be converted, proof of this form
function coinConvert(usDollars=50) {
var peruvianSoles = usDollars*3.25;
var mexicanPesos = usDollars*18;
var chileanPesos = usDollars*660;
var arr = {
peruvianSoles: peruvianSoles + " soles peruanos",
mexicanPesos: mexicanPesos + " pesos mexicanos",
chileanPesos: chileanPesos + " pesos chilenos"
};
console.log(arr);
return arr;
};
function coinConvert(usDollars=50) {
var arr = [];
var peruvianSoles = usDollars*3.25;
var mexicanPesos = usDollars*18;
var chileanPesos = usDollars*660;
arr.push(peruvianSoles + " soles peruanos");
arr.push(mexicanPesos + " pesos mexicanos");
arr.push(chileanPesos + " pesos chilenos");
console.log(arr);
return arr;
};