[Help needed] Javascript practise - currency converting

Question

Hi all !
I have difficulties to achieve this practise.
This is my code and I can't see what is wrong.
I have the error "NaN" in every test cases...

function main() {
var amount = parseFloat(readLine(), 10);
var rate = parseFloat(readLine(), 10);

function convert(montant, taux) {
var nvxMontant = montant * taux;
return nvxMontant;
}

console.log(convert(amount, rate));
}

main();

Could someone help me please ?

Answer 1

In Sololearn challenges, main() function is called by compiler itself. It's not necessary to call in your solutions.
//main();

Answer 2

Thanks !