Does anyone know the return?

Question

function isNumber() {
const number1 = "123"
const number2 = "123a"

console.log(isNaN(number1));
console.log(isNaN(number2));

return
}

Answer 1

false since 123 is a number
true since 123a is not a number
If you have other problems you can use the playground to paste the codes and see the answers👍🏼

Answer 2

Here you found my implementation https://code.sololearn.com/Wb5r5bRikG3p/?ref=app