Javascript: Get nth character of string (JSChallenger)

Question

I am a total newbie and currently learning Javacript. I encountered this problem on JSChallenger and have been struggling with it. Here's my code:

// Write a function that takes a string (a) and a number (n) as argument
// Return the nth character of 'a'
function myFunction(a, n)
{let string = a;
let index = n;
return string.charAt(index);
}

Can anyone point out my errors? Thanks so much!

Answer 1

Try this one

function myFunction(a, n){
return a[n - 1];}

Answer 2

// there is a shorter way to do this since you want to find what's missing here is what's missing. 
function myFunction(a, n){
    let string = a;
    let index = n-1;
    return string.charAt(index);
}