Why can’t a string be used for this?

Question

So here’s the code to reverse a string. Why is a string the wrong data type?

https://code.sololearn.com/c0eUPG2ry7MN/?ref=app

Answer 1

If your string has a length of 5, then the max index will be 4. So you would need to start at str.length-1 to count down