Reverse a String errors

JavaScript
1

Tell us what’s happening:

i get the error Cannot assign to read only property ‘0’ of string ‘hello’

Your code so far


function reverseString(str) {

  for(let i=0;i<str.length/2;i++){
    let temp=str[i];
    str[i]=str[str.length-1-i];
    str[str.length-1-i]=temp;
  }
  return str;
}

reverseString("hello");

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.119 Safari/537.36.

Link to the challenge:

2

Strings are immutable, you can’t do this:

str[i]=str[str.length-1-i];

You cannot mutate strings, you need to make a new string.