Problem

Write a function that takes a string as input and returns the string reversed.

Example 1:

Input: “hello” Output: “olleh”

Example 2:

Input: “A man, a plan, a canal: Panama” Output: “amanaP :lanac a ,nalp a ,nam A”

Pre analysis

Will do simple JS reverse. I think better way would be get swap left with right unless you reach center.

Another solution

var reverseString = function(s) {
    let res = "";

    for (let i = s.length - 1; i >= 0; i--) {
        res += s[i];
    }
    return res;
};