reverseString.js

//input = string
//output = string (can be modified string or new string)

//test case
//'hello'
// -> 'olleh'

function reverseString1(string) {
  var resultString = '';
  for (var i = string.length-1; i >= 0; i--) {
    resultString = resultString.concat(string[i]);
  }
  return resultString;
}

function reverseString2(string) {
  return string.split('').reverse().join('');
}

reverseString2('hello');