Exercise 1: String Reversal

Directions

Given a string, return a new string with the reversed order of characters

Examples

reverse('apple') === 'leppa'
reverse('hello') === 'olleh'
reverse('Greetings!') === '!sgniteerG'

Guidelines

Three possible solutions:

1. Use multiple string library functions
2. Use for...of loop
3. Use array helper reduce

Solution

function reverse(str) {
  return str.split("").reverse().join("");
}

Alernative Solution: for...of loop

function reverse(str) {
  let reversed = "";
  for (let character of str){ /* try not to use for loop, use for...of loop instead! */
    reversed = character + reversed;
  }
  return reversed;
}

Alernative Solution: reduce()

function reverse(str){
  return str.split("").reduce((rev, char) =>
    char + rev
  ,"");
}

reverse('apple')

'elppa'

reverse('hello')

'olleh'

reverse('Greetings!')

'!sgniteerG'