Reverse String

Directions

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

Examples:

reverse('apple') === 'elppa'

reverse('hello') === 'olleh'

reverse('Greetings!') === '!sgniteerG'

Solutions

• Solution #1

    function reverse(str) {
      if (!str || typeof str !== 'string') {  // Validation
        return str;
      }
  
      return str
        .split('')
        .reverse()
        .join('');
    }
  

  
  

  Same as

  
  

    function reverse(str) {
      let arr = str.split('');
      arr.reverse();
      arr = arr.join('');
      return(arr);
    }
  

Usefult info

• Convert string to array

    const arr = str.split('');
  
  

• Reverse array

    arr.reverse();  // arr contains items in the reversed order
  
  

• Convert array to string

    newStr = arr.join('');