http://www.freecodecamp.com/thetinybeaker 's solution for Bonfire: Reverse a String

bonfire-reverse-a-string#.js

// Bonfire: Reverse a String
// Author: @thetinybeaker
// Challenge: http://www.freecodecamp.com/challenges/bonfire-reverse-a-string#
// Learn to Code at Free Code Camp (www.freecodecamp.com)

function reverseString(str) {
  return str.split('').reverse().join('');
}
//.split('') splits each letter...'' indicates no space in between splits, and puts the string into an array.
//[G,r,e,e,t,i,n,g,s, ,f,r,o,m, ,E,a,r,t,h]

//.reverse() reverses the order of the array
//[h,t,r,a,E, ,m,o,r,f, ,s,g,n,i,t,e,e,r,G]

//.join('') joins the words together for those with no space in between.
//[htraE morf sgniteerG]

reverseString("hello");
reverseString("Howdy");
reverseString("Greetings from Earth");