http://www.freecodecamp.com/bskydive 's solution for Bonfire: Confirm the Ending

bonfire-confirm-the-ending#.js

// Bonfire: Confirm the Ending
// Author: @bskydive
// Challenge: http://www.freecodecamp.com/challenges/bonfire-confirm-the-ending#
// Learn to Code at Free Code Camp (www.freecodecamp.com)

function end(str, target) {
  
  return str.substr(-target.length,target.length)==target;
}

end("Bastian", "n");