text: /**
  When provided with a letter, return its position in the alphabet.
  
  Input :: "a"
  
  Ouput :: "Position of alphabet: 1"
  **/
  
  function position(letter){
    //Write your own Code!
    var pos = 'abcdefghijklmnopqrstuvwxyz'.split('').indexOf(letter) + 1;
    return 'Position of alphabet: ' + pos;
  }
  