Hangman Function

var words= ["goat", "cheese", "milk"];

var pickWord = function() {
  return words[Math.floor(Math.random() * words.length)];
};
var word = pickWord();


var setupAnswerArray = function(word) {
  var myArray =[];
  for(var i = 0; i < word.length; i++) {
    myArray[i] = "_";
  }
  return myArray;


};
var answerArray = setupAnswerArray(word);
var remainingLetters = word.length;


var showPlayerProgress = function(answerArray) {
  alert("The Secret Word is  " + answerArray.join(" "));
};


var getGuess = function() {
  return prompt("Pick a Letter, any Letter");
};


var updateGameState = function(guess, word, answerArray) {
  for(var j = 0; j < word.length; j++) {
    if(word[j] === guess) {
      answerArray[j] = guess;
      remainingLetters--;
    }
  }
}


var showAnswerAndCongratulatePlayer = function(answerArray) {
 alert("Winner!!" + answerArray.join(" "))
 }

 while(remainingLetters > 0) {
   showPlayerProgress(answerArray);
   var guess = getGuess();
   if(guess === null) {
     break;
   }else if(guess.length !== 1) {
     alert("please enter a single letter");
   }else {
     var correctGuesses = updateGameState(guess, word, answerArray);
     remainingLetters -= correctGuesses;
   }
 };
showAnswerAndCongratulatePlayer;