diff --git a/script.js b/script.js
index bbe8a293..2a8b805d 100644
--- a/script.js
+++ b/script.js
@@ -1,4 +1,197 @@
+// BlackJack project
+// Steps:
+// 1. deal and compare hands to determine any Blackjack winner
+// 2. player hit or stand
+// 3. compare player VS computer hands. declare winner
+
+var playerHand = [];
+var computerHand = [];
+var cardDeck = [];
+var shuffledDeck = [];
+var gameMode = "deal"; //game modes: 'deal', 'compare', 'play', 'evaluate'
+
+var checkBlackJack = function (handArray) {
+  var playerCardOne = handArray[0];
+  var playerCardTwo = handArray[1];
+  var isBlackJack = false;
+
+  if (
+    (playerCardOne.name == "ace" && playerCardTwo.rank >= 10) ||
+    (playerCardOne.rank >= 10 && playerCardTwo.name == "ace")
+  ) {
+    isBlackJack = true;
+  }
+  return isBlackJack;
+};
+
+var makeDeck = function () {
+  var suits = ["hearts", "diamonds", "clubs", "spades"];
+
+  var suitIndex = 0;
+  while (suitIndex < suits.length) {
+    var currentSuit = suits[suitIndex];
+
+    var rankCounter = 1;
+    while (rankCounter <= 13) {
+      var cardName = rankCounter;
+
+      if (cardName == 1) {
+        cardName = "ace";
+      } else if (cardName == 11) {
+        cardName = "jack";
+      } else if (cardName == 12) {
+        cardName = "queen";
+      } else if (cardName == 13) {
+        cardName = "king";
+      }
+
+      var card = {
+        name: cardName,
+        suit: currentSuit,
+        rank: rankCounter,
+      };
+
+      cardDeck.push(card);
+
+      rankCounter += 1;
+    }
+
+    suitIndex += 1;
+  }
+
+  return cardDeck;
+};
+
+var getRandomIndex = function (max) {
+  return Math.floor(Math.random() * max);
+};
+
+// Shuffle the elements in the cardDeck array
+var shuffleCards = function (cardDeck) {
+  var currentIndex = 0;
+  while (currentIndex < cardDeck.length) {
+    var randomIndex = getRandomIndex(cardDeck.length);
+
+    var randomCard = cardDeck[randomIndex];
+
+    var currentCard = cardDeck[currentIndex];
+
+    cardDeck[currentIndex] = randomCard;
+    cardDeck[randomIndex] = currentCard;
+
+    currentIndex = currentIndex + 1;
+  }
+
+  return cardDeck;
+};
+
+var calcTotalHandValue = function (handArray) {
+  var totalHandValue = 0;
+  var index = 0;
+  while (index < handArray.length) {
+    var currentCard = handArray[index];
+    if (
+      currentCard.name == "jack" ||
+      currentCard.name == "queen" ||
+      currentCard.name == "king"
+    ) {
+      totalHandValue = totalHandValue + 10;
+    } else {
+      totalHandValue = totalHandValue + currentCard.rank;
+    }
+    index = index + 1;
+  }
+  return totalHandValue;
+};
+
 var main = function (input) {
-  var myOutputValue = 'hello world';
-  return myOutputValue;
+  var myOutputValue = "";
+
+  if (gameMode == "deal") {
+    shuffledDeck = shuffleCards(makeDeck());
+    console.log("this is shuffled deck", shuffledDeck);
+    playerHand.push(shuffledDeck.pop());
+    console.log("1st player card");
+
+    playerHand.push(shuffledDeck.pop());
+    console.log("2nd player card");
+
+    console.log("this is player hand", playerHand);
+
+    computerHand.push(shuffledDeck.pop());
+    console.log("1st computer card");
+
+    computerHand.push(shuffledDeck.pop());
+    console.log("2nd computer card");
+
+    console.log("this is computer hand", computerHand);
+
+    gameMode = "compare";
+    myOutputValue =
+      "Hands have been dealt. Your hand is " +
+      playerHand[0].name +
+      " of " +
+      playerHand[0].suit +
+      " and " +
+      playerHand[1].name +
+      " of " +
+      playerHand[1].suit +
+      ". Click submit again to compare your hand with the dealer's to check for BlackJack";
+    return myOutputValue;
+  }
+  if (gameMode == "compare") {
+    var playerBlackJack = checkBlackJack(playerHand);
+    var computerBlackJack = checkBlackJack(computerHand);
+    myOutputValue =
+      "Nobody got BlackJack We will continue playing the game. Type 'Hit' to draw another card or 'Stand' to end your turn";
+    if (playerBlackJack == true || computerBlackJack == true) {
+      if (playerBlackJack == true && computerBlackJack == true) {
+        return (myOutputValue = "You both got BlackJack! It is a tie!");
+      } else if (playerBlackJack == true && computerBlackJack == false) {
+        return (myOutputValue = "You got BlackJack! You win!");
+      } else playerBlackJack == false && computerBlackJack == true;
+      {
+        return (myOutputValue = "Computer got BlackJack! You lose :(");
+      }
+    }
+
+    gameMode = "play";
+    console.log("game mode after blackjack check", gameMode);
+    return myOutputValue;
+  }
+  if (gameMode == "play") {
+    if (input == "hit") {
+      playerHand.push(shuffledDeck.pop());
+      myOutputValue =
+        "Your hand is " +
+        playerHand[0].name +
+        " of " +
+        playerHand[0].suit +
+        " and " +
+        playerHand[1].name +
+        " of " +
+        playerHand[1].suit +
+        " and " +
+        playerHand[2].name +
+        " of " +
+        playerHand[2].suit +
+        ". Type STAND to compare your hand with the computer hand.";
+      return myOutputValue;
+    }
+    if (input == "stand") {
+      myOutputValue =
+        "You chose to stand. Click submit again to compare your hand with the dealer's to see who wins";
+      gameMode = "evaluate";
+      console.log("game mode after STAND", gameMode);
+      return myOutputValue;
+    }
+  }
+  if (gameMode == "evaluate") {
+    var playerHandValue = calcTotalHandValue(playerHand);
+    var computerHandValue = calcTotalHandValue(computerHand);
+    if (playerHandValue > computerHandValue) {
+      return `Your hand is ${playerHandValue} which is greater than the computer's of ${computerHandValue}. You win!`;
+    }
+  }
+  return `The computer's hand is ${computerHandValue} which is greater than yours of ${playerHandValue}. You lose :(`;
 };