Simple_card_game.js

// -----------------------------Description------------------------------------------
// Steve and Josh are bored and want to play something. They don't want to think too much, so they come up with a really simple game. Write a function called winner and figure out who is going to win.

// They are dealt the same number of cards. They both flip the card on the top of their deck. Whoever has a card with higher value wins the round and gets one point (if the cards are of the same value, neither of them gets a point). After this, the two cards are discarded and they flip another card from the top of their deck. They do this until they have no cards left.

// deckSteve and deckJosh are arrays representing their decks. They are filled with cards, represented by a single character. The card rank is as follows (from lowest to highest):

// '2','3','4','5','6','7','8','9','T','J','Q','K','A'
// Every card may appear in the deck more than once. Figure out who is going to win and return who wins and with what score:

// "Steve wins x to y" if Steve wins; where x is Steve's score, y is Josh's score;
// "Josh wins x to y" if Josh wins; where x is Josh's score, y is Steve's score;
// "Tie" if the score is tied at the end of the game.
// Example
// Steve is dealt: ['A','7','8']
// Josh is dealt: ['K','5','9']
// In the first round, ace beats king and Steve gets one point.
// In the second round, 7 beats 5 and Steve gets his second point.
// In the third round, 9 beats 8 and Josh gets one point.
// So you should return: "Steve wins 2 to 1"
// ----------------------------------------------------------------------------------

function winner(deckSteve, deckJosh) {
  const values = {
    2: 2,
    3: 3,
    4: 4,
    5: 5,
    6: 6,
    7: 7,
    8: 8,
    9: 9,
    T: 10,
    J: 11,
    Q: 12,
    K: 13,
    A: 14,
  };
  let scoreSteve = 0;
  let scoreJosh = 0;

  for (let i = 0; i < deckSteve.length; i++) {
    const steveValue = values[deckSteve[i]];
    const joshValue = values[deckJosh[i]];

    if (steveValue > joshValue) {
      scoreSteve++;
    } else if (joshValue > steveValue) {
      scoreJosh++;
    }
  }

  if (scoreSteve > scoreJosh) {
    return `Steve wins ${scoreSteve} to ${scoreJosh}`;
  } else if (scoreJosh > scoreSteve) {
    return `Josh wins ${scoreJosh} to ${scoreSteve}`;
  } else {
    return "Tie";
  }
}

// Example usage:
const deckSteve = ['A','7','8'];
const deckJosh = ['K','5','9'];

console.log(winner(deckSteve, deckJosh)); // Output: "Steve wins 2 to 1"