Improve performance of simple Javascript code to generate and shuffle a deck of cards

The below code will crash my browser if the number of decks is more than one. What can I do to resolve this? Disabling the shuffle does not seem to have any impact. I tried putting it JSFiddle and that also crashes.

function shuffleDeck(jokers) {
  let deck = [
    '♥A', '♥2', '♥3', '♥4', '♥5', '♥6', '♥7', '♥8', '♥9', '♥T', '♥J', '♥Q', '♥K',
    '♦A', '♦2', '♦3', '♦4', '♦5', '♦6', '♦7', '♦8', '♦9', '♦T', '♦J', '♦Q', '♦K',
    '♣A', '♣2', '♣3', '♣4', '♣5', '♣6', '♣7', '♣8', '♣9', '♣T', '♣J', '♣Q', '♣K',
    '♠A', '♠2', '♠3', '♠4', '♠5', '♠6', '♠7', '♠8', '♠9', '♠T', '♠J', '♠Q', '♠K'
  ];

  if (jokers) {
    for (i = 0; i < jokers; i++) {
      deck.push('&star;');
    }
  }

  for (let i = deck.length - 1; i > 0; i--) {
    const j = Math.floor(Math.random() * (i + 1));
    [deck[i], deck[j]] = [deck[j], deck[i]];
  }

  return deck;
}

function generateRandomDeck() {
  let jokers = document.getElementById('cardsInputNumberOfJokers').value;
  let numberOfDecks = document.getElementById('cardsInputNumberOfDecks').value;

  currentArray = [];

  for (i = 0; i < numberOfDecks; i++) {
    let deck = shuffleDeck(jokers);
    currentArray = currentArray.concat(deck);
  }

  console.log(`generating ${numberOfDecks} deck(s)`);
  console.log(currentArray);
}

generateRandomDeck();
<input type="text" value="2" id="cardsInputNumberOfJokers" />
<input type="text" value="2" id="cardsInputNumberOfDecks" />