Deck shuffle test

shuffle.js

var suits = ['S', 'H', 'D', 'C'],
    numbers = ['2', '3', '4', '5', '6', '7', '8', '9', '10', 'J', 'Q', 'K', 'A'],
    deck = [];

// Loop to organize by suit
for (var i = 0; i < suits.length; i++) {
  
  // Loop to add number to suit
  for (var x = 0; x < numbers.length; x++) {
    
    // Push suit + number to deck array
    deck.push(suits[i] + numbers[x]);
  }
}

// Function to shuffle newly created deck
function shuffleDeck(n) {
  
  // Array for shuffled deck
  var shuffled = [];
  
  // Loop for cards in deck
  for (var y = 0; y < deck.length; y++) {
    
    // Selecting random card
    var rand = Math.floor(Math.random() * (y + 1));  
    
    // Setting cards in shuffled deck
    shuffled[y] = shuffled[rand];
    shuffled[rand] = deck[y];
  }
  console.log(shuffled);
}
shuffleDeck();