Rozšiřující materiál ke stránce pole

//https://javascript.info/task/shuffle
function shuffle(array) {
  array.sort(() => Math.random() - 0.5);
}
 
values = [7,8,9,10,'j','q','k','a']
colors = ['♠','♡','♢','♣']
cards = [] 
 
for (let i=0;i<values.length;i++){
  for (let j=0;j<colors.length;j++){
  cards.push(values[i]+colors[j])
  }
}
 
shuffle(cards)
 
console.log(cards)