Rosetta Code

Playing cards

Construct a standard 52-card deck from suit and rank combinations.

Edit the source, then Run. Checks start after your first Run. Ctrl/⌘ + Enter runs; Tab indents. Preview services use sample data and never contact a real service.

Sourcerosettacode/popular/playing_cards.vibe
type RunResult = {
  count: int,
  first_three: array<{ rank: string, suit: string }>,
  last_three: array<{ rank: string, suit: string }>
}

def ranks -> array<string>
  ["A", "2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K"]
end

def suits -> array<string>
  ["spades", "hearts", "diamonds", "clubs"]
end

def build_deck -> array<{ rank: string, suit: string }>
  deck: array<{ rank: string, suit: string }> = []
  suit_index = 0

  while suit_index < suits.length
    rank_index = 0
    while rank_index < ranks.length
      deck.push({
        rank: ranks.fetch(rank_index),
        suit: suits.fetch(suit_index)
      })
      rank_index = rank_index + 1
    end
    suit_index = suit_index + 1
  end

  deck
end

def run -> RunResult
  deck = build_deck
  {
    count: deck.length,
    first_three: [deck.fetch(0), deck.fetch(1), deck.fetch(2)],
    last_three: [deck.fetch(deck.length - 3), deck.fetch(deck.length - 2), deck.fetch(deck.length - 1)]
  }
end

Output

Click Run example to see the result.

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