cassidoo_dec_8_2025.js

// below here we can use functional structures again

const suits = ["♠", "♥", "♣", "♦"];
const cards = ["A", "K", "Q", "J", "9", "8", "7", "6", "5", "4", "3", "2"];

function new_deck() {
    return suits.flatMap(suit => 
        cards.map(card => `${card}${suit}`));
}

function shuffle(cards, iterations = 1000) {

    if(iterations < 1) return cards;
    const i = Math.floor(Math.random() * cards.length);
    const sorted = [...cards];
    const [extracted] = sorted.splice(i, 1);
    return shuffle(
        [...sorted, extracted],
        iterations - 1
    );

}

function draw(deck, n) {

    return deck.splice(0, n);

}

// problem is defined specifying classes and methods so we are forced to use one for the entry point

class Deck {
    #deck;
    constructor() { this.#deck = new_deck(); }
    shuffle() { this.#deck = shuffle(this.#deck); }
    draw(n) { return draw(this.#deck, n); }
}

// demo

const deck = new Deck();
deck.shuffle();
console.log(deck.draw(5));
console.log(deck.draw(5));