xiao/structures/cards/Card.js

const displaySuits = {
	spades: '♠',
	diamonds: '♦',
	hearts: '♥',
	clubs: '♣',
	joker: '⭐'
};

module.exports = class Card {
	constructor(value, suit) {
		this.value = value;
		this.suit = suit;
	}

	get blackjackValue() {
		if (this.value === 'Joker') return 0;
		if (this.value === 'King' || this.value === 'Queen' || this.value === 'Jack') return 10;
		if (this.value === 'Ace') return 11;
		return this.value;
	}

	get display() {
		return `${displaySuits[this.suit]} ${this.value}`;
	}

	get pokersolverKey() {
		if (this.value === 'Joker') return null;
		let suitLetter;
		switch (this.suit) {
			case 'clubs': suitLetter = 'c'; break;
			case 'hearts': suitLetter = 'h'; break;
			case 'diamonds': suitLetter = 'd'; break;
			case 'spades': suitLetter = 's'; break;
		}
		let value;
		switch (this.value) {
			case 'King': value = 'K'; break;
			case 'Queen': value = 'Q'; break;
			case 'Jack': value = 'J'; break;
			case 'Ace': value = 'A'; break;
			case 10: value = 'T'; break;
			default: value = this.value; break;
		}
		return `${value}${suitLetter}`;
	}
};