class Card {
    constructor(face,suit){
        this.face=face;
        this.suit=suit;
    }

    get face(){
        return this.face;
    }
    set face(valueFace){
        let valid=['2', '3', '4', '5', '6', '7', '8', '9', '10', 'J', 'Q', 'K', 'A'];
        if(!valid.includes(valueFace)){
            throw new Error('Invalid card face:' +valueFace);
        }
        this.face=valueFace;
    }
    get suit(){
        return this.suit;
    }
    set suit(valueSuit){
        let validSuit=['C','D','H','S'];
        if(!validSuit.includes(valueSuit)){
            throw new Error('Invalid card suit:' +valueSuit)
        }
        this.suit=valueSuit;
    }

    toString(){
        let convertObj={
            'C': "\u2663",
            'D': "\u2666",
            'H': "\u2665",
            'S': "\u2660",
        }
        return this.face+convertObj[this.suit];
    }
}
let card=new Card('J','D');
console.log(card);