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Etudier le code 

const cards = [];
   for(let suit of ['H', 'C', 'D', 'S']) // hearts, clubs, diamonds, spades
       for(let value=1; value<=13; value++)
           cards.push({ suit,value });

Object.keys(cards).forEach(function (c,i) {
 console.log(`carte N°${i} ${cards[c].suit}${cards[c].value}`);
});

for (let c of cards){
   console.log(`${c.suit}${c.value}`);
}


let dictionnary = { 'H': '\u2665', 'C': '\u2663', 'D': '\u2666', 'S': '\u2660',  1: 'A', 11: 'J', 12: 'Q', 13: 'K'};


function cardToString({suit,value}) { // 

    if (!dictionnary[value]==0) value=dictionnary[value];

    return value+dictionnary[suit];
}

Object.keys(cards).forEach(function(c) {
 //console.log(cards[c]);
 console.log(`carte ${cardToString(cards[c])}`);
});

for (let c of cards){
   console.log(`${cardToString(c)}`);
}


console.log(` les cartes du paquet sont : ${cards.map(cardToString)}`);

Trouver le code pour afficher "les figures Rouges : J♥,Q♥,K♥,J♦,Q♦,K♦"

 




const cards = [];
   for(let suit of ['H', 'C', 'D', 'S']) // hearts, clubs, diamonds, spades
       for(let value=1; value<=13; value++)
           cards.push({ suit,value });

Object.keys(cards).forEach(function (c,i) {
 console.log(`carte N°${i} ${cards[c].suit}${cards[c].value}`);
});

for (let c of cards){
   console.log(`${c.suit}${c.value}`);
}


let dictionnary = { 'H': '\u2665', 'C': '\u2663', 'D': '\u2666', 'S': '\u2660',  1: 'A', 11: 'J', 12: 'Q', 13: 'K'};


function cardToString({suit,value}) { // 

    if (!dictionnary[value]==0) value=dictionnary[value];

    return value+dictionnary[suit];
}

Object.keys(cards).forEach(function(c) {
 //console.log(cards[c]);
 console.log(`carte ${cardToString(cards[c])}`);
});

for (let c of cards){
   console.log(`${cardToString(c)}`);
}


console.log(` les cartes du paquet sont : ${cards.map(cardToString)}`);


console.log(`les figures Rouges : ${cards.filter(c => c.value > 10 && (c.suit === 'H' || c.suit === 'D')  ).map(cardToString) }`);

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