16.2

function findCardFrequency(str){

    var pattern = new RegExp(/\W/g);

    var strings = str[0].split(pattern).filter(Boolean);

    var resultArr = {};

    for(i=0;i<strings.length;i++){
        resultArr[strings[i]]=0;
    }

    for(i=0;i<strings.length;i++){
        resultArr[strings[i]]+=1;
    }


console.log(resultArr)

}


findCardFrequency(['8♥ 2♣ 4♦ 10♦ J♥ A♠ K♦ 10♥ K♠ K♦']);
findCardFrequency(['J♥ 2♣ 2♦ 2♥ 2♦ 2♠ 2♦ J♥ 2♠']);