在这里你可以试试这个逻辑：

var arrClubs = [
    {"img": '2_of_clubs.png',"rank": 1},{"img": '3_of_clubs.png',"rank": 2},
 ];
 
 console.log(arrClubs[0].rank)

不需要对数组进行字符串化，只需记录即可：

var arrClubs = [
    {"img": '2_of_clubs.png',"rank": 1},{"img": '3_of_clubs.png',"rank": 2},{"img": '4_of_clubs.png',"rank": 3},{"img": '5_of_clubs.png',"rank": 4},{"img": '6_of_clubs.png',"rank": 5},{"img": '7_of_clubs.png',"rank": 6},{"img": '8_of_clubs.png',"rank": 7},{"img": '9_of_clubs.png',"rank": 8},{"img": '10_of_clubs.png',"rank": 9},{"img": 'jack_of_clubs.png',"rank": 10},{"img": 'queen_of_clubs.png',"rank": 11},{"img": 'king_of_clubs.png',"rank": 12},{"img": 'ace_of_clubs.png',"rank": 13}
]

console.log(arrClubs)

或者更好的办法是，把它扔到table上：

console.table(arrClubs)

对于控制台日志，不必使用JSON.stringify。
如果要记录整个数组，请用途：console.log(arrClubs) .
要仅记录第一个等级值：console.log(arrClubs[0].rank) .
要记录所有排名，可以使用这些值创建一个数组，如下所示：

const ranks = arrClubs.map(item => item.rank);
console.log(ranks);