Get total quizlet card count on a user's profile

quizlet.js

// requires jQuery
var items = $(".SetPreview-cardBylineWrapper");

function parseStr(strr) {
    var num = strr.split(" ")[0];
    return parseInt(num);
}

var total = 0;
for (var i = 0; i < items.length; i++) {
    var num = parseStr(items[i].innerText);
    if (num != undefined)
        total += num;
}

console.log(total/items.length);

Made for the purpose of counting the absurd number of cards that https://quizlet.com/bebrill has made on quizlet.com. For the record, it's almost 90k as of right now.