Crawl Quiz from FUNiX.js

let dataCrawl = localStorage.getItem("dataCrawl") || "";
let lessonCrawl = localStorage.getItem("lessonCrawl") || "";
let lesson = document.getElementsByClassName("hd hd-2 unit-title")[0].innerText;
lessonCrawl += lessonCrawl === "" ? lesson : `, ${lesson}`;
localStorage.setItem("lessonCrawl", lessonCrawl);
let containers = document.getElementsByClassName("wrapper-problem-response");
for (let i = 0; i < containers.length; i++) {
    let correct = "Ans:";
    let count = 0;
    containers.item(i).getElementsByTagName("fieldset").item(0).childNodes.forEach(con => {
        let ansCode = String.fromCharCode(65 + count);
        if (con.tagName === "LEGEND") dataCrawl += `\n${con.innerText}`;
        if (con.className === "field") {
            if (con.childNodes[1].childNodes[1].checked) correct += correct === "Ans:" ? ansCode : `, ${ansCode}`;
            dataCrawl += `\n${ansCode}. ${con.childNodes[1].childNodes[2].nodeValue.trim()}`;
            count += 1;
        }
    });
    dataCrawl += `\n${correct}\n`;
    localStorage.setItem("dataCrawl", dataCrawl);
}
console.log(lessonCrawl);