hiddenInput = '<input type="text" name="b_ef1fb2fb5c60353bfdffd48db_71b534c03f" tabindex="-1" value="">'
function parseHTML(html) {
const root = document.implementation.createHTMLDocument();
root.body.innerHTML = html
return root.body.children[0];
}
const inputName = parseHTML('<input type="text" name="b_ef1fb2fb5c60353bfdffd48db_71b534c03f" tabindex="-1" value="">').getAttribute('name');
console.log(inputName); //> "b_ef1fb2fb5c60353bfdffd48db_71b534c03f"