There are tags:

<input type="text" name="profession" placeholder="Ответ" class="qn_1">

How to find out by means of js, which tag of the qn_1 class?

    2 answers 2

     $("output").text(Array.prototype.map.call($(".qn_1"), function (el) { return el.tagName.toLowerCase(); }).join("\n")); 
     <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <input type="hidden" name="profession" placeholder="Ответ" class="qn_1"> <div class="qn_1"></div> <pre><output></output></pre>

    • you have become too smart :-) jQuery has its own map - Grundy
    • @Grundy, but he doesn't have a join ... - Qwertiy ♦
    • Yeah, but there is a toArray that will return an array that has :-) and in the extreme case, you can also join via call — Grundy

     console.log(document.querySelector('.qn_1').tagName); 
     <input type="text" name="profession" placeholder="Ответ" class="qn_1">