JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://code.jquery.com/jquery-1.11.2.min.js"></script>
<input type="" id="appName1"/>
<input type="" id="appName2"/>
<input type="" id="appName3"/>

JavaScript

$(document).ready(function() {
    var attrName = "appName";
     $('input[id^=' + attrName + ']').each(function () {
         $(this).val($(this).attr('id'));
     });
});