JSFiddle - React, Tailwind, and code Playground

HTML

<div id="generatePinsDialog" >
    <label for="newCount" style="width: 400px;">
        How many?</label>
    <input id="newCount" type="text" size="25" placeholder="Enter the number!" />
    <br />
</div>

JavaScript

jQuery(function() {
    jQuery.support.placeholder = false;
    test = $('#newCount');
    if('placeholder' in test) jQuery.support.placeholder = true;
});