JSFiddle - React, Tailwind, and code Playground

by steveukx

HTML

<span id="spanval" class="clickhere">1</span>
<input id="spanvalue" name="spanvalue" value="0" />

JavaScript

$('.clickhere').on('click', function() {
    debugger;
  var input = $('#spanvalue');
  input.val( +input.val() + +this.innerHTML);
});