JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.0.0-beta1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script>

JavaScript

$(document).ready(function() {
  var concept = function() {
      this.ConceptId = 0;
      this.Name = "";
  }

  var concept_obj = new concept();
	alert(concept_obj.ConceptId);  
});