JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/dojo/1.9.1//dojo/resources/dojo.css">
<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/dojo/1.9.1/dijit/themes/tundra/tundra.css">
<body class="tundra">
  <script type="text/javascript">
  
  function FunctionCallInline() {
    console.log('FunctionCallInline:', arguments);
}
  </script>
  <div data-dojo-type="dijit/form/Form">
  <script type="text/javascript">
  console.log('inline running');
  var btn = document.getElementById('testButton');
  console.log(btn.innerHTML);
  
  </script>
    <button id="testButton" data-dojo-type="dijit/form/Button" type="button">Click me too!
       
        <script type="dojo/on" data-dojo-event="click" data-dojo-args="evt">
            FunctionCallInline();
            
            // You can also call FunctionCall with evt:
            FunctionCallInline(evt);
        </script>
    </button> 
    </div>
</body>

JavaScript

function FunctionCall() {
    console.log('FunctionCall:', arguments);
}