JSFiddle - React, Tailwind, and code Playground

HTML

<script type="text/javascript">run();</script>

JavaScript

var SomeClass = function() {  
    // some stuff that uses initRequest    
    this.initRequest = function() {  
        if (window.XMLHttpRequest) {  
            return new XMLHttpRequest();  
        } else if (window.ActiveXObject) {  
            return new ActiveXObject("Microsoft.XMLHTTP");  
        }   
     };  
};

var request = "The string";  
var instance = new SomeClass();
instance.initRequest = function() {
    return request;
};

alert(instance.initRequest());
    
    run();