JSFiddle - React, Tailwind, and code Playground

HTML

<body>
	    <div class="wrapper">
	        <ul>
	            <li>
	                Real
	                <input type="checkbox" name="real" id="real">
	            </li>
	            <li>
	                Strip
	                <input type="checkbox" name="sim" id="sim">
	            </li>
	            <li>
	                Reverse
	                <input type="checkbox" name="rev" id="rev">
	            </li>
	            <li>
	                Foil
	                <input type="checkbox" name="foi" id="foi">
	            </li>
	        </ul>
	    </div>
	   
	</body>

JavaScript

var controller = {

         realtime: true,
         listenz: function(ele, e, fn, c, o) {

             //validate
             if (!(e instanceof Array)) {
                 throw 'Javascript Listener:  Error 642';
             }


             var h = function() {
             	fn.apply(this, o && o instanceof Array ? o : arguments);
             };


             //bind events
             for (var i = 0; i < e.length; i ++) {
                 ele.addEventListener(e[i], h, c);
             }
         },
         initz: function() {
             this.listenz(document.getElementById("real"), ["change"], this.handleEvent, false);
             this.listenz(document.getElementById("foi"), ["change"], this.handleEvent, false);
             this.listenz(document.getElementById("sim"), ["change"], this.handleEvent, false);
             this.listenz(document.getElementById("rev"), ["change"], this.handleEvent, false);
         },

         handleEvent: function(e) {
             switch (e.target.id) {
                 case 'real':
                     alert('real');
                 	 
                     //this.realtime = e.target.checked ? true : false;
                     //this.realz();
                     if (this.realtime) this.submitz();
                     break;
                 default:
                     console.log('default');
                     if (this.realtime) this.submitz();
                     break;
             }
         }
     };
controller.initz()