JSFiddle - React, Tailwind, and code Playground

by Derek Leung

JavaScript

var Test = function() {
        var counter= 0;
    
        function init() {
                alert(counter);
        }
        function changeNum(n){
            counter = n;
        }
    
        return {
            counter: counter,
            init: init,
            changeNum: changeNum
        }
    };

var test1 = new Test();
alert(test1.counter); // Alerts 0
test1.changeNum(5);
test1.init();