JSFiddle - React, Tailwind, and code Playground

by amatiasq

HTML

<script src="http://amatiasq.com/fiddle-console.js"></script>

JavaScript

function MyNumber(value) {
    if (MyNumber.cache[value])
        return MyNumber.cache[value];
    
    this.value = value;
    MyNumber.cache[value] = this;
    return this;
}
MyNumber.cache = {};

var num1 = new MyNumber(3);
var num2 = new MyNumber(3);

console.log(num1 === num2);