JSFiddle - React, Tailwind, and code Playground

HTML

Monsters: <input id="monsters" type="text" value="10"/>

JavaScript

var numMonsters = parseInt(document.getElementById("monsters").value, 10);

var n1 = 120000;

var n2 = 100000;



if (n1 < n2) {
    alert("Monsters win! Variable is a " + typeof numMonsters);
} else {
    alert("Fail.");
}