<!DOCTYPE html>
<html>
<body>
<p>Never create numbers as objects.</p>
<p>Numbers and objects cannot be safely compared.</p>
<p id="demo"></p>
<script>
var x = 500; // x is a number
var y = new Number(500); // y is an object
document.getElementById("demo").innerHTML = (x==y);
</script>
</body>
</html>