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<!DOCTYPE html>
<html>
<body>
<h1>JavaScript Numbers</h1>
<h2>The NEGATIVE_INFINITY Property</h2>
<p>Using x.NEGATIVE_INFINITY, where x is a variable, returns undefined:</p>
<p id="demo"></p>
<script>
let x = 100;
document.getElementById("demo").innerHTML = x.NEGATIVE_INFINITY;
</script>
</body>
</html>