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<!DOCTYPE html>
<html>
<body>
<h1>JavScript Bigint</h1>
<p>A BigInt can not have decimals.</p>
<p id="demo"></p>
<p>You cannot perform math between a BigInt type and a Number type.</p>
<script>
let x = BigInt("123456789012345678901234567890");
document.getElementById("demo").innerHTML = x; 
</script>
</body>
</html>