Number functions

<!DOCTYPE html>
<html>
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<h2>JavaScript Number Methods</h2>

<p>The isInteger() method returns true if the argument is an integer.</p>
<p>Otherwise it returns false.</p>

<p id="demo"></p>

<script>
document.getElementById("demo").innerHTML =
Number.isInteger(10) + "<br>" + Number.isInteger(10.5);
</script>

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</html>

JavaScript Number Methods

The isInteger() method returns true if the argument is an integer.

Otherwise it returns false.