JavaScript-Course/3.13_number_methods.html at main · haseeb318/JavaScript-Course · GitHub

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<!DOCTYPE html>
<html>
<head>
	<title>Number Methods</title>
	<style type="text/css">
		h3{text-align: center;}
	</style>
</head>
<body>
	<script type="text/javascript">

		var a = 2;
		var b = 5;

		document.writeln("<h3>Number Methods</h3>")
		document.writeln("<h4>isFinite : </h4>");
		document.writeln("is 2 a finite? : " + Number.isFinite(2));
		document.writeln("<br>is h a finite? : " + Number.isFinite("h"));
		document.writeln("<br>is -5 a finite? : " + Number.isFinite(-5));
		document.writeln("<br>is NaN a finite? : " + Number.isFinite(NaN));
		document.writeln("<br>is (0,10) a finite? : " + Number.isFinite((0,10)));
		document.writeln("<br>is (10,0) a finite? : " + Number.isFinite((10,0)));

		document.writeln("<h4>isInteger : </h4>");
		document.writeln("is 2 an Integer? : " + Number.isInteger(2));
		document.writeln("<br>is 2.56 an Integer? : " + Number.isInteger(2.56));
		document.writeln("<br>is infinity an Integer? : " + Number.isInteger(Infinity));
		document.writeln("<br>is -infinity an Integer? : " + Number.isInteger(-Infinity));
		document.writeln("<br>is NaN an Integer? : " + Number.isInteger(NaN));

		document.writeln("<h4>parseFloat : </h4>");
		document.writeln("Convert '85' to Float 85 : " + Number.parseFloat("85"));
		document.writeln("<br>Convert 'Hello' to Float : " + Number.parseFloat("Hello"));
		document.writeln("<br>Convert '55Hello' to Float : " + Number.parseFloat("55Hello"));

		document.writeln("<h4>parseInt : </h4>");
		document.writeln("Convert '85' to Int 85 : " + Number.parseInt("85"));
		document.writeln("<br>Convert 'Hello' to Int : " + Number.parseInt("Hello"));
		document.writeln("<br>Convert '55Hello' to Int : " + Number.parseInt("Hello"));

		document.writeln("<h4>toExponential : </h4>");
		document.writeln("Convert '2' to Exponential Number with base 2 : " + a.toExponential(2));
		document.writeln("<br>Convert '2' to Exponential Number with base 5 : " + b.toExponential(2));

		document.writeln("<h4>toFixed : </h4>");
		document.writeln("value of PI is : " + Math.PI.toFixed(2));

		document.writeln("<h4>toPrecision : </h4>");
		document.writeln("value of PI is in string : " + Math.PI.toPrecision(3));

		document.writeln("<h4>toString : </h4>");
		document.writeln("value of '2' in string : " + a.toString());
	</script>
</body>
</html>