JavaScript-Course/2.1_variable_34544 (1).html at main · haseeb318/JavaScript-Course · GitHub

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<!DOCTYPE html>
<html>
<head>
	<title>Example of Variable</title>
</head>
<body>

	<script type="text/javascript">

		var a = 10;
		var _a = "Hello";

		document.write(_a);

	</script>

	<br>

	<script type="text/javascript">

		var x = 10;
		var y = 20;
		var z = x+y;
		document.write(z);

		{
			let temp = "this is a temp variable";
			document.write("<br>");
			document.write(temp);
			document.write("<br>");
			document.write(z);
			document.write("<br>");
		}

		//document.write(temp);

		const constant = "This is a constant value";
		document.write(constant);
		//constant = "constant value is been changed";

		z = 50;

		document.write("<br>");
		document.write(z);

	</script>

</body>
</html>