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JavaScript code to find largest of three numbers

JavaScript code to find largest of three numbers

this tutorial provides you how to find largest number og given three numbers.

We have to find largest number by given three numbers using JavaScript.

Let's take an example:

<html>
	<head>
		<script>
			function largestnum()
			{
				var num1, num2, num3;
				num1 = Number(document.getElementById("N").value);
				num2 = Number(document.getElementById("M").value);
				num3 = Number(document.getElementById("O").value);

				if(num1>num2 && num1>num3)
				{
					window.alert(num1+"-is greatest");
				}
				else if(num2>num1 && num2>num3)
				{
					window.alert(num2+"-is greatst");
				}
				else if(num3>num1 && num3>num1)
				{
					window.alert(num3+"is greatest");
				}
			}
		</script>
	</head>
	<body>
		<h1>Check largest number </h1>
		<br>
		Enter number 1: <input type="text" id="N"></input><br>
		Enter number 2: <input type="text" id="M"></input><br>
		Enter number 3: <input type="text" id="O"></input><br>
<button onclick="largestnum()">submit</button>
	</body>
</html>
Output:

Check largest number


Enter number 1:
Enter number 2:
Enter number 3: