fibonacci.html

<script type = "text/javascript"> 
function fibonacci(n) 
{ 
	if (n > 2) 
		return fibonacci(n-2) + fibonacci(n-1);
	if (n == 2 || n == 1) 
		return 1;
	return 0;
} 

var start = new Date();
var result = fibonacci(30)
var time = new Date() - start;
document.write("Fibonacci(30): "+result+"<br>"); 
document.write("Duration: "+time+"ms <br>"); 
</script> 

SImple JS-Demonstration to calculate a fibonacci-number using recursion using JavaScript.