Javascript Function

Javascript-fucntion.js

	// Javascript Funciton

	function demo() {
		var firstName = 'Humayun';
		var lastName = 'Ahmed';
		var fullName = firstName+' '+lastName;
		document.write(fullName);
	}

	demo();

  // Change Function Data

	function demo(firstName, lastName){
		var fullName = firstName+' '+lastName;
		document.write(fullName);
	}


	demo('Humayun', 'Ahmed');
	document.write('<br/>================<br/>');
	demo('Rasel', 'Ahmed');
	document.write('<br/>================<br/>');
	demo('Humayara', 'Jannat');
	document.write('<br/>================<br/>');