Javascript Tutorial For Beginners LearnCode.academy #3

<!DOCTYPE html>
<html class="no-js">
<html>
	<head>
		<meta charset="utf-8">
		<title>Javascript</title>
		<meta name="description" content="">
		<meta name="viewport" content="width=device-width">
		<link rel="stylesheet" href="bower_components/bootstrap/dist/css/bootstrap.css"/>
		<link rel="stylesheet" href="styles/main.css">
	</head>

	<body>
		<div class="container">
			<div class="jumbotron">
				<h1>Let's Learn Javascript!</h1>
				<p class="lead">...cause Javascript ROCKS.</p>
			</div>

		</div>
		<script src="scripts/main.js"></script>
	</body>
</html>
<!-- It's always good to put the script before the body so that it creates a much faster feeling webpage. -->
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/*
function go(name, age)
{
	alert(name);
	alert(age);
}

go('Sammy', 17);
*/

/*
When I enter whatever I do in the prompt, that's the return value I give to name
So what happened was prompt had a return value that name recieved
var name = prompt();
*/

/*
function add(first, second)
{
	return first + second;
}

alert(add(1, 2));
*/

/*
function go(name, age)
{
	if(age < 20)
	{
		return name + '!';
	}
	else
	{
		return name;
	}
}

alert(go('Will', 17));
*/

/*
this variable is undefined since it has no value
var a;
alert (a);

every function is going to be undefined unless you give it a return value
function go()
{
	var name = "Sam";
}
alert(go());
*/


/** NOTES **/
// Functions in Javascript: piece of code that does one or more actions
// Arguments are useful because they make var's reusable
/*
Dry code is the best way to code because you don't code as much
as possible and the motto for it is: DRY, Don't Repeat Yourself
*/
// Functions return values as well
// alert() is essentially like a print statment
// when you call the function print() it brings you to your print screen on your webpage
/*
Once you return something in a function, it marks the end of the function
so if you try to put anything after it'll be ignored
*/
/*
There is something in Javascript called undefined, so when something is an
undefined type (something being a variable or function), it means that either
the variable has no value or that the function has no return
*/
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