variable.html

<!DOCTYPE HTML>
<html>
<head>
<title>Varibles</title>
</head>
<body>
<h1>Variables</h1>

<script>
//Write javascript between here..

var aVariable = "hello I am a String";

var yetAnotherVarible = 3.5;

//Do we need the var for variable assigment to work

itWorks = "Why do we need the var keyword?";

//apparently not!

alert (itWorks);

/*If you're in the global scope then you do not need the var keyword.
However: 
If you're in a function then "var" will create a local variable,
 "no var" will look up the scope chain until it finds the variable
 or hits the global scope (at which point it will create it):

*/

function myFunction () {

    itWorks = "Confusing!";
}

myFunction();
alert (itWorks);

// This is confusing ... I would argue, just use the var keyword as a habit to avoid conusion. 


//..and here.
</script> 
</body>
</html>