JavaScript variables and operations

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<script type="text/javascript">

var x=100;

function ejemplo()

{

var y=2;

document.write (X);

}

</script>

</head>

<body>


document.write (x +"<br />");

ejemplo();

</script>

</body>

</html>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />

<title>Documento sin título</title>

</head>

<body>


var x , y , z;

var suma, resta, multi, division, residuo, varios;

x = 80; y = 60;z = 15;

</body>

</html>

suma= x + y;

sumaneg=-suma

resta= x - y;

multi= x * y;

division= x / y,

residuo= x % y;

varios = (x + z) * y;

document.write ("X vale: " + x + "<br />");

document.write ("Y vale: " + Y + "<br />");

document.write ("Z vale: " + Z + "<br />");

document.write ("La suma es " + suma + "<br />");

document.write ("La resta es " + resta + "<br />");

document.write ("La multuiplicacion es " + multi+ "<br />");

document.write ("La residuo es " + residuo + "<br />");

document.write ("La resultado es " + varios + "<br />");

</script>

JavaScript variables and operations

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