JavaScript Variables

JavaScript variables are containers for storing data values. In this example, x, y, and z, are variables:

HTML file:	Displayed by browser:
<body> <h1>JavaScript Variables</h1> <p id="demo"></p> <script> var x = 5; var y = 6; var z = x + y; document.getElementById("demo").innerHTML = z; </script> </body>	JavaScript Variables

HTML file:

Displayed by browser:

<body>
<h1>JavaScript Variables</h1>
<p id="demo"></p>
<script>
   var x = 5;
   var y = 6;
   var z = x + y;
   document.getElementById("demo").innerHTML = z;
</script>
</body>

JavaScript Variables

Thus as indicated in the example above, you can expect that:

x stores the value 5
y stores the value 6
z stores the value 11