JavaScript Variables

    javascript variables

1.       Variables are used to storing data.

2.       A variable name can have alpha numeric characters and under score

3.       A variable name should start with letter o r underscore

4.       No space is allowed between the characters of a varialbe name.

5.       A variable name sshouldnot be a reserve keyword of javascript.

6.       Var script is used for declaring a variable name.

Var first_name

Var last_name

Var _age

Php                                                                                            java script

<?php                                                                      <script type=”text/javascript”>

$a=10;                                                                       var a=10;

$b=”india”;                                                              var b=”india”;

$c=$a+$b;                                                                 var c=a+b;

Echo  $c;                                                                   document.write(c);

?>                                                                                </script>

Output=10                                                             output=10india