WMLScript » Statements » var

Syntax:
var

The var statement is used to create a named variable. This refered to as initializing the variable. At the same time you can also set a value (including the empty string) for the variable, or, by default, allow the variable to assume the value of the empty string "" and assign a value at a later time. Indeed, after a variable has been created, you can change its value whenever you wish and as many times as you wish.

A named variable is said to have a scope. By scope, we mean where the named variable will be recognized by the program. In WMLS, the scope of a variable is limited to inside the function in which the var is declared. However, you can use the WMLBrowser.setVar function to set a named variable with a value that can be displayed in a .wml program.

The name of the variable is a string that is composed of characters that are legally recognized by WMLS. The name must be unique within the function. Clearly you can not use the names of the WMLScript libray functions, operators, or statements as a variable name since they are considered reserved words.

Examples

Code:
<?xml version="1.0"?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN"
"http://www.WAPforum.org/DTD/wml_1.1.xml">
<wml>

<card id="card1">
   <p>
   for example
   </p>
   <do type="accept">
      <go href="ForExample.wmls#findfor()" />
   </do>
</card>

<card id="card2">
<p>
   $(str)
</p>
</card>

</wml>
Explanation:

Code for ForExample.wml

Language(s): WML
Code:
extern function findfor()
{
   var boo;
   var hoo = "";
   var myfavoritenum = 95;
   var a=10.0;
   var b=34.8*a;
   var name = "Fred";
   for(var count=0; count<99; count++;)
   var str = "My pet jaguar is named Oztotl.";
   WMLBrowser.setVar("str" str);
   WMLBrowser.go("ForExample.wml#card2");
};
Explanation:

Code for ForExample.wmls

Language(s): WML

See Also: