====== < var > ======

===== Description =====

The <var> element declares a variable in the scope of its parent element.  If the variable is already defined in the current scope, further declaration is treated as value assignments.

===== Syntax =====

<code>
<var
name="String"
expr="ECMAScript_Expression"/>
</code>

===== Attributes =====

|name|The name attribute defines the name of the variable. This attribute is required.|
|expr|The expr attribute is the initial value of the variable. This attribute is optional and defaults to undefined.|

===== Parents =====

<code>
<block>, <catch>, <error>, <filled>, <form>, <help>, <if>, <noinput>, <nomatch>, <vxml>
</code>

===== Children =====

<code>
None.
</code>

===== Extensions =====

<code>
None.
</code>

===== Limitations/Restrictions =====

<code>
None.
</code>

===== Example Code =====

<code>
<?xml version="1.0"?>
<vxml version="2.0" xmlns="http://www.w3.org/2001/vxml">
 <var name="world" expr="'world'"/>
 <form>
  <field name="hello">
   <grammar>hello | goodbye</grammar>
   <help>Just say hello</prompt>
   <prompt>Say hello</prompt>
   <noinput>Say something</noinput>
   <filled>
    <prompt>Hello, 
     <value expr="world"/>!
    </prompt>
   </filled>
  </field>
 </form>
</vxml>
</code>