developer_guide:voicexml_references:elements:var

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developer_guide:voicexml_references:elements:var [2015/10/27 21:47] (current)
borja created
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 +====== < 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>
  • developer_guide/voicexml_references/elements/var.txt
  • Last modified: 2015/10/27 21:47
  • by borja