<value>

Description

Used to insert the value of an expression into a prompt.

Syntax

<value
    expr="ECMAScript_Expression"/>

Attributes

Parents

<audio>, <block>, <catch>, <choice>, <enumerate>, <error>, <field>, <filled>, <foreach>, <help>, <if>, <initial>, <log>, <menu>, <noinput>, <nomatch>, <object>, <prompt>, <record>, <subdialog>, <transfer>, Speech Markup (SSML)

Children

None.

Extensions

None.

Limitations/Restrictions

• When a <value> tag is used as a child of any of the SSML tags (e.g. <say-as>), the interpreter adds a space character before and after the <value> tag. For example, for the following VoiceXML snippet:
  
  <var name="color" expr="'red'"/>
...
This is a<value expr="color"/>cat.
  
  The sentence will be generated as: "This is a red cat." If the application developer wants to use the <value> tag without any spaces around it, they should write a javascript function to concatenate the evaluated <value> tag with the surrounding text.
  

Example

<?xml version="1.0"?>
<vxml version="2.0" xmlns="http://www.w3.org/2001/vxml">
  <var name="var1" expr="'first'"/>
  <form>
    <block>
      The initial value is <value expr="var1"/>.
    </block>
  </form>
</vxml>