<if>

Executes actions conditionally.

Syntax

 <if
     cond="js_expression"
 >
   Executable Content
 </if>

Description

Attribute Description

cond
JavaScript expression that evaluates to a boolean value that must be true for the "if" clause to execute. Optional (default is true).

Usage

Parents Children

<bevocal:foreach> <block> <catch> <error> <filled> <help> <if> <noinput> <nomatch> <audio> <assign> <bevocal:connect> <bevocal:dial> <bevocal:disconnect> <bevocal:foreach> <bevocal:hold> <bevocal:whisper> <clear> <data> <disconnect> <else> <elseif> <enumerate> <exit> <goto> <if> <log> <prompt> <reprompt> <rethrow> <return> <script> <send> <subdialog> <submit> <throw> <var> <value>

Tip:

•	If a JavaScript expression contains any of the characters "`<`", "`>`", or "`&`", that character must be replaced with the corresponding escape sequence "`<`", "`>`", or "`&`". For more information, see JavaScript Quick Reference.

See Also

•	VoiceXML 2.0 Specification: `<if>`
•	Related tags: `<else>`, `<elseif>`

Examples

 <?xml version="1.0" ?>
 <!DOCTYPE vxml PUBLIC "-//BeVocal Inc//VoiceXML 2.0//EN"
  "http://cafe.bevocal.com/libraries/dtd/vxml2-0-bevocal.dtd">
 
 <vxml version="2.0" xmlns="http://www.w3.org/2001/vxml">
   <form id="form">
     <field name="hello">
       <grammar type="application/x-nuance-gsl">
         [one dtmf-1 goodbye]
       </grammar>
       <prompt>Say one or press one to continue or say goodbye to exit.</prompt>
       <nomatch>Sorry, I did not get it.<reprompt/></nomatch>
       <filled>
         <if cond="hello=='one' || hello=='dtmf-1'">
           <prompt> Welcome to this part of the world. </prompt>
         <else/> 
           <prompt> Sorry you could not have much fun. Goodbye </prompt>
         </if>
       </filled>
     </field>
   </form>
 </vxml>

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Attribute	Description
`cond`	JavaScript expression that evaluates to a boolean value that must be `true` for the "if" clause to execute. Optional (default is `true`).

Parents	Children
`<bevocal:foreach>` `<block>` `<catch>` `<error>` `<filled>` `<help>` `<if>` `<noinput>` `<nomatch>`	`<audio>` `<assign>` `<bevocal:connect>` `<bevocal:dial>` `<bevocal:disconnect>` `<bevocal:foreach>` `<bevocal:hold>` `<bevocal:whisper>` `<clear>` `<data>` `<disconnect>` `<else>` `<elseif>` `<enumerate>` `<exit>` `<goto>` `<if>` `<log>` `<prompt>` `<reprompt>` `<rethrow>` `<return>` `<script>` `<send>` `<subdialog>` `<submit>` `<throw>` `<var>` `<value>`