assign

assign element

Assigns a value to a variable.

Syntax

<assign 
expr = "ECMAScript_Expression"
name = "string"
/>

Attributes

expr	Required. The value to assign to the variable.
name	Required. The name of the variable.

Parents

block, catch, error, filled, foreach, help, if, noinput, nomatch, prompt

Children

None.

Remarks

Before using the assign element on a variable, you must first declare it using the var element.

If this value is a string, you must enclose it in single quotation marks.

Examples

The following example declares four variables at document scope, uses the assign element to calculate the cost of a product, and plays the information back to the user in a sentence.

<?xml version="1.0"?>
<vxml version="2.1"
 xmlns="http://www.w3.org/2001/vxml">
   <!--document-scoped variables -->
   <var name="product" expr="'windbreaker'"/>
   <var name="retail_price" expr="135"/> 
   <var name="discount" expr=".35"/> 
   <var name="cost"/>  

   <form id="check_price">
      <block>  
         <assign name="cost" expr="retail_price*discount"/>  
         <prompt>With a <value expr="discount*100"/> percent discount, 
         the cost of the <value expr="product"/> is <value expr="cost"/></prompt>  
      </block> 
   </form>
</vxml>