<assign>

Assigns a value to a variable.

Syntax

Attributes

Attribute	Data Type	Required?	Default	Description
expr	PCDATA	yes	NA	ECMAScript expression to evaluate and assign to the named variable.
name	identifier	yes	NA	Name of the variable. This must be a legal ECMAScript identifier. By default, the variable is resolved within the closest enclosing scope of the currently active element. To remove ambiguity, prefix the variable name with a scope name.

Details

You must explicitly declare a variable using a <var> element or <var> statement within a <script> element. Attempting to assign a value to an undeclared variable causes the VoiceXML Interpreter to return an error.semantic error.

Parents

Children

None.

Example

<?xml version="1.0"?>
<vxml version="2.1" xmlns="http://www.w3.org/2001/vxml">
<var name="number"/>
<var name="month" expr="'March'"/>
    <form>
        <block>
            Month is <value expr="month"/>
            <assign name="month" expr="'July'"/>
            Now month is <value expr="month"/>
            <assign name="number" expr="2*5"/>
            Number is <value expr="number"/>
        </block>
    </form>
</vxml>