CallXML 2.0 Development Guide

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This documentation is for CallXML 2, which has been superceded by CallXML 3. The CallXML 2 language is not being updated any longer. CallXML 3, however, has many new features and is actively being enhanced. If you're writing a new CallXML application, you should use CallXML 3. Click here for the CallXML 3.0 documentation.

<clear> element

Clears variable specified by the attribute var. As show below, will clear a variable named "MyVar". Effectively this works the same as <assign var="MyVar" value="" />

usage

attributes

var	Data Type: (variable name)	Default: none - attribute is required
	The var attribute defines the name of the variable to set to an undefined state.

possible events

onerror type="document"

Document was unable to be fetched for all the reasons web servers are unavailable

code samples

<?xml version="1.0" encoding="UTF-8"?>

<callxml version="2.0">
<block label="B1">
<assign var="MyVar" value="Buttafuocco"/>
<text>
Our starting variable value is $MyVar;
</text>

<clear var="MyVar"/>
</block>

<block label="B2">
<text>
But now, since we have cleared it, the value is $MyVar;
</text>
</block>
</callxml>

additional links

none

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