The <log> element allows an application to generate a logging or debug message, which a developer can use to help in application development or post-execution analysis of application performance.


label A string used to give the log entry a label.
expr An ECMAscript expression evaluating to a string.


The contents of the log tag will be written straight into the standard logs as a "debugging" message. Verbose logging must be turned on in order to view these messages.


<?xml version="1.0"?>
<vxml version="2.0">
    <field type="digits" name="f1">
        Please say or enter some digits.
        <log label="mylog">My log says <value expr="f1"/></log>

The output of the above script would be:

Computer: Please say or enter some digits.
Human: One two three four five six seven eight nine.
The following entry would then be added to the log:
Tue 19 Nov 2002 03:24:07 PM EST (000000;001;1037737318) [mylog] LOCAL: My log says 123456789

Child Tags


Parent Tags

<block>, <catch>, <error>, <filled>, <foreach>, <help>, <if>, <noinput>, <nomatch>