Logging with XSLT

Question

How and where could I output log messages for debug and performance purposes during an XSLT transformation?

I guess the simplest method is using express

Answer 1

I would suggest using xsl:message if you are in a development environment such as oXygen or Stylus Studio, and using xsl:comment if you are running in the browser. You shouldn't really be debugging your XSLT code in the browser - the browsers I know about are lousy as XSLT debugging tools.