One of the new features I am excited to see in ColdFusion 9 is support for anonymous arrays. I’ve used these before in PHP, Perl, and other languages, and I’m glad to see them added to ColdFusion.

I blogged about this issue in 2007. I was trying to add a column to an existing array that I knew only had one row. QueryAddColumn() accepts an array of values to add to an existing query – one element for each row. So I only needed an array with one element. So I thought I could use CF8’s new inline array syntax and just pass it in like this:

<cfset QueryAddColumn(existingQuery,
                     ["single new value"])>

This would throw an error in CF8, but works just fine in CF9!

By the way this also works just fine in the current version of Railo.