The ListFind and ListFindNoCase functions are very handy in ColdFusion.

The ListFind function takes up to 3 arguments:

ListFind(list, value, [delimiter])

The default delimiter for all list functions in ColdFusion is a comma.

Here's a simple example of using ListFind:

ListFind("jpg,gif,png", "gif")

The above code would return 2. The ListFind function will return 0 if the value is not found in the list.