Mike George

Before the release of ColdFusion 5.0, developers had to add user-defined functionality to their applications through custom tags. Now they have the ability to create user-defined functions. In this article I'll demonstrate some of the similarities and differences between custom tags and user-defined functions in ColdFusion 5.0. Before we discuss user-defined functions, though, let's review what custom tags are. A ColdFusion custom tag is just a ColdFusion template that can be called within an application. Custom tags are useful for hiding code complexity and allowing other developers to use added functionality in their applications without having to understand the custom tag code. What Are User-Defined Functions? User-defined functions are similar to custom tags, in that they hide code complexity; however, user-defined functions are written between blocks.... (more)