Railo 4.2 Reference
Choose a function:

Function ISCUSTOMFUNCTION

Determines whether a name represents a custom function

Example

iscustomfunction(any name):boolean

Arguments

The arguments for this function are set. You can not use other arguments except the following ones.
Name Type Required Description
name any  Yes Name of a custom function. Must not be in quotation marks. If not a defined variable or function name, Railo generates an error.