Returns TRUE or FALSE depending on whether specified function exists.
Number | Type | Compulsory | Default | Description |
---|---|---|---|---|
1 |
string |
Yes |
|
Function name |
2 |
string |
No |
'global' |
Function type |
Function name.
Either 'global' or 'script'. If 'global', arg 1 is assumed to be the name of a built in function. If 'script' arg 1 is assumed to be a function defined as a script and installed using the command RegisterUserFunction.
User defined compiled functions linked in as a DLL are treated as 'global'.
Return type: real
|