2.5.4.55 IsError
The IsError function calculates if the operand is a PtgErr.
ABNF:
-
IsError = val " ISERROR():128"
Required Arguments:
Name: Token
Type: vAny
An argument that specifies the operand of the calculation.
Return Value:
Type: PtgBool
This function returns a PtgBool with a value of TRUE if Token is a PtgErr, and a value of FALSE otherwise.