IsNull
This method checks whether the value of a given property is NULL. If that is the case, the method returns TRUE, otherwise it returns FALSE.
Syntax
METHOD IsNull : BOOL
VAR_INPUT
v : SJsonValue;
END_VAR
Return value
Name | Type |
|---|---|
IsNull | BOOL |
Inputs
Name | Type |
|---|---|
v | SJsonValue (note possible invalidity) |