In this case, isn't any None
value from the Option
will cause the function return None
? But I want it just ignore the "issued" item. Like the check in the Python version:
if url and title:
yield ...
In this case, isn't any None
value from the Option
will cause the function return None
? But I want it just ignore the "issued" item. Like the check in the Python version:
if url and title:
yield ...