Why the result of this is None?

Question

fd =[]
fd1 = fd.extend(["John", "M", 18])
print(fd1)

Answer 1

`extend` method works directly on the calling object (`list` object fd) and doesn't return a new (modified) `list` object . In Python, when a function/method doesn't explicitly return anything, a None object is returned.

The same goes for `append` method.
(Edited)

Answer 2

Yes, you got that right 👍

Answer 3

Ipang i see, that means I dont need fd1, just print fd after use the function, right?