The extend()
method appends to the existing array and returns None
. In your case, you are creating an array — [4, 5, 6]
— on the fly, extending it and then discarding it. The variable b
ends up with the return value of None
.
The extend()
method appends to the existing array and returns None
. In your case, you are creating an array — [4, 5, 6]
— on the fly, extending it and then discarding it. The variable b
ends up with the return value of None
.