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Sumedha Endar
Courses Plus Student 1,933 PointsNeed help to solve the python code challenge task 4 of 4 of slice function !
I didn't manage to get it
def first_4(iterable):
return iterable[:4]
def first_and_last_4(iterable):
return iterable[:4] + iterable[-4:]
def odds(iterable):
return iterable[1::2]
def reverse_evens(iterable):
return iterable[-2::-2]
2 Answers
Steven Parker
231,269 PointsYou're close, but missing something.
Since you don't know the length of the iterable you are slicing, you can't be sure that item 2 from the right (the -2 position) has an even-numbered index.
You could possibly compute the position to start from based on the length of the iterable, or you could make a forward slice to select the right items and then re-slice that to reverse the order.
Emerson Rubio
18,024 PointsHello, what I did was take the iterable and slice it into a new list of just the numbers in an even index then I reversed this new list.
Steven Parker
231,269 PointsGlad I could help! I knew my 2nd suggestion would be the easiest to implement.