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Python Python Collections (2016, retired 2019) Slices Slice Functions

Posted by Mathew Yangang
Mathew Yangang
4,433 Points

slices

i'm trying to return the first 4 and last 4 items from a function using slicing but can't get it correct

slices.py 
def first_4 (item):
    return item[:4]
def first_and_last_4(things):
    return things[4:4]

1 Answer

Steven Parker
Steven Parker
229,644 Points
Steven Parker
Steven Parker
229,644 Points

Here's a hint: you might need two slices to do this.

You've already created a function that gets the first four. Now think of how you would write one to get the last four instead. Then combine the two using concatenation.

Mathew Yangang
Mathew Yangang
4,433 Points

I got it now, thanks steve