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A comment on Map/Reduce for Mortals. Parent comment

Re:Map/Reduce for Mortals by lgas on Tuesday January 14, 2020 @02:36PM (#22048411)
In actual Haskell I would write it as

    sum [ n^2 | n <- [1..5], n % 3 == 1 ]
which seems to express the idea fairly directly and I'm fairly sure has a close analog in python.
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Re:Map/Reduce for Mortals by lightsighter on Tuesday January 14, 2020 @03:28PM (#22048924)
python: sum([n * n for n in range(1,5,3)])
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Re:Map/Reduce for Mortals by marai2 on Tuesday January 14, 2020 @05:30PM (#22049904)
haskell: sum [n^2 | n <- [1,3..5]]

I just remembered haskell's "range" operator ".." can also take a step size.

['a', 'd' .. 'z'] => "adgjmpsvy"

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