<@U5VSX7K4L> tbh I’m looking for both, something l...

# getting-started

[kef]

@ibcoleman tbh I’m looking for both, something like:

a.groupByKey{(x,y) -> x+y}

where x and y are values from pairs with identical keys,
but I understand there is no such method in std library

[ilya.gorbunov]

And also there is no such thing as "key" of the pair.

[kristofdho]

seems just like a really obscure way to perform folds

[kef]

Thx, I took this assumption from hadoop’s map/reduce flow, where you can treat first element of a pair as a key

[ibcoleman]

@ilya.gorbunov that groupingBy is pretty cool. don’t think I’ve seen that one before…