flatMap
Opened this issue · 2 comments
innermatrix commented
Please explain the feature or improvement you would like:
Please add async flatMap
Please describe the use case where you would need that feature (the general situation or type of program where that would be helpful):
Currently the best counterpart to
arr.flatMap((elt) => f(elt))
is
(await asyncMap(arr, async (elt) => await f(elt))).flatMap(elt => elt)
Which is janky. I would prefer
await asyncFlatMap(arr, async (elt) => await f(elt))
Please explain why you think that feature would be helpful to other people:
Because flatMap
is in stdlib Array
nicolas-van commented
Actually you should also be able to call
await asyncMap(arr, async (elt) => await f(elt)).flat()
which is a bit shorter.
But yes, it is true that we could provide a shorthand with asyncFlatMap
.
innermatrix commented
Good point 🤦 but yes please