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| -rw-r--r-- | src/gleam/list.gleam | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/gleam/list.gleam b/src/gleam/list.gleam index 5f116c3..dcea121 100644 --- a/src/gleam/list.gleam +++ b/src/gleam/list.gleam @@ -1565,6 +1565,16 @@ pub fn each(list: List(a), f: fn(a) -> b) -> Nil { } } +/// A variant of each that might fail. +/// +/// Takes a function that returns a result and tries to calls it for each element in a list. +/// If the returned value is `Ok(new_value)`, try_each will discard the return value and call +/// the function on the next element of the list. +/// If the returned value is `Error(error)`, try_each will stop and return Nil. +pub fn try_each(over list: List(a), with fun: fn(a) -> Result(b, c)) -> Nil { + todo +} + fn do_partition(list, categorise, trues, falses) { case list { [] -> #(reverse(trues), reverse(falses)) |