Hi! I'd like to propose adding a 3rd optional argument to Enum.uniq_by
function, which will decide which one of the duplicated values should be
kept. This function will accept 2 values and return one of them, that
should be kept.
Example:
Enum.uniq_by(
[a: 1, a: 2],
fn {k, v} -> k end,
fn {_, v_a} = a, {_, v_b} = b ->
if v_a >= v_b, do: a, else: b
end
)
=> [a: 2]
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