Why Enum.filter_map is deprecated?

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8

Here is an example of using comprehension in lieu of Enum.filter_map/3:

# filter even numbers
filter_fn = fn n ->
  rem(n, 2) == 0
end

# double
map_fn = fn n ->
  n * 2
end

some_enum = 1..20

# filter_map version
Enum.filter_map(some_enum, filter_fn, map_fn)

# comprehension version
for n <- some_enum, filter_fn.(n), do: map_fn.(n)
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