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lib/util/ext/enum.ex
defmodule Util.Ext.Enum do
@moduledoc false
def average([]) do
0
end
def average(enumerable) do
Float.floor(Enum.sum(enumerable) / Enum.count(enumerable))
end
def join(enumerable, char \\ " ") do
enumerable
|> Enum.filter(fn(x) -> Util.Ext.String.present?(x) end)
|> Enum.join(char)
end
end