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Contents
defmodule Accumulate do
@doc """
Given a list and a function, apply the function to each list item and
replace it with the function's return value.
Returns a list.
## Examples
iex> Accumulate.accumulate([], fn(x) -> x * 2 end)
[]
iex> Accumulate.accumulate([1, 2, 3], fn(x) -> x * 2 end)
[2, 4, 6]
"""
@spec accumulate(list, (any -> any)) :: list
def accumulate([], _fun) do
[]
end
def accumulate([head | tail], fun) do
[fun.(head) | accumulate(tail, fun)]
end
end
Version data entries
396 entries across 396 versions & 1 rubygems