22 lines
375 B
Elixir
22 lines
375 B
Elixir
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defmodule ListHelper do
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def list_len([]), do: 0
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def list_len([_ | tail]) do
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1 + list_len(tail)
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end
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def range(num, num), do: [num]
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def range(num1, num2) do
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[num1 | range(num1 + 1, num2)]
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end
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def positive([]), do: []
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def positive([head | tail]) when head > 0 do
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[head | positive(tail)]
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end
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def positive([_ | tail]), do: positive(tail)
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end
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