forked from potsda.mn/mobilizon
34 lines
668 B
Elixir
34 lines
668 B
Elixir
defmodule Mobilizon.Service.Guards do
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@moduledoc """
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Various guards
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"""
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@doc """
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Returns `true` if `term` is a valid string and not empty.
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## Examples
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iex> is_valid_string("one")
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true
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iex> is_valid_string("")
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false
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iex> is_valid_string(2)
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false
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"""
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defguard is_valid_string(term) when is_binary(term) and term != ""
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@doc """
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Returns `true` if `term` is a valid list and not empty.
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## Examples
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iex> is_valid_list(["one"])
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true
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iex> is_valid_list([])
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false
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iex> is_valid_list("foo")
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false
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"""
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defguard is_valid_list(term) when is_list(term) and length(term) > 0
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end
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