PassiveSupport.Map.take-exclamation-mark
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Link to this function
take!(map, keys \\ [])
Specs
Returns a copy of map containing only keys and raises
if any are missing.
If keys are not provided, returns map unchanged
Examples
iex> take!(%{a: "foo", b: 42, c: :ok}, [:b, :c])
%{b: 42, c: :ok}
iex> take!(%{a: "foo", b: 42})
%{a: "foo", b: 42}
iex> take!(%{"a" => "foo", "b" => 42, "c" => :ok}, ["c", "e"])
** (PassiveSupport.KeysNotFound) Expected to find keys ["c", "e"] but only found keys ["c"]