Validates that a value is a list.

Optional Options

• :message - Custom error message callback (value -> String.t())

Examples

iex> Funx.Validator.List.validate([1, 2, 3])
%Funx.Monad.Either.Right{right: [1, 2, 3]}

iex> Funx.Validator.List.validate([])
%Funx.Monad.Either.Right{right: []}

iex> Funx.Validator.List.validate("not a list")
%Funx.Monad.Either.Left{left: %Funx.Errors.ValidationError{errors: ["must be a list"]}}