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No documentation available.
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Extend Maybe by common operations for the Maybe type. Note: since this module is usually imported unqualified, we do not use short names, but all names contain Maybe, Just, or 'Nothing.
module Configuration.Utils.
Maybe This module provides tools for defining Maybe configuration types.
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dimensional Numeric.Units.Dimensional.Prelude The Maybe type encapsulates an optional value. A value of type Maybe a either contains a value of type a (represented as Just a), or it is empty (represented as Nothing). Using Maybe is a good way to deal with errors or exceptional cases without resorting to drastic measures such as error. The Maybe type is also a monad. It is a simple kind of error monad, where all errors are represented by Nothing. A richer error monad can be built using the Either type.
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distribution-opensuse OpenSuse.Prelude The Maybe type encapsulates an optional value. A value of type Maybe a either contains a value of type a (represented as Just a), or it is empty (represented as Nothing). Using Maybe is a good way to deal with errors or exceptional cases without resorting to drastic measures such as error. The Maybe type is also a monad. It is a simple kind of error monad, where all errors are represented by Nothing. A richer error monad can be built using the Either type.
module Control.Monad.Trans.MSF.
Maybe The Maybe monad is very versatile. It can stand for default arguments, for absent values, and for (nondescript) exceptions. The latter viewpoint is most natural in the context of MSFs.
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faktory Faktory.Prelude The Maybe type encapsulates an optional value. A value of type Maybe a either contains a value of type a (represented as Just a), or it is empty (represented as Nothing). Using Maybe is a good way to deal with errors or exceptional cases without resorting to drastic measures such as error. The Maybe type is also a monad. It is a simple kind of error monad, where all errors are represented by Nothing. A richer error monad can be built using the Either type.
module Grisette.Lib.Data.
Maybe No documentation available.
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Bidirectional version of Data.Maybe.