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Description | ||||||||
Utilities for working with the Either data type Copyright (c) 2004 John Goerzen, jgoerzen@complete.org | ||||||||
Synopsis | ||||||||
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Documentation | ||||||||
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Pulls a Just value out of a Maybe value. If the Maybe value is Nothing, raises an exception with error. | ||||||||
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Like forceMaybe, but lets you customize the error message raised if Nothing is supplied. | ||||||||
Produced by Haddock version 2.6.0 |