bool-extras: A fold function for Bool
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The bool function allows folding over boolean values.
This is comparable to the maybe or either functions
on their respective types.
The bool function is a replacement for the build-in
if then else-syntax. However, since it is a function, it
can be partially applied and passed around to higher order
functions, like so:
ghci> :m + Data.Bool.Extras ghci> let yesOrNo = bool "no" "yes" ghci> map yesOrNo [True, False, True] ["yes", "no", "yes"]
Note that the arguments to bool are in the opposite order
of the if then else-syntax; First the false value, then
the true value, and finally the boolean.
Properties
| Versions | 0.2.0, 0.3.0, 0.4.0, 0.4.0 |
|---|---|
| Change log | None available |
| Dependencies | base (>=3 && <5) [details] |
| License | BSD-3-Clause |
| Author | Erik Hesselink, Jeroen Leeuwestein, Tom Lokhorst, Sebastiaan Visser |
| Maintainer | Tom Lokhorst <tom@lokhorst.eu> |
| Category | Data |
| Home page | http://tom.lokhorst.eu/bool-extras |
| Uploaded | by TomLokhorst at 2014-04-04T12:58:22Z |
Modules
[Index]
- Data
- Bool
Downloads
- bool-extras-0.4.0.tar.gz [browse] (Cabal source package)
- Package description (as included in the package)
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