ghc-bool-extras

A fold function for Bool

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.

cloud_download Downloads