[Haskell-cafe] Best way to return Bool based on a successful pattern match?

Silvio Frischknecht silvio.frischi at gmail.com
Mon Jul 13 16:53:26 UTC 2015

> http://www.extremeprogramming.org/rules/simple.html ;-) So IMHO a
> simple, old-skool '\x -> case x of Left _ -> True; _ -> False' (probably
> item 2.5 in the list above) is by far the "best" way: It doesn't use any
> kind of extension, it doesn't pull in a dozen of packages for a trivial
> task, and is readable by anyone. My personal experience is that things
> which look very clever and advanced (like using meta/reflection
> facilities) only increase the WTF factor in the long run. Those
> facilities have their uses, but they come with a heavy cost which must
> be justified somehow. Boring code is good code! :-D

+1 for readability

That's the problem with Haskell. You can do things in so many beautiful
and wondrous ways that you tend to get lost very easily.

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