[Haskell-beginners] Common Method for [Maybe a] -> [a]

Tony Morris tonymorris at gmail.com
Fri May 3 06:30:18 UTC 2019


Also in general form.

https://hackage.haskell.org/package/witherable-0.3/docs/Data-Witherable.html#v:catMaybes

On 1/5/19 10:56 pm, Francesco Ariis wrote:
> Hello Leonard,
>
> On Wed, May 01, 2019 at 11:04:46AM +0000, Leonhard Applis wrote:
>> I've got a method:
>>
>> demaybefy  :: [Maybe  a] -> [a]
>> [...]
>>
>>
>> However, i feel that there is a method from preload/list/maybe that
>> does exactly the same, but i cannot find it.
>> Can someone help me?
> Simon already gave the right answer; never forget that for question like
> this, Hoogle is phenomenal! Just write in the sought signature and voila:
>
>     https://hoogle.haskell.org/?hoogle=%5BMaybe%20a%5D%20-%3E%20%5Ba%5D
> _______________________________________________
> Beginners mailing list
> Beginners at haskell.org
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