Re: [Haskell-cafe] [Maybe Int] sans Nothings

On 5/23/11 9:29 AM, Max Bolingbroke wrote:

On 23 May 2011 17:20, michael rice mailto:nowgate@yahoo.com> wrote:

What's the best way to end up with a list composed of only the Just values, no Nothings?

http://haskell.org/hoogle/?hoogle=%3A%3A+%5BMaybe+a%5D+-%3E+%5Ba%5D

Data.Maybe.catMaybes is what you want :-)

Cheers, Max

On 5/23/11 9:25 AM, Malcolm Wallace wrote:

On 23 May 2011, at 17:20, michael rice wrote:

...

What's the best way to end up with a list composed of only the Just values, no Nothings? Go to haskell.org/hoogle Type in "[Maybe a] -> [a]" Click on first result.

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On 5/23/11 9:25 AM, Gregory Crosswhite wrote:

On 5/23/11 9:20 AM, michael rice wrote:

...

What's the best way to end up with a list composed of only the Just values, no Nothings?

Try catMaybes in Data.Maybe.

Cheers, Greg

GO TEAM HASKELL!!! Cheers, Greg