Mercurial > urweb
view tests/optionM.ur @ 2185:cbd294994c69
Monad.mapR3
author | Adam Chlipala <adam@chlipala.net> |
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date | Sat, 31 Oct 2015 11:49:30 -0400 |
parents | a99b743a3087 |
children |
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fun main () : transaction page = return <xml>{[x <- Some 1; y <- Some 2; return (x + y)]}</xml>