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<oerjan> learn isJust is just a Haskell function to check if a value is Just.
author HackBot
date Fri, 22 Jul 2016 16:32:56 +0000
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children 575e46a47bd9
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wisdom/isjust	Fri Jul 22 16:32:56 2016 +0000
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+isJust is just a Haskell function to check if a value is Just.