Created
May 8, 2011 19:25
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Analyzing Rebecca Black's "Friday" in Haskell
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| data Day = Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | Sunday | |
| deriving (Show, Enum) | |
| {-- | |
| *Main> let day = Friday -- It's Friday, Friday / Gotta get down on Friday | |
| *Main> pred day -- Yesterday was Thursday | |
| Thursday | |
| *Main> succ day -- Tomorrow is Saturday | |
| Saturday | |
| *Main> succ $ succ day -- And Sunday comes afterwards | |
| Sunday | |
| *Main> | |
| --} |
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