Contents

module Isogram (isIsogram) where

import Data.Char (toLower, isLetter)
import Data.List (sort, group)

isIsogram :: String -> Bool
isIsogram = all ((1==) . length) . group . sort . filter isLetter . map toLower

Version data entries

143 entries across 143 versions & 1 rubygems

Version	Path
trackler-2.2.1.180	tracks/haskell/exercises/isogram/examples/success-standard/src/Isogram.hs
trackler-2.2.1.179	tracks/haskell/exercises/isogram/examples/success-standard/src/Isogram.hs
trackler-2.2.1.178	tracks/haskell/exercises/isogram/examples/success-standard/src/Isogram.hs
trackler-2.2.1.177	tracks/haskell/exercises/isogram/examples/success-standard/src/Isogram.hs
trackler-2.2.1.176	tracks/haskell/exercises/isogram/examples/success-standard/src/Isogram.hs
trackler-2.2.1.175	tracks/haskell/exercises/isogram/examples/success-standard/src/Isogram.hs
trackler-2.2.1.174	tracks/haskell/exercises/isogram/examples/success-standard/src/Isogram.hs
trackler-2.2.1.173	tracks/haskell/exercises/isogram/examples/success-standard/src/Isogram.hs
trackler-2.2.1.172	tracks/haskell/exercises/isogram/examples/success-standard/src/Isogram.hs
trackler-2.2.1.171	tracks/haskell/exercises/isogram/examples/success-standard/src/Isogram.hs
trackler-2.2.1.170	tracks/haskell/exercises/isogram/examples/success-standard/src/Isogram.hs
trackler-2.2.1.169	tracks/haskell/exercises/isogram/examples/success-standard/src/Isogram.hs
trackler-2.2.1.167	tracks/haskell/exercises/isogram/examples/success-standard/src/Isogram.hs
trackler-2.2.1.166	tracks/haskell/exercises/isogram/examples/success-standard/src/Isogram.hs
trackler-2.2.1.165	tracks/haskell/exercises/isogram/examples/success-standard/src/Isogram.hs
trackler-2.2.1.164	tracks/haskell/exercises/isogram/examples/success-standard/src/Isogram.hs
trackler-2.2.1.163	tracks/haskell/exercises/isogram/examples/success-standard/src/Isogram.hs
trackler-2.2.1.162	tracks/haskell/exercises/isogram/examples/success-standard/src/Isogram.hs
trackler-2.2.1.161	tracks/haskell/exercises/isogram/examples/success-standard/src/Isogram.hs
trackler-2.2.1.160	tracks/haskell/exercises/isogram/examples/success-standard/src/Isogram.hs