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1. head :: HasCallStack => [a] -> a

   xmonad-contrib	XMonad.Prelude

   Extract the first element of a list, which must be non-empty. To disable the warning about partiality put {-# OPTIONS_GHC -Wno-x-partial -Wno-unrecognised-warning-flags #-} at the top of the file. To disable it throughout a package put the same options into ghc-options section of Cabal file. To disable it in GHCi put :set -Wno-x-partial -Wno-unrecognised-warning-flags into ~/.ghci config file. See also the migration guide.

   Examples

   >>> head [1, 2, 3]
   1
   

   >>> head [1..]
   1
   

   >>> head []
   *** Exception: Prelude.head: empty list
   

2. HEAD :: StdMethod

   http-types	Network.HTTP.Types

   No documentation available.

3. HEAD :: StdMethod

   http-types	Network.HTTP.Types.Method

   No documentation available.

4. HEAD :: StdMethod

   gogol-core	Gogol.Prelude

   No documentation available.

5. HEAD :: StdMethod

   servant	Servant.API

   No documentation available.

6. HEAD :: StdMethod

   servant	Servant.API.Verbs

   No documentation available.

7. module GHC.Tc.Gen.Head

   No documentation available.

8. newtype Head url

   yesod-core	Yesod.Core.Types

   No documentation available.

9. Head :: HtmlUrl url -> Head url

   yesod-core	Yesod.Core.Types

   No documentation available.

10. HEAD :: RequestMethod

    HTTP	Network.HTTP.Base

    No documentation available.

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