[Haskell-cafe] What is the meaning of tilde ("~") symbol
jakewheatmail at googlemail.com
Sun Feb 14 17:21:44 EST 2010
On 14 February 2010 22:11, Evan Laforge <qdunkan at gmail.com> wrote:
>>> Finally, it is the array subscript operator:
>>> let x = arr ! 10
>> Shouldn't this be
>> let x = arr !! 10
> !! is the list subscript. Look in Data.Array.IArray for (!). Or Data.Map.
> There's still no consensus on typeclasses for collections, so these
> are all separate functions. Has anyone taken a shot at a set of
> AT-using classes for the standard collections?
That is a really useful page (http://www.haskell.org/haskellwiki/Keywords).
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