traverse_

Fumiaki Kinoshita fumiexcel at gmail.com
Mon Mar 30 05:05:56 UTC 2015


> Hi,

> I have just installed GHC 7.10.1. I'm a little bit surprised because
> 'traverse_' is not exported from Prelude. But 'traverse' is exported.
> Is this intentional?

> I expected that I can forget xxxM, xxxM_, xxxA, and xxxA_ functions
> with GHC 7.10.1. I want to use 'traverse_' instead of 'mapM_'.

> --Kazu

I found out that (<>) (in Data.Monoid) is missing, also. It would be nice
to reexamine Prelude to export things we want to export.
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