classy-prelude

A typeclass-based Prelude.

https://github.com/snoyberg/classy-prelude

Version on this page:	0.10.2@rev:2
LTS Haskell 24.28:	1.5.0.3
Stackage Nightly 2026-01-16:	1.5.0.3
Latest on Hackage:	1.5.0.3

See all snapshots classy-prelude appears in

MIT licensed by Michael Snoyman

Maintained by [email protected]

This version can be pinned in stack with:classy-prelude-0.10.2@sha256:d7189ba30f3481fe6d38bd942523a0546d337347e070adcc56150b678c9a3dd6,2302

Module documentation for 0.10.2

ClassyPrelude

Depends on 24 packages(full list with versions):

Used by 2 packages in lts-1.1(full list with versions):

classy-prelude-conduit, classy-prelude-yesod

Focuses on using common typeclasses when possible, and creating new ones to avoid name clashing. Exposes many recommended datastructures (Map, ByteString, etc) directly without requiring long import lists and qualified modules.

Changes

0.10.2

Provide foldMap and fold as synonyms for concatMap and concat.
Switch to more general Traversable-based functions (sequence_ in particular).