@hackage precursor0.1.0.0

Prelude replacement

Features

No more String: String is removed in favor of lazy Data.Text.Lazy.Text.
No more Num: The Num typeclass is now just for types which can be converted from integer literals.
Semigroups: Semigroups are now in scope by default, as well as some useful wrappers.
Semirings: A Semiring has the operations + and *, and the members one and zero. Bool is a Semiring, as is Integer, etc. Num is not a superclass of Semiring.
Sensibly strict: Several functions, such as foldl, sum, product, etc. are strict as default.
No unnecessary Monads: Functions such as Control.Monad.sequence, Control.Monad.>>, and Control.Monad.replicateM are removed in favor of the equivalent sequenceA, *>, and replicateA on Applicatives.
Fewer partial functions: Functions like head, last, minimum, etc. now return Nothing when called on empty structures. tail and init return empty lists when called on empty lists.
Data structures: Map and Set (the strict variants) are now in scope by default, with a minimal, non-colliding aliased api.
Transformers: State is now in scope by default.
Debugging: Handy functions like trace, traceShow, and notImplemented are in scope by default. They give warnings when used so they can't be forgotten.
Other handy functions: An O(n*log n) nub, foldr2, converge, bool, and others.