foldl

Composable, streaming, and efficient left folds

Version on this page:1.0.7@rev:1
LTS Haskell 22.39:1.4.17
Stackage Nightly 2024-10-29:1.4.17
Latest on Hackage:1.4.17

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BSD-3-Clause licensed by Gabriel Gonzalez
Maintained by [email protected]
This version can be pinned in stack with:foldl-1.0.7@sha256:00f694d3c7be565194e9404f4ff8014a2b005866ed70311c869377b2668cceec,1309

Module documentation for 1.0.7

  • Control
    • Control.Foldl
      • Control.Foldl.ByteString
      • Control.Foldl.Text

This library provides strict left folds that stream in constant memory, and you can combine folds using Applicative style to derive new folds. Derived folds still traverse the container just once and are often as efficient as hand-written folds.