HackerTube

traversals

Play all on YouTube
Lenses, Folds, and Traversals1:54:46

Lenses, Folds, and Traversals

54K views • 13 years ago
Edward Kmett
Edward Kmett's talk to the NY Haskell User Group on the lens library, building from fmap and function composition up to lenses, folds and traversals. It shows how these composable combinators access and modify parts of data structures.