Lens

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Lenses are a way to easily access record fields.

Packages

• lens
• lenses
• lens-sop

Furthermore, see the packages in the category Lenses on Hackage

Links

• basic lens operator examples
• Getting Started with Lenses
• Haskell for all: Lenses
• Haskell for all: Program imperatively using Haskell lenses
• LensBeginnersCheatsheet
• Lenses: compositional data access and manipulation, a podcast of Simon Peyton Jones talking about lenses
• Why I don’t like the lens library
• CCC #23: Picking a lens library
• Musings on Lens
• The HCAR 2014 entry for the package lens, including a list of links