Optics By Example

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The lenses and optics book for Haskell and other functional programming languages Be a data-manipulation wizard with Lenses, Prisms, Traversals and more!

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Optics By Example21 chapters

Begin
  1. 1 Obligatory Preamble

  2. 2 Optics

  3. 3 Lenses

  4. 4 Polymorphic Optics

  5. 5 Operators

  6. 6 Folds

  7. 7 Traversals

  8. 8 Indexable Structures

  9. 9 Prisms

  10. 10 Isos

  11. 11 Indexed Optics

  12. 12 Dealing with Type Errors

  13. 13 Optics and Monads

  14. 14 Classy Lenses

  15. 15 JSON

  16. 16 Uniplate - Manipulating recursive data

  17. 17 generic-lens

  18. 18 Appendices

  19. 19 Answers to Exercises

  20. 20 Thanks

  21. Notes