Red In Fantasyland
summary
A fairy‑tale walkthrough turns into concrete Ruby work: functions become Mapable/Reducible modules implemented with wrap/value and empty/join, examples show map and reduce implemented for String, Array, custom Move and Clock types, and composition with lambdas; a small Result type surfaces as Result type with Success/Failure, map/value_or and flat_map semantics, and a playful teapot monad demonstrates pourable/monad bind and reducible laws with working code and QR links in the red and fantasy land channel.
AI-written summary · about
chapters (10)
- 0:00Introduction to Red in Fantasyland
- 1:47Storyteller and forbidden book
- 9:10Forest of Functions
- 14:05Mappable Meadows
- 25:00Reducible Residence
- 36:49Eer Cat’s Labyrinth
- 38:35Tea Party and Falsy Contexts
- 47:23Teapots, Monads, and Ivory Tower
- 54:45Monastic Lesson on Monads
- 57:12Forbidden knowledge and Ruby’s growth








