Taking inspiration from the functional world
summary
Shows concrete techniques for making Ruby code more functional: using IceNine to deep-freeze structures and the gem adamantium to build immutable objects (but object creation becomes 13x slower in a simple benchmark), composing transformations with a small library around Ruby method objects (Transproc) instead of monkey-patching Enumerable, handling failures with Maybe/Either-style monads, and organizing stateless, dependency-injected callable objects via a container (dry-container / dry-auto_inject) that are easy to compose and test.
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chapters (36)
- 0:00Introduction
- 1:17First job
- 1:50Learning more
- 2:22Shift to functional
- 2:53Ruby
- 4:08Immutable
- 6:26Deep Freeze
- 7:10Objects
- 7:38Iceline
- 8:37Useful for education
- 9:36Transforming data
- 10:52Map
- 12:36lambdas
- 13:18two abstractions
- 14:40numerable module
- 15:19chain method calls
- 15:48method objects
- 17:47Trans Prague
- 18:27Function Composition
- 19:07Pipeline Composition Operator
- 20:09Import Functions
- 21:32Monads
- 22:19Consistency
- 23:24Handling error
- 23:42Functional objects
- 24:42Stateless objects
- 26:30Object orientation
- 27:16Method call
- 27:57Input and output
- 29:47Dependencies
- 31:06Dry Container
- 32:03Dependency Injection
- 35:07Does it make sense
- 36:15Experimenting with Ruby
- 37:28No Object Oriented Languages
- 38:08Alexer
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