Learning Scalaz
summary
Scalaz aims to make Scala code more type-safe and composable by providing concrete tools: it replaces unsafe equality so comparing different literal types fails to compile via === triple equals, pulls fold patterns into a reusable zero and append monoid abstraction, offers an applicative NonEmptyList Validation that accumulates all form errors (returns a Failure containing both missing-last-name and bad-password), and supplies a State monad to sequence state transitions (used here to model a Tetris-like block AI). The recommended workflow is hands-on REPL exercises and examples.
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chapters (12)
- 0:00Intro
- 1:26When did you start coding
- 1:46Why did you start coding
- 2:15How did you start coding
- 2:27How did you start learning Scala
- 3:09The first rule sort of
- 3:33The second rule sort of
- 4:50The third rule
- 5:30Books
- 5:50Programming
- 11:59Expression Problem
- 13:05Polymorphism
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