An educational pure functional programming library in TypeScript
Release v0.1.0-alpha.15
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CHANGELOG.md
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CHANGELOG.md
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All notable changes to this project will be documented in this file.
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## [0.1.0-alpha.15] - 2026-04-18
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### Fixed
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- **`traverseResult` / `traverseOption` mutation and early returns** — rewritten as pure `reduce` folds over `Result<readonly B[], E>` / `Option<readonly B[]>` accumulators, removing the mutable local arrays and multi-return control flow that violated the project's FP rules
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- **`apOption` / `liftA2Option` raw `None` literals** — now use the exported `none` singleton for referential-identity consistency with `mapOption` / `flatMapOption`
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### Changed
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- **Exit namespace consolidated** — removed the `Exit.succeed` / `Exit.fail` / `Exit.interrupt` aliases; use the canonical `Exit.success` / `Exit.failure` / `Exit.interrupted` instead. Examples and docs-site updated accordingly.
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### Documentation
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- Collapsed duplicate "Type Class Interfaces" section headers in `prelude/typeclasses.ts` and removed the redundant HKT paragraph already covered by the module docstring
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## [0.1.0-alpha.14] - 2026-04-03
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### Fixed