The missing pseudo-standard library for fp-ts.
Documentation: samhh.github.io/fp-ts-std
The library is available on the npm registry under the same package name: fp-ts-std
fp-ts, newtype-ts, and monocle-ts are listed as peer dependencies.
fp-ts-std is published with both ES2015 and CJS modules, the former of which should tree shake well. Modern ES modules are not yet supported.
Node LTS, Bun, and recent evergreen browsers are supported.
fp-ts-std aims to achieve the following objectives:
- Flesh out what fp-ts is missing
- Fill in the gaps between fp-ts and Ramda
- Wrap JS APIs to be friendly, so that you never have to interact with
nullorundefined, or worry about a function throwing again
fp-ts-std strives to adhere to the following principles:
- Strict type-safety wherever possible, with risks well documented
- All functions are curried
- Functions are data-last as a rule
- Functions are total unless explicitly prefixed with "unsafe" (with the exception of the
Debugmodule) - Impure functions are appropriately signed with the
IOandTasktypes - Lean towards Haskell naming conventions and idioms with an eye to fp-ts norms
Additionally, fp-ts-std enforces 100% testing coverage, and just about everything is documented with examples.
Unreleased work is commit to the develop branch. master is the release branch and whence the documentation is generated.
All modules and exports must be annotated with JSDoc. This information is used to generate documentation. Simple, illustratory tests can also be included and will be checked during docs generation. For more information, see docs-ts.