Functional Helpers 🛠️

A collection of functional programming utilities for TypeScript. I find myself re-implementing these functions all over the place. Here they are, properly formatted and tested.

Features

• Object Helpers: pick, omit, set, merge
• List Helpers: zip, partition, s
• Result Types: Ok, Err, Result
• Function Helpers: composeL, composeR
• Type Predicates:
  • isString
  • isNumber
  • isBoolean
  • isObject
  • isArray
  • isFunction
  • isUndefined
  • isNull
  • isAsyncFn
• Predicate Combinators
  • isAnyOf
  • isAllOf

Installation

Just clone the repo and copy the src/index.ts file into your lib directory (or similar, based on your codebase's requirements).

  cd project/src/lib
  git clone https://github.com/Veski0/functional.git
  cp functional/src/index.ts .
  rm -rf functional

To run the tests you'll need to install the tape library.

  cd project
  npm i --save-dev tape @types/tape