Usage

There are two ways to import ts-belt functions into your project.

Compact

Module	Namespace	Description
Array	A	Utility functions for Array.
Boolean	B	Utility functions for Boolean.
Number	N	Utility functions for Number.
Object (Dict)	D	Utility functions for Object.
String	S	Utility functions for String.
Guards	G	Various TypeScript guards.
Option	O	Functions for handling the Option type that represents the existence and nonexistence of a value.
Result	R	Functions for describing the result of a certain operation without relying on exceptions.
Function	F	Other useful functions.

The full API reference can be found here.

import { A, O, N, pipe } from '@mobily/ts-belt'

pipe(
  [1, 2, 3, 4, 5], // → [1, 2, 3, 4, 5]
  A.dropExactly(2), // → Some([3, 4, 5])
  O.flatMap(A.head), // → Some(3)
  O.map(N.multiply(10)), // → Some(30)
  O.getWithDefault(0), // → 30
) // → 30

Explicit

import * as Belt from '@mobily/ts-belt'

Belt.pipe(
  [1, 2, 3, 4, 5],
  Belt.A.dropExactly(2),
  Belt.O.flatMap(Belt.A.head),
  Belt.O.map(Belt.N.multiply(10)),
  Belt.O.getWithDefault(0),
)