ts-belt

Fast, modern, and practical utility library for FP in TypeScript.

👀 provides more readable code, due to the data-first approach·✨ supports TypeScript and Flow·🛡 helps you write safer code with Option and Result data types·🎯 all functions return immutable data (no side-effects)·🌲 tree-shakeable

Modules

Array

Utility functions for Array.

Boolean

Utility functions for Boolean.

Function

Other useful utility functions (such as debounce, throttle and more).

Guards

Various TypeScript guards.

Number

Utility functions for Number.

Object (Dict)

Utility functions for Object.

Option

Functions for handling the Option data type that represents the existence and nonexistence of a value.

Result

Functions for describing the result of a certain operation without relying on exceptions.

String

Utility functions for String.

Benchmarks

ts-belt is built with ReScript, which generates highly performant JavaScript code, comparing to the alternatives (such as lodash, ram(b)da and remeda), ts-belt is much faster ⚡

See results