mobily/ts-belt

Health v2 · maintenance only

Adoption not part of the score

1197 stars · 29 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

ts-belt is a fast, modern utility library for functional programming in TypeScript, built with ReScript for high performance. It provides data-first utility functions for arrays, strings, numbers, and objects, plus Option and Result types for safer, side-effect-free code.

Use cases

• use Option and Result types to avoid null and exceptions in TypeScript
• replace lodash or ramda with a faster data-first functional utility library
• pipe and compose functions with immutable data transformations
• add type guards and safe array/string/object utilities to a TypeScript project
• write tree-shakeable functional code with no side effects

When to choose

• you want a fast, data-first FP utility library with strong TypeScript support
• you need Option and Result types for safer error handling
• performance matters and you want benchmarks beating lodash or ramda
• you want immutable, tree-shakeable utility functions

When to avoid

• you prefer data-last point-free style like ramda
• your project is plain JavaScript without TypeScript
• you need a huge ecosystem and community like lodash

Facets

library · maturity active

serialization error-handling developer-tools developer-tools web-development cross-platform functional-programming option-type result-type data-first immutable-data tree-shakeable rescript utility-library nodejs typescript

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