Projects in Awesome Lists tagged with type-guards

https://github.com/sniptt-official/guards

🛡 Comprehensive collection of type guards for JavaScript and TypeScript; Inspired by Elixir

deno elixir erlang javascript nodejs type-guards type-safety typescript

Last synced: 27 Jan 2026

https://github.com/janjakubnanista/ts-type-checked

Runtime duck type checking utilities for TypeScript.

duck-typing guards type-guards type-safety typescript typing

Last synced: 13 Apr 2025

https://github.com/lucinyan/ts-known

This library offers guards for common types, and methods to generate type guards for specific types quickly. Safely handle unpredictable unknown types with ease.

guard ts type-guards typescript utils

Last synced: 26 Oct 2025

https://github.com/goldziher/type-predicates

A comprehensive collection of type-guards, type assertions and related utils

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Last synced: 19 Jul 2025

https://github.com/mscharley/generic-type-guard

Type safe, composable type guards for TypeScript

input-validation type-guards type-safety typescript

Last synced: 04 Apr 2025

https://github.com/nyaomaru/is-kit

Lightweight, zero-dependency toolkit for building `isFoo` style type guards in TypeScript. Runtime-safe 🛡️, composable 🧩, and ergonomic ✨. npm -> https://www.npmjs.com/package/is-kit

is is-kit open-source runtime-type-checking type-guard type-guards type-safe typescript utility validation

Last synced: 27 Jun 2026

https://github.com/marekh19/narrowland

A lightweight TypeScript library providing type-safe assertions, type guards, and error handling utilities.

assert invariant narrowing type-guards typescript

Last synced: 23 Feb 2026

https://github.com/justinlettau/ts-util-is

TypeScript typeof utility helper with no dependencies.

type-guards typeof typescript util

Last synced: 25 Oct 2025

https://github.com/buschtoens/combine-type-predicates

Combine user-defined type guards / type predicates as unions and intersections.

intersection-types type-guard type-guards type-predicates typescript union-types

Last synced: 23 Apr 2025

https://github.com/andjsrk/typesafe-guard

A utility for creating type-safe user-defined type guard for TypeScript

library predicate-functions predicates type-guards typescript utility validation validator

Last synced: 01 Apr 2025

https://github.com/nberlette/math

Standalone zero-dependency implementation of the entire `Math` namespace, compatible with any JS runtime.

arithmetic constants f16 floating-point logarithmic math ponyfill pure-javascript rounding trigonometry type-guards universal

Last synced: 24 Jan 2026

https://github.com/deno911/dis

Typechecking with ease.

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Last synced: 11 May 2026

https://github.com/lccodder/typing-assets

TypeScript library with additional utility types and predicators generation

advanced-types assets jest-tests nodejs react type-guard type-guards typescript typescript-library utility utility-types

Last synced: 19 Feb 2026

https://github.com/flex-development/tutils

TypeScript-friendly utilities

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Last synced: 25 Jun 2026

https://github.com/matthieubosquet/ts-guards

A collection of basic type guards.

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Last synced: 08 Apr 2026

https://github.com/fibo/minimal-type-guard-helpers

minimal type-guard helpers

helpers minimal type-guards

Last synced: 23 Aug 2025

https://github.com/shadow578/type-guardian

functional, composable type guards

type-guards typescript

Last synced: 26 Mar 2025

https://github.com/nberlette/is

Just another portable platform-agnostic package of high-performance type predicates. 🤪

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Last synced: 11 Apr 2026

https://github.com/younho9/is-interface

Type Guard for interface

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Last synced: 15 May 2026

https://github.com/socialaccess-network/isa

A simple and lightweight library for creating and validating javascript variables. It is designed to be used with typescript, but can also be used with plain javascript.

javascript type-guards typescript validation validation-library

Last synced: 22 Apr 2026