JSPM

Generic type guards for TypeScript

A simple library for implementing type guard in TypeScript.

Typescript package boilerplate template

Collection of validation functions for JavaScript data

TypeScript predicates and assertions library

TypeScript utilities

Type-guards, casts and converts unknowns into typed values

Typescript package boilerplate template

TypeScript predicates library

Type-safe error handling with discriminated unions and type guards for TypeScript

Just function to predicate non nullable with type guard.

Runtime type guard generator for TypeScript. Create validators for objects, arrays, tuples and unions with automatic type inference. 3x faster than io-ts with zero dependencies.

Simple typechecker for custom type guards

Generic type guard to check if a given value is a member of enum

A runtime data validator in TypeScript with advanced type inference, built-in validation functions, and seamless integration for server and client environments.

A simple TypeScript library providing type guards for the primitive types in JavaScript.

A set of type guards for TypeScript

A modern TypeScript library designed to reduce boilerplate for tagged unions, also known as discriminated unions. This library is also an implementation of algebraic data types

Typescript library for typesafe creation of validation functions and type guards.

TypeScript type guard utilities providing runtime type checking and validation with zero dependencies

Runtime type checking library for TS & JS

Nullish helper functions and types for TypeScript.

Zero-dependency TypeScript runtime type validation with full type inference

Build to-typed objects from JSON files.

Provides type detection and analysis for ANY Javascript object (including custom types) in any environment, even where native operators falter.

Type-guard for Record

Typescript library to declare type-safe models by inferring model types from their validators.

TypeScript predicates library

Falsy helper functions and types for TypeScript.

Predicate helper functions and types for TypeScript.

A safe way to retrieve values from any level of the object cavity

Type-guards for Bitmex API objects

The definitive JavaScript type testing functions

A TypeScript Type-Guard for Filtering out undefined Values

Check if a value is a plain object, with TypeGuard.

Type guard based on exclude

Quickly write Type-Guard functions for checking objects

Type-guard for DerivedRecord

Koa middleware for handling errors.

Type Guard for interface

provides few helpers to create type guards