Type-checking Packages

Strongly typed value encoder and decoder with runtime type checking. Inspired by Swift's Codable

A little javascript library for checking argument values

ESNext type checker.

A robust TypeScript class for type checking and validation

JS type check (TypeScript supported) functions like `isPlainObject() isArray()` etc. A simple & small integration.

A small package for checking if a value is a certain type.

An utility to check if a value is a number (allowing string numbers optionally).

various classification, validation and utility functions

Type checking utilities.

strong and flexible runtime typechecking that's just javascript with types that are fully serializable

A powerful TypeScript library for runtime type checking and validation using decorators

library for crafting types and casting type inhabitants

Basic runtime type checking

TypeGuru is a lightweight TypeScript utility library for type checking. It includes utility functions for checking object literals, plain objects, specific types, and more.

A comprehensive runtime type-checking library for JavaScript, React, Node.js, and Express.

A utility for type checking elements on an array. The library is inspired from chai framework supporting chaining to combine multiple operations.

Runtime type checking for JavaScript variables and functions.

Runtime type checking and type assertion library for Node and the browser

Unlike default EcmaScript (JavaScript) constructors such as `String() defaults to '' | Number() defaults to 0 | Symbol() defaults to Symbol() | Boolean() defaults to false` . Instead, using `typed-getters` we can maintain consistency among JavaScript prim

check value is string or not