JSPM

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

Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)

Simple and convenient generator of prototype based constructor functions

A javascript library which allows to check javascript value types at runtime

Validate object properties against type schema

Type checker for typescript

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

TypeScript Library for safe type assertion

Create validations with ease

CLI tool to statically type-check JavaScript via JSDoc annotations

Check your types at runtime with ESNext syntax by meta programing in node.js and browser with interfaces, types, strict object and more.

Runtime type annotations for CoffeeScript (and JavaScript too!)

A fixed version of the native javascript typeof function.

Check if a value is property accessible

Check your types at runtime with ESNext syntax by meta programing in node.js and browser with interfaces, strict object and more.

A collection of small utility functions to check variable types

A simple runtime JSON type checker

Library for checking data values and type safety

A JavaScript compiler and TypeScript checker written in Rust with a focus on static analysis and runtime performance

A collection of "is"-style helpers to help solidify if something "is" something else. Has no dependencies and uses only raw JavaScript methodology.

Ezno as a plugin

Simple and light-weight JavaScript type checker that brings convenience!

The object typeChecker checks javascript types

This package is designed to assist developers in type checking and validation for various JavaScript values. It provides a collection of type-checking functions, and utilities to validate your values.

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

Basic runtime type checking

Basic type checking

Runtime Type Check for Typescript

Data type checker

Type checker for typescript

A JavaScript library that checks whether the value is of a specific type

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

Just advanced version of type checker, made simple to use

toolbox for development

A small library for checking types

Modular runtime type checker with focus on creating readable and smart error messages

A super tiny library that verifies types

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

A type-safe subset of ES6

it will return the type of any object

A checker for types in typescript

JavaScript library to check data types

Runtime type-checking of any value in javascript