Check native type of the given value and throw TypeError if not okey. Expressive, elegant, behavior-driven API, good descriptive default error messages, simple and clean syntax.

Project #30 of Codecademy's Full Stack Engineer Career Path

🖐 Simple, Lightweight type checking of multiple arguments 👀

An importable TypeScript method to fix the JavaScript 'typeof' operator. This code is written as a module for the deno runtime.

Use the JavaScript console to debug programs and prevent common issues before they happen

Correct judgment of object type.

One more library for defining types

🛠️ My personal type utils as an NPM package

✔️JavaScript类型检查，弥补typeof不足

Get the type of every parameter

An opinionated type-of library for Javascript and TypeScript.

Simple functionality alternative to check data type references such as typeof and instanceof.

Type validation function focused on tooling

Test if two arguments have the same type.

Detects precise type of objects like `Array()`, `new Number(1)`, `new Boolean(true)`, etc

get the type of a javascript value

Detect native Symbol.toStringTag support.

Jest matcher that allows you to test the expected type of value.