JSPM

The `util.is*` functions introduced in Node v0.12.

Comprehensive TypeScript/JavaScript utility library with cross-environment support (Node.js, browser, web worker) providing helper functions, polyfills (ES5-ES2023), type checking utilities, and optimized implementations for better minification and code r

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

TypeScript typeof utility helper with no dependencies.

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

helper tools for javascript validation

ExtremeJS Utilities

This library provides core functionalities for determining the type of a given object, supporting various JavaScript data types.

Type detection beyond `typeof`

Simple type checker in JavaScript.

A very simple "typeof" detection

A utility library for type checks and type manipulation in JavaScript and TypeScript, providing functions to determine types and verify values like null, undefined, boolean, number, and more.

Type check in TypeScript

Collection of methods for check

js各种类型判断工具/A type tool for javascript

A very simple "typeof" detection

js各种类型判断工具/A type tool for javascript

Simple type checker in JavaScript.

The `util.is*` functions introduced in Node v0.12.

This module copies functionality of core-util-is v1.0.2 for ExtendScript.

Javascript data type check true or false.

Check if the parameter is regexp

js各种类型判断工具/A type tool for javascript。 原typest归属账号neo***8迁移到本npm下。

The `util.is*` functions introduced in Node v0.12. Now with React Native support.

JavaScript library to check data types