JSPM

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

Curried TypeScript type guards for primitive types and classes

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

Utility library for javascript type checking.

ExtremeJS Utilities

js各种类型判断工具/A type tool for javascript

A very simple "typeof" detection

Collection of methods for check

Type detection beyond `typeof`

helper tools for javascript validation

Simple type checker in JavaScript.

A fixed version of the native javascript typeof function.

locore is a Standard library. the library with basic JavaScript methods to improve development efficiency.

Useful simple functions.

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

A node.js module to get, compare and check types

Simple type checker in JavaScript.

JS常用工具封装

declarative check type of function arguments and development profiler for your functions

Type check in TypeScript

This package is for confirming data that will take arguments to verify its value and type.

This library is to check for null and undefined values in JSON objects

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。

js各种类型判断工具/A type tool for javascript

a practical custom toolkit

has-empty-value is a package used to check the value is empty.

Curried TypeScript type guards for primitive types and classes

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

Curried TypeScript type guards for primitive types and classes

Helpful and useful javascript functions

The fast and reliable JS type-checking toolbox!

javascript类型判断

A comprehensive collection of basic utility functions and component for React ( React >= 18)

Curried TypeScript type guards for primitive types and classes

A utility function to fix and extend the built-in ''typeof'' operator of JavaScript.

Check if the given value is of a specific type.

Javascript data type check true or false.

A very simple "typeof" detection

A lightweight utility library for common JavaScript checks, including isEmpty, isNull, isNumber, isEmptyString, isArray, and isNaN. Useful for validation and data handling.

JSON isNull method

A small set of functions to check value against a specific type

JavaScript library to check data types

A base class implementing basic value validators. E.g: isDefined, isNumber, etc... More validators to be added soon (isEmpty, isNull, isGreaterThan, isLessThan, isBoolean, isArray, etc...)

Check if the parameter is null