Type-checking Packages

Runtime type checking for JavaScript variables and functions.

> Pin input component for React

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

a simple utility for validating types, such as strings, numbers, arrays, functions and so on

Blazing fast input validation and transformation ⚡

A simple but powerful Type Checking Library

Runtime type-checking of any value in javascript

A library for safely executing functions with type-checked arguments.

auxiliary module to let Node-RED import the javascript-interface-library

Generate type-safe route utilities for Next.js app router

Unique IDs with prefixes, inspired by Stripe

A simple TypeScript library providing type guards for the primitive types in JavaScript.

Real-time error messaging and supports field dependencies React hook for form validation

A lightweight TypeScript utility library for performing common type-safe value checks with type narrowing

Type-checking utilities for JavaScript

Assertion utilities

Guard-env is a Node.js module for type-checking and guarding environment variables based on specified configurations.

Useful heuristics, type checks, and validation helpers for JavaScript and TypeScript

TypeScript 原生类型守卫生成器，自动同步类型定义与运行时验证逻辑。支持装饰器语法、类型谓词组合与泛型约束验证，提供 VS Code 智能提示插件。

A lightweight esbuild-based implementation of tsc that trim off the types (without type checking)