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npmjs.org "type-checking" keyword

@sounisi5011/ts-utils-is-property-accessible 1.0.3
Check if a value is property accessible
4 versions - Latest release: almost 4 years ago - 4 dependent packages - 1 dependent repositories - 65 downloads last month - 5 stars on GitHub - 1 maintainer
wtf-is 0.1.1
Tiny type-checking library
2 versions - Latest release: almost 12 years ago - 1 dependent repositories - 32 downloads last month - 0 stars on GitHub - 1 maintainer
@treedy/typescript-lsp-mcp 0.1.7
MCP server providing TypeScript/JavaScript code intelligence using the official TypeScript Langua...
6 versions - Latest release: about 2 months ago - 377 downloads last month - 1 maintainer
Top 3.4% on npmjs.org
predicates 2.0.3
Set of various predicates for type checking, assertions, filtering etc
13 versions - Latest release: about 8 years ago - 40 dependent packages - 59 dependent repositories - 52 thousand downloads last month - 89 stars on GitHub - 1 maintainer
@composi/get-type 1.0.12
Function to get the type of the provided value. This is not the same as 'typeof'. It returns the ...
13 versions - Latest release: almost 6 years ago - 3 dependent packages - 4 dependent repositories - 12 downloads last month - 1 stars on GitHub - 1 maintainer
easy-enums 1.1.8
Easy but powerful enums for safer code. e.g. const Fruit = new Enum("apple pear banana"); gives y...
10 versions - Latest release: over 5 years ago - 3 dependent packages - 8 dependent repositories - 69 downloads last month - 0 stars on GitHub - 1 maintainer
@d1g1tal/tsbuild 1.7.3
A fast, ESM-only TypeScript build tool combining the TypeScript API for type checking and declara...
28 versions - Latest release: about 11 hours ago - 1.41 thousand downloads last month - 0 stars on GitHub - 1 maintainer
@kitiumai/schemas 2.0.0
Enterprise-grade reusable schema definitions and validation utilities for SaaS applications. Prov...
2 versions - Latest release: 4 months ago - 74 downloads last month - 0 stars on GitHub - 1 maintainer
@zhin.js/schema 1.0.41 💰
Configuration validation and schema system for Zhin.js
42 versions - Latest release: about 16 hours ago - 4.95 thousand downloads last month - 126 stars on GitHub - 1 maintainer
error-if-not-function 1.0.0
Function triggers error if argument is not type 'function'
1 version - Latest release: almost 7 years ago - 6 dependent packages - 5 dependent repositories - 8 downloads last month - 0 stars on GitHub - 1 maintainer
Top 5.8% on npmjs.org
@tamagui/ow 0.28.1 💰
Function argument validation for humans
1 version - Latest release: over 4 years ago - 2 dependent packages - 15 dependent repositories - 40 downloads last month - 3,781 stars on GitHub - 1 maintainer
@rastopyr/ow 0.13.2 💰
Function argument validation for humans
2 versions - Latest release: over 6 years ago - 2 dependent packages - 1 dependent repositories - 29 downloads last month - 3,876 stars on GitHub - 1 maintainer
ow--fork-by-jblew-with-catching 0.13.5 💰
Function argument validation for humans
4 versions - Latest release: over 6 years ago - 4 dependent packages - 8 dependent repositories - 43 downloads last month - 3,781 stars on GitHub - 1 maintainer
Top 2.8% on npmjs.org
typical 7.3.0
Isomorphic, functional type-checking for Javascript
29 versions - Latest release: over 1 year ago - 85 dependent packages - 87,823 dependent repositories - 41.3 million downloads last month - 25 stars on GitHub - 1 maintainer
Top 0.7% on npmjs.org
ts-toolbelt 9.6.0 💰
TypeScript's largest utility library
916 versions - Latest release: about 5 years ago - 1,076 dependent packages - 19,205 dependent repositories - 30.1 million downloads last month - 6,622 stars on GitHub - 1 maintainer
Top 1.8% on npmjs.org
is-what 5.5.0 💰
JS type check (TypeScript supported) functions like `isPlainObject() isArray()` etc. A simple & s...
78 versions - Latest release: 6 months ago - 128 dependent packages - 306,916 dependent repositories - 66.1 million downloads last month - 181 stars on GitHub - 1 maintainer
Top 2.0% on npmjs.org
machine 15.2.3
Build functions in standardized containers.
132 versions - Latest release: almost 3 years ago - 267 dependent packages - 3,548 dependent repositories - 567 thousand downloads last month - 144 stars on GitHub - 3 maintainers
dhi 1.2.1
Ultra-fast Zod 4 drop-in replacement - 20x faster average, full API parity, SIMD WASM, 28KB binary
28 versions - Latest release: 17 days ago - 506 downloads last month - 35 stars on GitHub - 1 maintainer
error-if-not-finite-number 2.0.1
Function triggers error if argument is not finite number of type 'number'
3 versions - Latest release: over 5 years ago - 17 dependent packages - 21 dependent repositories - 21 downloads last month - 0 stars on GitHub - 1 maintainer
@arcletjs/alconna 1.0.4
A High-performance, Generality, Humane Command Line Arguments Parser Library.
5 versions - Latest release: about 3 years ago - 1 dependent package - 15 downloads last month - 1 stars on GitHub - 1 maintainer
typeguru 0.0.4
TypeGuru is a lightweight TypeScript utility library for type checking. It includes utility funct...
4 versions - Latest release: about 3 years ago - 13 downloads last month - 0 stars on GitHub - 1 maintainer
functype-mcp-server 0.56.0
MCP server for functype documentation lookup and TypeScript code validation
9 versions - Latest release: 3 days ago - 1.01 thousand downloads last month - 8 stars on GitHub - 1 maintainer
next-routes-typed 0.1.0
Generate type-safe route utilities for Next.js app router
1 version - Latest release: over 1 year ago - 8 downloads last month - 1 maintainer
@razinshafayet/typedjs 0.3.0
Runtime type checking for JavaScript
7 versions - Latest release: 2 months ago - 1 maintainer
yatc 0.1.0
Yet Another Type Checker for JavaScript
1 version - Latest release: about 11 years ago - 2 dependent packages - 5 dependent repositories - 17 downloads last month - 1 stars on GitHub - 1 maintainer
truthify 1.0.0
Helps you confirm the existence of specified falsy values (e.g. 0)
1 version - Latest release: almost 11 years ago - 1 dependent repositories - 9 downloads last month - 1 maintainer
Top 5.9% on npmjs.org
variable-type 1.0.0 💰
Runtime type checking for variable and similar objects.
8 versions - Latest release: about 6 years ago - 6 dependent packages - 7 dependent repositories - 108 downloads last month - 24 stars on GitHub - 1 maintainer
sniffly 1.0.2
A lightweight TypeScript utility library for performing common type-safe value checks with type n...
3 versions - Latest release: about 1 year ago - 15 downloads last month - 0 stars on GitHub - 1 maintainer
eslint-plugin-no-truthy-collections 1.0.4
ESLint plugin that prevents dangerous boolean coercion of arrays and objects in JavaScript and Ty...
5 versions - Latest release: 10 months ago - 2 downloads last month - 0 stars on GitHub - 1 maintainer
@jasonbyrne/dry-types 0.2.12
Reusable utility functions for type conversions and checks
19 versions - Latest release: 2 months ago - 310 downloads last month - 0 stars on GitHub - 1 maintainer
@kitiumai/env-type-generator 3.0.1
Zero-config TypeScript type generator for .env files with Zod validation, watch mode, and IDE aut...
4 versions - Latest release: 4 months ago - 25 downloads last month - 0 stars on GitHub - 1 maintainer
lukinto-utils-type-checking 1.0.0
A library of type checking utilities.
1 version - Latest release: about 3 years ago - 1 downloads last month - 0 stars on GitHub - 1 maintainer
ensure-types 1.0.2
Simple helpers to ensure uncertain interfaces in typescript
3 versions - Latest release: over 6 years ago - 1 dependent package - 1 dependent repositories - 8 downloads last month - 0 stars on GitHub - 1 maintainer
khyron 0.2.1
Run-time type checking for JavaScript
3 versions - Latest release: about 8 years ago - 1 dependent package - 1 dependent repositories - 8 downloads last month - 1 stars on GitHub - 1 maintainer
vuex-store-validator 2.0.7 💰
Validate Vuex Commits with Joi, Superstruct & Yup Schema
11 versions - Latest release: almost 5 years ago - 1 dependent package - 70 downloads last month - 4 stars on GitHub - 1 maintainer
@molinit/validator 1.0.2
A flexible, type-safe validation library for TypeScript/JavaScript with declarative schema-based ...
2 versions - Latest release: 5 months ago - 1 maintainer
redux-action-type-validator 1.1.0
Type validator for redux actions
4 versions - Latest release: almost 10 years ago - 1 dependent repositories - 20 downloads last month - 0 stars on GitHub - 1 maintainer
Top 2.6% on npmjs.org
check-types 11.2.3
A little library for asserting types and values, with zero dependencies.
90 versions - Latest release: over 2 years ago - 511 dependent packages - 1,105,180 dependent repositories - 22.3 million downloads last month - 26 stars on gitlab.com - 1 maintainer
tsguard.macro 0.0.2
Babel macro that automatically generates type guards for a given type (WIP)
2 versions - Latest release: about 7 years ago - 1 dependent repositories - 8 downloads last month - 12 stars on GitHub - 1 maintainer
@noneforge/eslint-config 0.2.9
TypeScript/JavaScript ESLint configuration with strict type checking and modern stylistic rules
9 versions - Latest release: 3 months ago - 647 downloads last month - 0 stars on GitHub - 1 maintainer
jstype 0.0.6
Extended and extensible javascript type checking
6 versions - Latest release: over 12 years ago - 3 dependent packages - 4 dependent repositories - 33 downloads last month - 2 stars on GitHub - 1 maintainer
@gloch96/typed-getters 2.0.1
Unlike default EcmaScript (JavaScript) constructors such as `String() defaults to '' | Number() d...
6 versions - Latest release: over 1 year ago - 49 downloads last month - 0 stars on GitHub - 1 maintainer
Top 2.3% on npmjs.org
typeforce 1.18.0
Another biased type checking solution for Javascript
69 versions - Latest release: over 7 years ago - 292 dependent packages - 12,799 dependent repositories - 2.64 million downloads last month - 22 stars on GitHub - 1 maintainer
bguard 0.6.0
**bguard** is a powerful, flexible, and type-safe validation library for TypeScript. It allows de...
17 versions - Latest release: 9 months ago - 163 downloads last month - 0 stars on GitHub - 1 maintainer
type-checking-utils 2.2.0
Type checking utilities.
10 versions - Latest release: over 2 years ago - 3 dependent packages - 4 downloads last month - 1 maintainer
clove-lang 2.0.5
A class-oriented programming-language
2 versions - Latest release: over 5 years ago - 1 dependent package - 13 downloads last month - 1 maintainer
sniff-check 0.2.2
🎯 Opinionated TypeScript/Next.js Development Toolkit - Find large files, unused imports, broken i...
15 versions - Latest release: 6 months ago - 190 downloads last month - 0 stars on GitHub - 1 maintainer
typecraft 1.1.0 💰
library for crafting types and casting type inhabitants
8 versions - Latest release: over 3 years ago - 1 dependent package - 23 downloads last month - 0 stars on GitHub - 1 maintainer
Top 6.5% on npmjs.org
typeco 1.0.0 💰
A javascript library which allows to check javascript value types at runtime
3 versions - Latest release: over 7 years ago - 4 dependent packages - 468 dependent repositories - 2.4 thousand downloads last month - 2 stars on GitHub - 1 maintainer
@moon7/inspect 0.1.1
Lightweight, type-safe runtime type checking library for TypeScript and JavaScript
2 versions - Latest release: 11 months ago - 10 downloads last month - 0 stars on GitHub - 1 maintainer
envkeeper 2.2.0
🛡️ The most human-friendly environment variable validator for Node.js - Beautiful error messages ...
5 versions - Latest release: 6 months ago - 12 downloads last month - 0 stars on GitHub - 1 maintainer
@isz/wants 0.0.1
🐾 What does the request want?
2 versions - Latest release: 7 months ago - 29 downloads last month - 0 stars on GitHub - 1 maintainer
Top 4.0% on npmjs.org
typeis 1.1.2
Typeis. it's the smart and simple javascript type check and validation library
10 versions - Latest release: over 8 years ago - 9 dependent packages - 14 dependent repositories - 1.35 thousand downloads last month - 93 stars on GitHub - 1 maintainer
@jmlweb/tsconfig-react 1.0.6
TypeScript configuration for React libraries with JSX support and modern defaults
7 versions - Latest release: 3 months ago - 803 downloads last month - 1 maintainer
@illavv/run_typer 3.0.4
A robust TypeScript class for type checking and validation
15 versions - Latest release: 6 months ago - 14 downloads last month - 1 maintainer
dis 0.3.7
Tiny tiny duck typing utility
9 versions - Latest release: almost 11 years ago - 6 dependent packages - 6 dependent repositories - 98 downloads last month - 0 stars on GitHub - 1 maintainer
typso 1.0.0
A comprehensive runtime type-checking library for JavaScript, React, Node.js, and Express.
1 version - Latest release: over 1 year ago - 1 downloads last month - 0 stars on GitHub - 1 maintainer
error-if-not-object 2.0.0
Function triggers error is passed argument is not an object. Arrays are considered objects. Null...
2 versions - Latest release: over 5 years ago - 4 dependent packages - 5 dependent repositories - 2 downloads last month - 0 stars on GitHub - 1 maintainer
typelense 0.2.0
TypeScript error collector for TypeScript projects
3 versions - Latest release: 3 months ago - 1 maintainer
tsserver-mcp 1.0.2
MCP server that provides TypeScript language features using tsserver
3 versions - Latest release: 7 months ago - 120 downloads last month - 1 stars on GitHub - 1 maintainer
@jmlweb/tsconfig-base 1.0.5
Base TypeScript configuration with strict type checking and modern defaults
6 versions - Latest release: 3 months ago - 1 maintainer
go-types 1.3.1
Type-checking utilities for JavaScript
5 versions - Latest release: over 3 years ago - 2 dependent packages - 3.69 thousand downloads last month - 0 stars on GitHub - 1 maintainer
@isz/content-type-is 0.0.1
🐾 What kind of content is this request/response?
2 versions - Latest release: 7 months ago - 4 downloads last month - 0 stars on GitHub - 1 maintainer
@scaffit/typescript 1.0.4
TypeScript configuration setup with strict configs for Next.js, React, Vue, Angular, Svelte, Expr...
4 versions - Latest release: 5 months ago - 15 downloads last month - 0 stars on GitHub - 1 maintainer
@utilify/core 2.0.5
Modern, strongly typed, and safe utility function library for JavaScript and TypeScript. Includes...
7 versions - Latest release: 7 months ago - 1.77 thousand downloads last month - 2 stars on GitHub - 1 maintainer
@we-mobius/type-check 0.0.4
Type-checking support.
4 versions - Latest release: almost 2 years ago - 9 dependent packages - 1 dependent repositories - 82 downloads last month - 1 maintainer
Top 4.4% on npmjs.org
bycontract 2.0.11
argument validation library based on JSDOC syntax
18 versions - Latest release: almost 5 years ago - 8 dependent packages - 19 dependent repositories - 5.64 thousand downloads last month - 31 stars on GitHub - 1 maintainer
@promise-saga/plugin-fetch 0.0.3
Promise Saga: Fetch API integration with cancelable requests
3 versions - Latest release: 8 months ago - 10 downloads last month - 1 maintainer
foolproof 0.0.41
Project deprecated. Use lodash-node.
13 versions - Latest release: over 12 years ago - 1 dependent package - 1 dependent repositories - 28 downloads last month - 1 maintainer
@arcletjs/nepattern 1.0.3
Not-Enough-Pattern
4 versions - Latest release: about 3 years ago - 2 dependent packages - 1 dependent repositories - 41 downloads last month - 1 stars on GitHub - 1 maintainer
notmytype 2.0.0
Type-check your function inputs with syntax like T(s, T.string, buf, Buffer, strings, T.list(T.st...
13 versions - Latest release: over 10 years ago - 1 dependent package - 2 dependent repositories - 13 downloads last month - 2 stars on GitHub - 1 maintainer
@djodjonx/wiredi 0.0.13
WireDI - Wire your dependency injection with type safety and compile-time validation
8 versions - Latest release: 3 months ago - 29 downloads last month - 1 maintainer
lycoris 2.0.1
An object-oriented programming language
1 version - Latest release: about 6 years ago - 1 dependent package - 9 downloads last month - 1 maintainer
@jawad-ahmed/is-string 1.0.2
check value is string or not
3 versions - Latest release: over 1 year ago - 14 downloads last month - 1 maintainer
@sequentialos/sequential-validators 1.0.0
Validation utilities and field validators for sequential-ecosystem tasks
1 version - Latest release: 4 months ago - 1 maintainer
phane-tech-object-utils 1.0.2
Pure JavaScript array utility functions
2 versions - Latest release: 3 months ago - 1 maintainer
ts-lsp-mcp 0.1.3
MCP server exposing TypeScript LSP-like functionality to AI agents
2 versions - Latest release: 4 months ago - 1 maintainer
@jmlweb/tsconfig-nextjs 1.1.7
TypeScript configuration for Next.js applications with App Router and Pages Router support
7 versions - Latest release: 3 months ago - 16 downloads last month - 1 maintainer
error-if-not-float 2.0.0
Function triggers error if argument is not float of type 'number'
2 versions - Latest release: over 5 years ago - 2 dependent packages - 4 dependent repositories - 17 downloads last month - 0 stars on GitHub - 1 maintainer
@markdrei/ironguard-typescript-locks 0.2.3
IronGuard: Unbreakable TypeScript lock system with compile-time deadlock prevention and runtime m...
6 versions - Latest release: 5 months ago - 452 downloads last month - 0 stars on GitHub - 1 maintainer
@jmlweb/tsconfig-node 1.0.6
TypeScript configuration for Node.js and CLI projects. Extends @jmlweb/tsconfig-base with Node.js...
7 versions - Latest release: 3 months ago - 29 downloads last month - 1 maintainer
v8type 0.1.0
Expose V8 C++ type checking to JS
1 version - Latest release: over 13 years ago - 1 dependent package - 2 dependent repositories - 8 downloads last month - 3 stars on GitHub - 1 maintainer
@jmlweb/tsconfig-astro 1.1.5
TypeScript configuration for Astro projects with JSX support and modern defaults
7 versions - Latest release: 3 months ago - 364 downloads last month - 1 maintainer
@tringlyman/template-npm-package 1.0.3
NPM package template using JavaScript and JSDoc for type-checking and documentation
4 versions - Latest release: 7 months ago - 59 downloads last month - 1 maintainer
is-api 1.0.1
Tiny javascript library that you can extend with your own type checking methods.
3 versions - Latest release: over 8 years ago - 1 dependent package - 1 dependent repositories - 25 downloads last month - 3 stars on GitHub - 1 maintainer
pylance-mcp-server 1.1.0
Pyright/Pylance language server for MCP - Enhanced Python IntelliSense for Claude Desktop
2 versions - Latest release: 3 months ago - 109 downloads last month - 1 maintainer
@dworthen/bycontract 2.0.8
argument validation library based on JSDOC syntax
1 version - Latest release: about 6 years ago - 3 dependent packages - 9 downloads last month - 31 stars on GitHub - 1 maintainer
node-red-contrib-ts 1.2.6
Fast TypeScript node with type checking for Node-RED
10 versions - Latest release: 6 months ago - 566 downloads last month - 8 stars on GitHub - 1 maintainer
@cook-step/schema-validator 0.1.0
JSON Schema validation and compatibility checker for CookStep
1 version - Latest release: 7 months ago - 11 downloads last month - 1 maintainer
@sequentialos/validation 1.0.0
Consolidated validation engine combining schema validation, param validation, type checking, and ...
1 version - Latest release: 4 months ago - 2 downloads last month - 1 maintainer
@hugsylabs/plugin-typescript 0.0.7
TypeScript development support for Hugsy - type checking and compilation
4 versions - Latest release: 7 months ago - 58 downloads last month - 2 stars on GitHub - 1 maintainer
typeforce-buffer 1.18.0
Another biased type checking solution for Javascript
1 version - Latest release: almost 3 years ago - 1 dependent package - 7 downloads last month - 22 stars on GitHub - 1 maintainer
@liautaud/typezod 2.0.0
Zod-like DSL for comparing TypeScript compiler types against user-defined schemas
3 versions - Latest release: about 1 month ago - 0 stars on GitHub - 1 maintainer
@bisham/predicates 0.0.4
A comprehensive collection of strongly-typed predicate functions and type guards for TypeScript, ...
4 versions - Latest release: 3 months ago - 19 downloads last month - 0 stars on GitHub - 1 maintainer
@cryptexlabs/is-what 5.0.8
JS type check (TypeScript supported) functions like `isPlainObject() isArray()` etc. A simple & s...
5 versions - Latest release: over 1 year ago - 1.91 thousand downloads last month - 0 stars on GitHub - 2 maintainers
@tiaanduplessis/type 2.0.0
Basic type checking
2 versions - Latest release: over 7 years ago - 4 dependent packages - 2 dependent repositories - 17 downloads last month - 1 stars on GitHub - 1 maintainer
@ryanmorr/kind 0.1.0
Type checking differently
1 version - Latest release: almost 2 years ago - 5 downloads last month - 1 stars on GitHub - 1 maintainer
@ayonli/type-guard 0.1.2
Runtime type checking for JavaScript variables and functions.
3 versions - Latest release: over 1 year ago - 6 downloads last month - 0 stars on GitHub - 1 maintainer
@leglaine/node-types 1.0.0
A highly composable runtime type checking library for JavaScript and Node.js.
1 version - Latest release: 5 months ago - 1 maintainer
@wistia/type-guards 0.9.3
Type guards
148 versions - Latest release: 4 months ago - 1 dependent package - 305 thousand downloads last month - 3 maintainers