Important: This documentation covers Yarn 1 (Classic).

For Yarn 2+ docs and migration guide, see yarnpkg.com.

keywords: validation

found 12,804 packages in 51ms

zod229.2mMIT4.3.6

TypeScript-first schema declaration and validation library with static type inference

colinhacks2 days agotypescript, schema, validation, type

npmGitHubHomepage

ajv614.5mMIT8.17.1

Another JSON Schema Validator

ajv-validator8 months agoJSON, schema, validator, validation

npmGitHubHomepage

css-tree171mMIT3.1.0

A tool set for CSS: fast detailed parser (CSS → AST), walker (AST traversal), generator (AST → CSS) and lexer (validation and matching) based on specs and browser implementations

csstreeabout 1 year agocss, ast, tokenizer, parser

npmGitHub

ajv-formats171.9mMIT3.0.1

Format validation for Ajv v7+

ajv-validatoralmost 2 years agoAjv, JSON-Schema, format, validation

npmGitHub

requires-port113.2mMIT1.0.0

Check if a protocol requires a certain port number to be added to an URL.

unshiftioover 3 years agoport, require, http, https

npmGitHub

Packages

debug-js debug

Lightweight debugging utility for Node.js and the browser

debug, log, debugger

lodash lodash

Lodash modular utilities.

modules, stdlib, util

facebook react

React is a JavaScript library for building user interfaces.

react

ljharb qs

A querystring parser that supports nesting and arrays, with a depth limit

querystring, qs, query, url

caolan async

Higher-order functions and common patterns for asynchronous code

async, callback, module, utility

babel babel-core

Babel compiler core.

6to5, babel, classes, const