Validation

Validate a date

A GeoJSON Validation Library

A tiny javascript type testing tool

cjson - Commented JavaScript Object Notation. It is a json loader, which parses only valid json files, but with comments enabled. Useful for loading configs.

Code validation

JSON Schema validation for Human

A javascript code validator for DI based on eslint, implements di.code-validation.core API.

Featureful configuration management library for Node.js (nested structure, schema validation, etc.)

Convert Markdown to valid React Email template code.

Painless forms for Vue.js

A cross-browser / node.js validator powered by JSON Schema

Validate and visualize dependencies. With your rules. JavaScript, TypeScript, CoffeeScript. ES6, CommonJS, AMD.

A beautiful command-line prompt for node.js

Check whether a RegExp flag is supported

client for Node.js

webpack Validation Utils

GraphQL Code Generator plugin to generate form validation schema from your GraphQL schema

Declarative validations for JavaScript

Add-on to jQuery Validation to enable unobtrusive validation options in data-* attributes.

PropType validators that work with Immutable.js.

A library for validating credit card fields

Parse, validate, traverse, transform, and optimize Oniguruma regular expressions

Generate Zod schemas from Drizzle ORM schemas

Validate domain name

Configuration validation support for Okta JavaScript SDKs

TypeScript definitions for jquery.validation

Pretty ESLint formatter

Validate openapi documents.

Module AST validations

Test if an object has a specified property.

Test if a value is a string.

Test if a value is object-like.

Return a function which tests if every element in an array passes a test condition.

Test if a value is a Buffer object.

Test if a value is a function.

JSON Schema validation for Human

Test if a value is an object.

Test if a value is a plain object.

Test if a value is a regular expression.

Turn valid member expression property literals into plain identifiers

Turn valid property key literals to plain identifiers

React component to provide validation states to form fields

Ember computed property based validation library

Test if a value is a Float32Array.

Test if a value is a Float64Array.

Test if a value is a number.

ESLint shareable config for the Google style

React Hook Form error message component