Custom webpack builders for Angular build facade. Allow to modify Angular build configuration without ejecting it

Angular custom directives for validation

A simple react form validator inspired by Laravel validation.

A lightweight frontend JavaScript SDK for real-time input validation with built-in support for Malaysian IC, car plates, postcodes, and extensible custom validators

Converts OpenAPI Schema Object to JSON Schema

`npm install @tryghost/validator --save`

A Credit Card Directives and Reactive Form Validators package for Angular X (4+)

Example custom validation plug-in for the Model Server.

mashup of lodash with checkit module

HTML Custom Elements Polyfill

Vue 3 utility library with declarative form validation using decorators, formatters, and custom validators. Build type-safe forms faster with automatic validation.

the complete solution for node.js command-line programs

Code validation

Validates emails based on regex, common typos, disposable email blacklists, DNS records and SMTP server response.

A collection of GraphQL custom scalars supporting cleanup, validation, and defaults via fluent api

Day.js conversion and validation support for mobx-binder

A stylelint rule to disallow usage of unknown custom properties

Node's path builtin module exposed as dual ESM/CJS and browser-compatible out of the box.

The Brazilian document validation library for TypeScript — CPF, CNPJ (alphanumeric), NF-e, PIX, boleto, IE (27 UFs), offline IBGE/ANP/NCM/CST/LC116 reference data, and 15+ more. Zero deps, fully typed, never throws.

Create custom JavaScript errors that also match instanceof.