Info on the properties and attributes of the web platform

Define a non-enumerable property on an object. Uses Reflect.defineProperty when available, otherwise Object.defineProperty.

One-shot oxlint plugin bundle: registers every architecture rule in the DMMF family (cell taxonomy, property testing, test hygiene, test placement, and all effect-* cell plugins) under a single entrypoint, excluding the core junk drawer.

Simple and complete React DOM testing utilities that encourage good testing practices.

CSS vendor prefix detection and property feature testing.

Simple and complete DOM testing utilities that encourage good testing practices.

Custom jest matchers to test the state of the DOM

Fire events the same way the user does

Property based testing framework for JavaScript (like QuickCheck)

Property testing for Tap using fast-check

Delightful JavaScript Testing.

Delightful JavaScript Testing.

Define a lazily evaluated property on an object

Detect whether a terminal supports color

hast utility to check if a node has a property

ESLint plugin to follow best practices and anticipate common mistakes when writing tests with Testing Library

A JS implementation of JSONPath with some additional operators

Ensure that reserved words are quoted in object property keys

HTML and SVG DOM property configs used by React.

This plugin transforms checks for a private property in an object