The MDN page inventory as a big JSON object.

HTML parser and non-strict validator

Compatibility utilities for ESLint

ESLint JavaScript language implementation

TypeScript definitions for deep-diff

TypeScript definitions for mocha

TypeScript definitions for node

TypeScript definitions for yargs

Definitions of the web platform for cross-references purpose

Custom error messages in JSON Schemas for Ajv validator

Format validation for Ajv v7+

output coverage reports using Node.js' built in coverage

Compare semver version strings to find greater, equal or lesser.

Javascript utility for calculating deep difference, capturing changes, and applying changes across objects; for nodejs and the browser.

A JavaScript text diff implementation.

Test if an ES module is run directly (require.main replacement)

Import with sanity.

JSDoc linting rules for ESLint.

Enforce best practices for JavaScript promises

More than 300 powerful ESLint rules

deterministic `JSON.stringify()` - a faster version of substack's json-stable-strigify without jsonify

The fastest directory crawler & globbing alternative to glob, fast-glob, & tiny-glob. Crawls 1m files in < 1s

compile json schema to typescript typings

Simple git hooks manager

A markdown parser built for speed

simple, flexible, fun test framework

TypeScript is a language for application scale JavaScript development

Tooling which enables you to use TypeScript with ESLint

Curated list of Web platform features

Simple XML to JavaScript object converter.

yargs the modern, pirate-themed, successor to optimist.