Compile objects with duplicate keys to valid strict ES5

Compile regular expressions using duplicate named groups to index-based groups.

DOM events data scraped from MDN

remark-lint rule to warn on duplicate definitions

Parser for Github, GitLab and Bitbucket issues actions, references and mentions

remark-lint rule to warn on duplicate headings

Node's event emitter for all engines.

remark-lint rule to warn on duplicate headings in a section

Agent skill provider registry for the DeepSeek Harness

A Gherkin linter/validator written in javascript

Webpack plugin that warns you when multiple versions of the same package exist in a build.

Simple and modern async event emitter

Get an event when you're being sent data or asked for it.

ESLint plugin for Angular Templates

remark-lint rule to warn on definitions that define the same urls

rehype plugin to remove duplicates in attribute values with unique tokens

Flowtype linting rules for ESLint.

Node's event emitter for all engines.

Node's event emitter for all engines.

EventEmitter3 focuses on performance while maintaining a Node.js AND browser compatible interface.