primus/eventemitter3

EventEmitter3 is a high-performance EventEmitter implementation for Node.js and browsers, designed as a drop-in replacement for the default Node.js EventEmitter with improved speed. It removes some less commonly used features like domain support and setMaxListeners, while adding support for custom event contexts to avoid the need for fn.bind. This library is ideal for developers seeking better performance in event-driven applications without changing existing EventEmitter-based code.