Size and Performance
- eventemitter3:
eventemitter3is designed for high performance with a very small footprint, making it one of the fastest event emitters available, ideal for performance-critical applications. - eventemitter2:
eventemitter2is slightly larger than basic emitters but offers better performance for complex event handling, especially with its support for wildcard events and namespaces. - mitt:
mittis extremely small (just 200 bytes) and fast, making it one of the most lightweight event emitters available. Its simplicity ensures minimal performance impact, making it ideal for high-frequency event handling. - event-emitter:
event-emitteris a lightweight library with minimal overhead, making it suitable for applications where performance is important but advanced features are not required. - tiny-emitter:
tiny-emitteris a small library (about 1KB) that provides efficient event handling with low overhead. It is designed to be fast and lightweight, suitable for applications where performance is a concern.
Feature Set
- eventemitter3:
eventemitter3focuses on providing a fast and efficient event handling system with a simple API. It supports multiple listeners, listener removal, and event emission, but does not include advanced features like namespaces or wildcards, keeping it lightweight and easy to use. - eventemitter2:
eventemitter2offers a rich feature set, including support for wildcard events, namespaces, and the ability to set maximum listeners to prevent memory leaks. This makes it more versatile for complex applications that require advanced event handling. - mitt:
mittprovides a very simple API for emitting and listening to events. It supports multiple listeners per event and allows for easy removal of listeners. However, it does not include advanced features like namespaces, wildcards, or error handling, which keeps it minimal but limits its functionality for more complex use cases. - event-emitter:
event-emitterprovides basic event emitting and listening capabilities, allowing for simple one-to-one and one-to-many event handling. It does not include advanced features like namespaces or wildcard events, keeping the API simple and straightforward. - tiny-emitter:
tiny-emittersupports multiple listeners, listener removal, and provides a straightforward API for event handling. It is simple and easy to use, but does not include advanced features like namespaces or wildcard events, making it suitable for projects that need basic event handling without complexity.
Ease of Use: Code Examples
- eventemitter3:
Basic usage of
eventemitter3const EventEmitter = require('eventemitter3'); const emitter = new EventEmitter(); // Simple event handling emitter.on('event', () => console.log('Event triggered!')); emitter.emit('event'); - eventemitter2:
Basic usage of
eventemitter2const EventEmitter2 = require('eventemitter2').EventEmitter2; const emitter = new EventEmitter2(); // Wildcard event handling emitter.on('user.*', (data) => console.log('User event:', data)); emitter.emit('user.login', { username: 'Alice' }); - mitt:
Basic usage of
mittconst mitt = require('mitt'); const emitter = mitt(); // Simple event handling emitter.on('event', () => console.log('Event triggered!')); emitter.emit('event'); - event-emitter:
Basic usage of
event-emitterconst EventEmitter = require('event-emitter'); const emitter = EventEmitter(); // Simple event handling emitter.on('event', () => console.log('Event triggered!')); emitter.emit('event'); - tiny-emitter:
Basic usage of
tiny-emitterconst Emitter = require('tiny-emitter'); const emitter = new Emitter(); // Simple event handling emitter.on('event', () => console.log('Event triggered!')); emitter.emit('event');
