clarinet0.12.6SAX based evented streaming JSON parser in JavaScript (browser and node)
eventemitter35.0.1EventEmitter3 focuses on performance while maintaining a Node.js AND browser compatible interface.
oboe.js2.1.5Oboe.js reads json, giving you the objects as they are found without waiting for the stream to finish
microevent1.0.0event emitter micro library (works in node+browser)
PubSub4.0.0Javascript implementation of the Publish/Subscribe pattern.