propagate

propagate

Propagate events from one event emitter into another.

Install

$ npm install propagate

Propagate

var ee1 = new EventEmitter()
var ee2 = new EventEmitter()
propagate(ee1, ee2)

ee2.on('event', function(a, b) {
  console.log('got propagated event', a, b)
})

ee1.emit('event', 'a', 'b')

Unpropagate

You can unpropagate by ending the propagation like this:

var ee1 = new EventEmitter()
var ee2 = new EventEmitter()
var p = propagate(ee1, ee2)

// ...

p.end()

Only propagate certain events:

var ee1 = new EventEmitter()
var ee2 = new EventEmitter()
var p = propagate(['event1', 'event2'], ee1, ee2)

Propagate certain events as other events:

var ee1 = new EventEmitter()
var ee2 = new EventEmitter()
var p = propagate(
  {
    event1: 'other-event1',
    event2: 'other-event2',
  },
  ee1,
  ee2
)

License

MIT

Similar packages

Other packages similar to propagate

eventemitter2

EventEmitter2 is an implementation of EventEmitter with additional features like namespaces, wildcards, and timesToListen. It offers more flexibility and functionality compared to 'propagate' which mainly focuses on forwarding events.

eventemitter3

EventEmitter3 is a high performance EventEmitter primarily focused on performance. While it does not offer direct event propagation like 'propagate', it is optimized for a high number of events and listeners, making it suitable for performance-critical applications.