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# propagate
[][npmjs]
[][build]
[][coverage]
[npmjs]: https://www.npmjs.com/package/propagate
[build]: https://travis-ci.org/nock/propagate
[coverage]: https://coveralls.io/github/nock/propagate
Propagate events from one event emitter into another.
## Install
```bash
$ npm install propagate
```
## Propagate
```javascript
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:
```javascript
var ee1 = new EventEmitter()
var ee2 = new EventEmitter()
var p = propagate(ee1, ee2)
// ...
p.end()
```
## Only propagate certain events:
```javascript
var ee1 = new EventEmitter()
var ee2 = new EventEmitter()
var p = propagate(['event1', 'event2'], ee1, ee2)
```
## Propagate certain events as other events:
```javascript
var ee1 = new EventEmitter()
var ee2 = new EventEmitter()
var p = propagate(
{
event1: 'other-event1',
event2: 'other-event2',
},
ee1,
ee2
)
```
# License
MIT
|
