https://github.com/nock/propagate

Propagate events from one event emitter into another
https://github.com/nock/propagate

emitter event eventemitter events propagation

Last synced: 8 months ago
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Propagate events from one event emitter into another

• Host: GitHub
• URL: https://github.com/nock/propagate
• Owner: nock
• License: mit
• Created: 2013-01-08T16:44:19.000Z (over 13 years ago)
• Default Branch: master
• Last Pushed: 2022-12-08T21:48:54.000Z (over 3 years ago)
• Last Synced: 2025-09-28T03:34:33.459Z (9 months ago)
• Topics: emitter, event, eventemitter, events, propagation
• Language: JavaScript
• Size: 1.56 MB
• Stars: 24
• Watchers: 5
• Forks: 3
• Open Issues: 16
• Metadata Files:
  • Readme: README.md
  • Contributing: CONTRIBUTING.md
  • License: LICENSE.md
  • Code of conduct: CODE_OF_CONDUCT.md

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README

          
# propagate

[![npm](https://img.shields.io/npm/v/propagate.svg?style=flat-square)][npmjs]

[![Build Status](https://img.shields.io/travis/nock/propagate/master.svg?style=flat-square)][build]

[![Coverage](https://img.shields.io/coveralls/github/nock/propagate.svg?style=flat-square)][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

const ee1 = new EventEmitter()

const 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

const ee1 = new EventEmitter()

const ee2 = new EventEmitter()

const p = propagate(ee1, ee2)

// ...

p.end()

```

## Only propagate certain events:

```javascript

const ee1 = new EventEmitter()

const ee2 = new EventEmitter()

const p = propagate(['event1', 'event2'], ee1, ee2)

```

## Propagate certain events as other events:

```javascript

const ee1 = new EventEmitter()

const ee2 = new EventEmitter()

const p = propagate(

  {

    event1: 'other-event1',

    event2: 'other-event2',

  },

  ee1,

  ee2

)

```

# License

MIT