@osjs/event-emitter/README.md

A simple event emitter

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[OS.js](https://www.os-js.org/) is an [open-source](https://raw.githubusercontent.com/os-js/OS.js/master/LICENSE) web desktop platform with a window manager, application APIs, GUI toolkit, filesystem abstractions and much more.

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# OS.js EventEmitter

This is a EventEmitter implementation for OS.js.

## API

```javascript
on('event-name', () => {}); // Fired every time event is emitted
once('event-name', () => {}); // Fires only once and is forgotten
off('event-name', () => {}); // Removes listener
off('event-name'); // Removes all listeners of this type
off(); // Removes all listeners

on('event-name', () => {}, {persist: true}); // Will not be removed unless forced
off('event-name', () => {}, true); // Force removal
```

## Contribution

* **Sponsor on [Github](https://github.com/sponsors/andersevenrud)**
* **Become a [Patreon](https://www.patreon.com/user?u=2978551&ty=h&u=2978551)**
* **Support on [Open Collective](https://opencollective.com/osjs)**
* [Contribution Guide](https://github.com/os-js/OS.js/blob/master/CONTRIBUTING.md)

## Documentation

See the [Official Manuals](https://manual.os-js.org/) for articles, tutorials and guides.

## Links

* [Official Chat](https://gitter.im/os-js/OS.js)
* [Community Forums and Announcements](https://community.os-js.org/)
* [Homepage](https://os-js.org/)
* [Twitter](https://twitter.com/osjsorg) ([author](https://twitter.com/andersevenrud))
* [Facebook](https://www.facebook.com/os.js.org)
* [Docker Hub](https://hub.docker.com/u/osjs/)