# event-center-js

> listen an event and fire an event

Latest version **1.2.1** (published 2022-12-06) · MIT license · 0 weekly downloads

## Install

```sh
npm install event-center-js
pnpm add event-center-js
yarn add event-center-js
bun add event-center-js
```

## Health

**Score 15/100 (F)** — status: abandoned.

Positive: no vulnerabilities.

Warnings: low downloads; no types; no esm support.

Negative: abandoned; low maintenance score.

## Facts

| | |
|---|---|
| Version | 1.2.1 |
| Published | 2022-12-06 |
| First published | 2022-12-05 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | none |
| Module format | CommonJS |
| Dependencies | 0 |
| Unpacked size | 6.5 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 0 |
| Author | huangtao |
| Maintainers | brucehuangtao |
| Keywords | eventcenter, event-on-and-fire, event-center |

## Links

- npm: https://www.npmjs.com/package/event-center-js
- Repository: https://github.com/cafutor/event-center-js
- Homepage: https://github.com/cafutor/event-center-js.git#readme
- Issues: https://github.com/cafutor/event-center-js.git/issues
- npm.io page: https://npm.io/package/event-center-js

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## Recent versions

- 1.2.1 (latest) — 2022-12-06
- 1.2.0 — 2022-12-05
- 1.1.0 — 2022-12-05
- 1.0.0 — 2022-12-05

## README

# event-center-js

### install

```
npm install event-center-js@latest --save
```

### useage

```javascript
import EventCenter from 'event-center-js';

const eventCenter = new EventCenter();

// first listener
eventCenter.on('eventA', (data) => {
  // processing data
  // ...
});

// second listener
eventCenter.on('eventA', (data) => {
  // processing data
  // ...
});

// all listeners will be called
eventCenter.fire('eventA', 1);

// remove latest event listener. eg:the second listener of eventA will be removed then the first one.
eventCenter.off('eventA');
eventCenter.off('eventA');

// the listener of eventB will be called once
eventCenter.once('eventB', (data) => {
  // processing data
  // ...
});

// the method eventCenter.on() will return a off method. call it will remove the listener
const off = eventCenter.on('eventC', (data) => {
  // processing data
  // ...
  off();
});
```

---
_Source: https://npm.io/package/event-center-js · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._