https://github.com/moeriki/node-once-then

https://github.com/moeriki/node-once-then

Last synced: 7 days ago
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• Host: GitHub
• URL: https://github.com/moeriki/node-once-then
• Owner: moeriki
• License: mit
• Created: 2017-03-20T09:01:46.000Z (almost 8 years ago)
• Default Branch: master
• Last Pushed: 2019-07-23T12:34:12.000Z (over 5 years ago)
• Last Synced: 2024-12-30T11:03:08.201Z (10 days ago)
• Language: JavaScript
• Size: 112 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        


  
once-then

  
Add onceThen to your emitter to convert an event to a Promise.


  


    

      

    

    

      

    

    

      

    

    

      

    

  


## Installation

```

npm install --save once-then

```

## Usage

```js

const EventEmitter = require('events').EventEmitter;

const onceThen = require('once-then');

```

`onceThen` works with the NodeJS event emitter or any events implementation that has its `once` method backwards compatible with NodeJS events.

```js

const emitter = new EventEmitter();

onceThen(emitter, 'myEventName').then(() => {

  //

});

emitter.emit('myEventName');

```

### Register

Register `onceThen` on an object.

```js

onceThen.register(EventEmitter.prototype);

const emitter = new EventEmitter();

emitter.onceThen('myEventName').then(() => {

  //

});

emitter.emit('myEventName');

```