https://github.com/tootallnate/node-event-hijack

Hijacks the specified EventEmitter event
https://github.com/tootallnate/node-event-hijack

Last synced: 22 days ago
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Hijacks the specified EventEmitter event

• Host: GitHub
• URL: https://github.com/tootallnate/node-event-hijack
• Owner: TooTallNate
• License: mit
• Created: 2013-02-15T23:24:51.000Z (almost 12 years ago)
• Default Branch: master
• Last Pushed: 2013-02-16T18:50:46.000Z (almost 12 years ago)
• Last Synced: 2024-04-26T21:23:00.495Z (9 months ago)
• Language: JavaScript
• Size: 133 KB
• Stars: 3
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: History.md
  • License: LICENSE

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README

        
node-event-hijack

=================

### Hijacks the specified EventEmitter event

[![Build Status](https://travis-ci.org/TooTallNate/node-event-hijack.png?branch=master)](https://travis-ci.org/TooTallNate/node-event-hijack)

Hijacks the specified EventEmitter event name.

Installation

------------

``` bash

$ npm install event-hijack

```

Example

-------

``` javascript

var hijack = require('event-hijack');

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

// our test subject "emitter" instance

var emitter = new EventEmitter();

// you can use the emitter normally

emitter.on('thing', function () {

  console.log('got "thing"');

});

emitter.emit('thing');

// once you "hijack" the event, subsequent listeners added for that

// event will *not* be added as regular listeners for that event

var emitThing = hijack(emitter, 'thing', function () {

  console.log('this is an *original* "thing" event');

});

// this will *not* be a "thing" listener. instead, you must

// invoke `emitThing()` for this callback to be invoked

emitter.on('thing', function () {

  console.log('this is a *hijacked* event listener');

});

// emit a fake "thing" event, the original listener will not be invoked,

// but the hijacked listener *will* be invoked

emitThing();

```