0.0.1 • Published 11 years ago
event-hijack v0.0.1
node-event-hijack
Hijacks the specified EventEmitter event
Hijacks the specified EventEmitter event name.
Installation
$ npm install event-hijack
Example
var hijack = require('event-hijack');
var EventEmitter = require('events').EventEmitter;
// our test subjet "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();
0.0.1
11 years ago