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event-done
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Extension of EventEmitter which allows to pass callback that will be invoked when all listeners completed
var EventDone = require('event-done').EventDone;
var event = new EventDone();
event.on('test', function (data, next) {
console.log('I am listener one');
next(null);
});
event.on('test', function (data, next) {
console.log('I am listener two');
next(null);
});
event.on('test', function (data, next) {
console.log('I am listener three');
setTimeout(next, 100);
});
event.emit('test', {some: 'data'}, function finish(error) {
console.log('I am called only once after all three listeners');
console.log('Error is empty:', error);
});
var EventDone = require('event-done').EventDone;
var EventDoneTimeoutError = require('event-done').EventDoneTimeoutError;
require('event-done').timeout = 100;
console.log('Fallback timeout can be set to anything.',
'Default is 30s and we set it to 100ms');
var event = new EventDone();
event.on('test', function (data, next) {
console.log('I am listener one', 'Oops, I forgot to call "next"');
});
event.on('test', function (data, next) {
console.log('I am listener two');
next(null);
});
event.emit('test', {some: 'data'}, function finish(error) {
console.log('I am called after 100ms "fallback" timeout');
console.log('error is not empty and is instance if EventDoneTimeoutError:',
error instanceof EventDoneTimeoutError);
});
var EventDone = require('event-done').EventDone;
var event = new EventDone();
event.on('test', function (data, next) {
console.log('I am listener one');
next(new Error('OMFG!'));
});
event.on('test', function (data, next) {
console.log('I am listener two',
'I will still output this to console, but after final callback');
next(null);
});
event.emit('test', {some: 'data'}, function finish(error) {
console.log('I am called after first listener called');
console.log('error is not empty and it is "OMFG!":',
(error instanceof Error) && error.message === 'OMFG!');
});
FAQs
Extension of EventEmitter which allows to pass callback that will be invoked when all listeners completed
The npm package event-done receives a total of 2 weekly downloads. As such, event-done popularity was classified as not popular.
We found that event-done demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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