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await-event
Advanced tools
A really stupid utility I use frequently for event emitters.
Allows you to yield
an event and return the results.
I use this a lot of locking.
Note: you probably shouldn't use this for the error
event.
var PassThrough = require('stream').PassThrough
var stream = new PassThrough()
// you attach it directly on an event emitter
stream.await = require('await-event')
co(function* () {
var chunk = yield stream.await('data')
var chunk = yield stream.await('data')
var chunk = yield stream.await('data')
}).catch(noop)
stream.write('some chunk')
You can use awaitEvent without attach on an event emitter:
var EventEmitter = require('event')
var emitter = new EventEmitter()
co(function*() {
yield awaitEvent(emitter, 'ready')
}).catch(noop)
When use this for error
event, it will reject once error
event emitted:
var EventEmitter = require('event')
var emitter = new EventEmitter()
co(function*() {
// it will throw when `error` event emitted
yield awaitEvent(emitter, 'error')
}).catch(err => console.error(err.stack))
FAQs
yield an event with generators
The npm package await-event receives a total of 6,304 weekly downloads. As such, await-event popularity was classified as popular.
We found that await-event demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 5 open source maintainers collaborating on the project.
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