Small publish & subscribe class
npm i --save scoped-pubsub
import PubSub from 'scoped-pubsub';
const pubsub = new PubSub();
import PubSub from 'scoped-pubsub';
const pubsub = new PubSub();
pubsub.subscribe('event', value => { console.log(value) })
pubsub.publish('event', 'hello')
pubsub.unsubscribe('event', value => { console.log(value) })
pubsub.hasSubscribers('event')
await pubsub.once('event')
verbose
: when false only fires after value change
pubsub = new PubSub({
verbose: false // default: true
})
name
: name of the channel to subscribe to
handler
: method
context
: context
pubsub.subscribe('event-name', data => {
console.log(data);
})
name
: name of the channel to unsubscribe
handler
: method
context
: context
pubsub.unsubscribe('event-name', data => {
console.log(data);
})
name
: name of the channel to publish to
handler
: method
context
: context
pubsub.publish('event-name', 'data')
name
: name of the channel to publish to
await pubsub.once('event-name')
name
: name of the channel to publish to
pubsub.hasSubscribers('event-name')