@charliewilco/cyclops
v1.1.0
Published
<h6 align="center"> <img src="./cyclops.svg" /> </h6>
Downloads
1
Readme
Simple event emitter w. debugging that reminds me of require('events')
.
Rationale
There are lots of different implementations of an event emitter. The reason this exists is to extend the ability to have custom events.
import * as events from "events";
/**
* Represents a polling timeout
* @constructor
*/
class Poller<T> extends events.EventEmitter {
timeout: number;
constructor(timeout: number = 100) {
super();
this.timeout = timeout;
}
poll() {
setTimeout(() => this.emit("poll"), this.timeout);
}
onPoll(cb: () => void) {
this.on("poll", cb);
}
}
Installation
yarn add @charliewilco/cyclops
Usage Examples
Basic
const emit = new Cyclops({}, { debug: true });
let val = 0;
emit.subscribe("mock event", (n: number) => (val = n));
emit.emit("mock event", 18);
Polling
const emit = new Cyclops();
class Poller {
constructor(timeout = 500) {
this.timeout = timeout;
}
poll() {
setTimeout(() => emit.emit("poll"), this.timeout);
}
onPoll(cb) {
emit.subscribe("poll", cb);
}
}
let count = 0;
const poll = new Poller(1000);
poll.onPoll(() => {
count++;
console.log(count);
poll.poll();
});
poll.poll();