deka-dom-el/docs/components/examples/signals/signals.js

import { S } from "deka-dom-el/signals";
// PART 1 — `signal` represents a reactive value
const signal= S(0);
// PART 2 — just reacts on signal changes
S.on(signal, console.log);
// PART 3 — just updates the value
const update= ()=> signal.set(signal.get()+1);

update();
const interval= 5*1000;
setTimeout(clearInterval, 10*interval,
	setInterval(update, interval));