Leaking memory?

[mindplay-dk]

It looks like this library leaks memory?

import { T, now, log } from 'https://cdn.skypack.dev/timeline-monoid';

const a = T();
const b = (a).sync(a => a * 2);
const c = (a)(b).sync(([a, b]) => a + b);
const abc = (a)(b)(c);

function test() {
  const t = abc.sync(log);
  a[now] = 1;
  // NOTE: `t` falls out of scope here ...
}

test();

a[now] = 5; // ... but `log` still gets invoked

So, once you've added listeners with sync, you're stuck with them forever - there's no way to get rid of them?

If so, this is interesting as a proof of concept (and it's delightfully small) but it doesn't seem like this is going to be useful, for example, in user interfaces, where elements of the UI might get added or removed, be active or inactive, and so on?