re-js / evemin Goto Github PK

import { event } from 're-event/entity';

const ev = event();

const f = ev.map(v => v * 10).filter(v => v);

f.listen(v => console.log(v));

import { event, map, filter, listen } from 'rvent';

const ev = event();

const f = event(ev, map(v => v * 10), filter(v => v));
listen(f, v => console.log(v));

import E from 're-event';

const ev = E.event();
const f = E.event(ev, E.map(v => v * 10), E.filter(v => v));
E.listen(f, v => console.log(v));

(new Set()).add(subscriber)

const fn = (v) => (listener(v), top_fn(v));
top_fn = fn;

const fire_stack = [];
const call_node(v) => {
  // stack_start
  top_fn(v);
  // collect fires

const listen = (ev, fn) => {
  if (ev[1].indexOf(fn) === -1) ev[1] = ev[1].concat(fn);
  return () => {
    ev[1] = ev[1].filter(f => f !== fn);
  }
}

const listen = (ev, fn) => (
  ev[1].indexOf(fn) === -1 && ev[1] = ev[1].concat(fn),
  attach(() => (ev[1] = ev[1].filter(f => f !== fn)))
)

const a = event()

const b = event(a, map(v => v + 1), filter(v => v) /*, listen(v => console.log(v) */)

const unsub = listen(b, v => console.log(v))

listen: (ev, fn) => (
    ev[0].indexOf(fn) < 0 && (ev[0] = ev[0].concat(fn)),
    () => {
      let i = ev[0].indexOf(fn)
      i > -1 && ev[0].splice(i, 1) // error here with iteration exactly all listeners in "ev" function
    }
  )

event
listen