simple vainilla JS util to call a function each N milliseconds

loop.js

const loop = {
  timer: null,
  count: 0,
  start(fn, time=1000, limit = 100) {
    fn(this.stop.bind(this), this.count);
    this.count++;
    if (this.count < limit) {
      this.timer = setTimeout(() => this.start(fn, time, limit), time)
    } else {
      this.stop()
    }
  },
  reset() { this.count = 0 },
  stop() {
    clearTimeout(this.timer);
    this.reset()
  }
}

// usage: 
function fn(stop, count) {
  console.log(`time: ${count}`)
  // if (sth) stop()
}

// default 1000 ms
loop.start(fn)
// each 500 ms
loop.start(fn, 500)
// only 10 times
loop.start(fn, 500, 10)


// also in any moment one can run:
loop.stop()