Nested promises

run_timer = true

const topPromise = (value) => new Promise((resolve, reject) => {
  return bottomPromise(value)
  .then((result) => resolve(result))
  .catch((error) => reject(error))
})

const bottomPromise = (value) => new Promise((resolve, reject) => {
  if (value) {
    var count = 0;
    const repetitions = 4;
    const pause = 1000;

    interval = setInterval( () => {
      if (count === repetitions - 1)
        clearInterval(interval)
      else
        console.log(count++ + 1)
    }, pause)

    setTimeout( () => {
      resolve("OK")
    }, pause * repetitions);
  }
  else reject("KO");
})

topPromise(run_timer)
.then((result) => console.log(result))
.catch((error) => console.log(error))