Problem with a for loop with countdown in node.js

Question

I have the following code and I have tried everything, but I can't find the solution, I hope someone can help me.

So far the code executes the fRoll.roll, enters the FOR loop and executes the countdown of the EventEmitter, at the end it executes the fRoll.roll again, but the For loop is executed without respecting the time of the setInterval, which corresponds to the startTimer () of the EventEmitter.

My question is how can I make between each iteration of the loop wait for the setInterval of the EventEmitter and then execute the listeners.

---

  const appGlobal = async (page, website) => {
  const { EventEmitter } = require('events');

  try {

    class CountDownRoll extends EventEmitter {
      constructor(CountDownRollTime) {
        super();
        this.CountDownRollTime = CountDownRollTime;
        this.currentTime = 0;
      }

      startTimer() {
        const timer = setInterval(() => {
          this.currentTime++;
          this.emit('update', this.currentTime);

          // Check if CountDownRoll has reached to the end
          if (this.currentTime === this.CountDownRollTime) {
            clearInterval(timer);
            this.emit('roll');
          }

          // Check if CountDownRoll will end in 10 minutes
          if (this.currentTime === this.CountDownRollTime - 600) {
            this.emit('end-soon');
          }
        }, 1000);
      }
    }

    //======================================================
    // this code is executed
    const fRoll = require('../task/roll')(page, website)
    fRoll.roll
    //======================================================

    // I need this loop to repeat itself X number of times and in each iteration,
    // wait for the countdown before executing the codes.

    const count = 10
    for (let start = 1; start < count; start++)

      const myCountDownRoll = new CountDownRoll(3600);

      // Countdown
      myCountDownRoll.on('update', (timer) => {
        console.log(`${timer} seconds has been passed since the timer started`);

        // code that performs at the end of the countdown
        myCountDownRoll.on('roll', () => {
          console.log('✓ CountDownRoll is completed');

          //======================================================
          // this code is executed
          const fRoll = require('../task/roll')(page, website)
          fRoll.roll
          //======================================================
        });

        // Code that performs when reaching a specific time of the countdown
        myCountDownRoll.on('end-soon', () => {
          console.log('✓ Count down will be end in 600 seconds');

          // Code to execute here
        });

        myCountDownRoll.startTimer();

      }


    } catch (e) {
      console.log('Error intro app-global:', e)

    }
  }

module.exports = appGlobal

---

What happens to me is that it is executed 10 times for each time the listener of the countdown event is executed.

Answer 1

I have redone the code for a sleep function, as I have not found a way to use thestartTimer ()of the EventEmitter as a condition for each iteration of the loop.

---

const appGlobal = async (page, website) => {

try {

async function sleep(sec) {
  return new Promise((resolve) => {
    setTimeout(function () {
      resolve()
    }, sec * 1000)
  })
}

async function roll() {
  let count = 10000
  for (let start = 1; start < count; start++) {

    // We call the roll
    const freeRoll = require('../task/roll')(page, website)
    freeRoll.roll

    let random = Math.round(Math.random() * 8)
    console.log("Number is:" + " " + random)

    if (random === 3) {

      // We call the wine
      const fwine = require('../task/wine')(page, website)
      fwine.wine

      await sleep(3600)
    } else {
      await sleep(3600)
    }
  }

}

roll();

} catch (e) {
console.log('Error intro app-global:', e)

 }

}

module.exports = appGlobal