Лучшие практики разработки приложений Твиттера?

class Timer {
  constructor(maxTime, startValue = 0) {
    // Actual timer value 1/10s (100ms)
    this.value = startValue;
    // Maximum time of the timer in s
    this.maxTime = maxTime * 10;
    this.timerRunning = false;
  }

  /**
   * Starts the timer. Increments the timer value every 100ms.
   * @param {number} interval in ms
   */
  startTimer(interval = 100) {
    if (!this.timerRunning) {
      let parent = this;
      this.timerPointer = setInterval(function() {
        if (parent.value < parent.maxTime) {
          parent.value++;
          //EventManager.fire('timerUpdated');
          $("span").text(parent.value / 10 + "/" + parent.maxTime / 10);
        } else {
          parent.stopTimer();
          //EventManager.fire('timeExceeded');
          $("button").text("Start");
          this.resetTimer();
          $("span").text("Countdown over");
        }
      }, interval);
      this.timerRunning = true;
    }
  }

  // Stops the Timer.
  stopTimer() {
    clearInterval(this.timerPointer);
    this.timerRunning = false;
  }

  // Resets the timer and stops it.
  resetTimer() {
    this.stopTimer();
    this.value = 0;
    $("span").text("0/" + this.maxTime/10);
    //EventManager.fire('timerUpdated');
  }

  // Resets the timer and starts from the beginning.
  restartTimer() {
    this.resetTimer();
    this.startTimer();
  }
}

let timer = new Timer(6);
$("#start-stop").click(function() {
  if (timer.timerRunning) {
    timer.stopTimer();
    $("#start-stop").text("Start");
  } else {
    timer.startTimer();
    $("#start-stop").text("Stop");
  }
});
$("#reset").click(function() {
  timer.resetTimer();
});

Start


Reset

Timer: