Function clearTimeout

lib/timers.js:136–149

* Cancels a timeout. * @param {Timeout | string | number} timer * @returns {void}

(timer)

 * @returns {void}
 */
function clearTimeout(timer) {
  if (timer?._onTimeout) {
    timer._onTimeout = null;
    unenroll(timer);
    return;
  }
  if (typeof timer === 'number' || typeof timer === 'string') {
    const timerInstance = knownTimersById[timer];
    if (timerInstance !== undefined) {
      timerInstance._onTimeout = null;
      unenroll(timerInstance);
    }
  }
}

/**
 * Schedules repeated execution of `callback`