Wait for it... a time-of-no-change based throttling pattern

wait-for-it-pattern.js

var
  WAIT_TIMER = 1750, // in MS
  waitForItTimer,
  waitForIt, whatYoureWaitingToInvoke;

whatYoureWaitingToInvoke = function _whatYoureWaitingToInvoke() {
  alert(`what you're waiting for!!`);
};

waitForIt = function _waitForIt() {
  window.clearTimeout(waitForItTimer);
  waitForItTimer = setTimeout(() => {
    whatYoureWaitingToInvoke();
  }, WAIT_TIMER);
};