Description

Throttle is the act of only letting the user take an action once in a given period of time.
?

Reach for when

You want to prevent duplicate actions on things like buttons.

Code

function debounce(fn, delay) {
  let timer;
  return function (...args) {
    clearTimeout(timer);
    timer = setTimeout(() => fn.apply(this, args), delay);
  };
}