You

Can you write a debounce function in TypeScript?

Assistant

Sure! Here's a small, fully-typed debounce that delays calling `fn` until it stops being invoked for `wait` ms:

function debounce<A extends unknown[]>(
  fn: (...args: A) => void,
  wait: number,
) {
  let timer: ReturnType<typeof setTimeout>;
  return (...args: A) => {
    clearTimeout(timer);
    timer = setTimeout(() => fn(...args), wait);
  };
}

You

Nice. How would I cancel a pending call?

Assistant

Return a `cancel` method alongside the debounced function and call `clearTimeout(timer)` from it — then `debounced.cancel()` drops any pending invocation. You'd typically wire that into a component's cleanup so it doesn't fire after unmount.