Function cleanup

packages/core/src/util/callback_scheduler.ts:40–53

()

  let timeoutId: number;
  let animationFrameId: number;
  function cleanup() {
    callback = noop;
    try {
      if (animationFrameId !== undefined && typeof cancelAnimationFrame === 'function') {
        cancelAnimationFrame(animationFrameId);
      }
      if (timeoutId !== undefined) {
        clearTimeout(timeoutId);
      }
    } catch {
      // Clearing/canceling can fail in tests due to the timing of functions being patched and unpatched
      // Just ignore the errors - we protect ourselves from this issue by also making the callback a no-op.
    }
  }
  timeoutId = setTimeout(() => {
    callback();
    cleanup();