Svelte · Junior · Question 37 of 76

How do you clean up a timer created in $effect?

$effect(() => {
  const id = setInterval(tick, 1000);
  return () => clearInterval(id);
});

• ✓Correct answer: Return a teardown function; it runs before the effect re-runs and when the component is destroyed
• 2Timers are cleared automatically
• 3Call onDestroy inside the effect