Svelte · Middle · Question 66 of 75

What does the second argument of readable do?

const time = readable(new Date(), (set) => {
  const id = setInterval(() => set(new Date()), 1000);
  return () => clearInterval(id);
});

• ✓Correct answer: A start function called when the first subscriber appears; its returned function runs when the last one unsubscribes
• 2An equality function
• 3An initial value fallback