Node.js · Middle · Question 23 of 75

How do you wait for one event as a promise?

1await emitter.on("ready")
2await emitter.wait("ready")
✓Correct answer: const [value] = await once(emitter, "ready") from node:events

Explanation

events.once resolves with the event arguments and rejects if the emitter emits error first. events.on gives an async iterator for many events.

Further reading

Node.js API: Events ↗

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