Frontend · Junior · Theory

What is a promise, and how does async/await differ from a then chain?

~4 min by voice

How to approach it

The interviewer checks whether the candidate understands the asynchrony model in JS: what a promise is and its lifecycle, that async/await is just syntax on top of the same promises, how to handle errors, and how not to lose parallelism.

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Answers0

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Topics

javascript promises

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Answer by voice

The interviewer will ask this question and listen. Think out loud and ask for a hint if you need one. When you're done, pause or tap “That's my answer”. In about a minute, your score and the points you covered show up here.

Best with headphones · ~4 min