Frontend Developer Interview Questions

8,954 frontend developer interview questions shared by candidates

In TS/JS, supposing there are multiple async operations that need to be done at the same time, what would you use? If you use Promise.all, then it can yield error when one of the operations fails. If that is the case, what should you use instead? Then, what should you use when you want to receive the fastest respond from those operations and ignore the rest?
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Intern Frontend Developer

Interviewed at NCC Vietnam

2.5
Jul 2, 2025

In TS/JS, supposing there are multiple async operations that need to be done at the same time, what would you use? If you use Promise.all, then it can yield error when one of the operations fails. If that is the case, what should you use instead? Then, what should you use when you want to receive the fastest respond from those operations and ignore the rest?

1st round, react related, hooks, testing your knowledge of rendering and how to write custom hooks. So polish up on that. Know your react.useMemos, and what callbacks are for. Understand why re-rendering loops might occur.
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Senior Software Engineer (FrontEnd)

Interviewed at Ava Labs

4.3
Jun 6, 2024

1st round, react related, hooks, testing your knowledge of rendering and how to write custom hooks. So polish up on that. Know your react.useMemos, and what callbacks are for. Understand why re-rendering loops might occur.

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