Tell me about your work experience: where have you worked, and why are you changing jobs?
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Frontend
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Why does using setTimeout(fn, 0) help avoid blocking the UI, and why does creating many promises (microtasks) not? What is the difference between macro-tasks and micro-tasks in the Event Loop?
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The team is divided into sub-teams — which one can I join and how many frontends are there?
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What state manager is used in the project?
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What is the difference between null and undefined?
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fetchAll(['url1', 'url2'], (results) => { console.log('Data for all links', results); }); function fetchAll(urls) { const promises = urls.map((url) => { fetch(url).then((res) => res.json()) }) const data = Promise.all(promises).then((response) => { if (!response.ok) { throw new Error('error') } return response }) console.log(data) }
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If you have free time and two tasks on the board — a technical (refactoring) and a product one with the same priority — which one would you choose?
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What does typeof null return?
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Promise.reject('Api Error') .then(data => console.log('ok')) .catch(error => { console.log(error); return '1'; }) .then(data => { console.log(data); });
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Tell us more about offline functionality: how does data saving work in IndexedDB when the internet is lost?
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189
Have you had tasks related to website performance optimization? How did you diagnose and solve slow loading issues?
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178
Do you know what Feature Sliced Design (FSD) is?
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What are your professional development plans for the next 3–5 years? What areas are you interested in?
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There are three anti-patterns in the handleCityChange function on line 52. Find and explain them.
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Tell about batching in React. Where have you encountered it in practice?
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How would you diagnose a memory leak or unnecessary re-renders of a component in React?
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Why is the async keyword needed before a function? What does it do?
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Implement a delay(ms) function that returns a promise resolving after the specified time.
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Do you use AI tools in work and personal life, and how do you feel about them?
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What data types are available in Java?
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