Have you worked with React.lazy? For what purpose and how to use it?
Middle+
102
Frontend
6388
681
How suitable are you for working with routine, monotonous interfaces in banking systems alongside technically interesting tasks? Is this a blocker?
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100
Why is it necessary to bind methods in React class components when working with event handlers?
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99
How comfortable is your level of English for working in an international team?
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97
Implement a universal React hook useFetch for GET requests. Think through a convenient API for the hook, returned data/loading/error, handling HTTP errors, and refetching data when the URL changes.
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95
Tell us about things in your work that you are proud of: technical or product tasks, interesting integrations, and achievements.
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95
Implement a debounce function — a decorator that returns a function which, when called multiple times in a row, only executes the last call after a specified delay.
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94
What went wrong at your current job and why are you looking for a new one?
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90
Write a function that checks if there are duplicates in an array.
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88
Review the component: fix issues with key during list rendering, useEffect, data loading, error handling, and loading/empty states.
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88
Have you used AI agents in development: new approaches, DevOps practices, or just as an AI chat?
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86
When is it better to choose polling for chat implementation, and when WebSocket? What are their differences?
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84
Are you familiar with HTTP statuses 301 and 302? What are their differences and how does the browser understand where to perform the redirect?
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82
Why pass a function as the initial value to useState?
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80
What are your expectations from the new workplace and why are you considering changing jobs?
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79
Have you ever had to create adaptive interface versions and animations?
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78
Fix the recursive function that flattens a nested array: it currently loses elements.
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76
Tell me about your last place of work and main tasks.
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73
Write a function that sums two numbers in two ways: sum(2, 5) and sum(2)(5). Maximum two arguments.
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72
What most memorable tasks have you performed?
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70