EPAM Systems React Js Frontend Developer Interview Questions, Process, and Tips

• Q1. What projects or technologies I'm interested in?
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• Q2. How I describe my seniority ?
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• Q3. What was the most important work experience for you and why?
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• Q1. How can we adapt the frontend to different view of devices?
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• Q2. What is a closure in Javascript?
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• Q3. What are the advantages of using Typescript? mention your favorite features
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• Q4. Can you describe some Architectural Patterns ?
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• Q5. Can you describe some Design Patterns ?
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• Q6. Do you configured some part of a CI/CD pipeline?
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• Q7. Can you mention some popular hacker attacks?(xxs, sql injection, etc)
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• Q8. Solve a React problem, the goal is not trigger re-renders of a siblings components from a parent node, but avoiding the memo, useMemo, or useCallback react util...read more
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• Q9. Describe the benefits of using SSR (server side rendering)
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• Q10. How can we fetch our data ? (fetch api, axios, forms, websockets, graphql, trpc, etc)
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• Q11. Name performance techniques. It's a wide topic so prepared to explain in detail
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• Q12. Do you know how to measure web performance? (lighthouse with it's scores measures)
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• Q13. Resolve a Leetcode problem -Merge two intervals.
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• Q1. Difference between defer and async
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• Q2. Pseudo class vs Pseudo element
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Write a function , which accept a sorted array, and count the unique value in array. There can be negative number in array.eg arr[,-2, -1, -1, 0, 1,1 , 2, 3,3 , 4, 5]

• Q1. JS questions on closures, promise APIs
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