React and JavaScript normal questions
Senior Frontend Developer Interview Questions
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4th round: System Design - Was asked to do a High Level Design of a web app similar to hello fresh (scheduled 2 weeks after 3rd round)
Basic React and JS questions: map, filter, reduce - difference functional and class components lifecycle methods react hooks that I have worked on profiling
1. React Lifecycle methods 2. Class vs Functional components 3. Is it possible to use life cycle methods in Functional components? 4. What is Higher order components? 5. How do you pass the data between multiple child components? 6. What are the steps to save and update the data in Redux store? 7. React hooks 8. Destructure concept from ES-6 9. Arrow function vs regular functions 10. Closure concept in JavaScript 11. Async/await, Promises 12. Virtual DOM 13. What is box model in CSS 14. HTML5 Semantic elements 15. Session storage vs Local storage 16. JavaScript Array and String Methods
The third challenge was to fill a matrix with each cell representing a cell color, using a bucket fill that will only paint the adjacent cells, calculate the number of fills needed to paint all the matrix.
Can you describe a time when you were proactive in taking your own initiative to solve a problem or improve something?
OOPS, CSS, HTML5, AMGULAR, JAVASCRIPT, SOLID PRINCIPLES, DESIGN PATTERNS.
Expect questions around React Hooks, Array functions, destructiring, scope, Redux, optimisation, etc.
De vraag wat voor racefiets ik heb.
Interview was about Redux and general compose of ReactJS application
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