give an array **[]** and target, return the count where the elements are matching to the target Input: arr[] = [2, -1, 1, 5, 7], target = 6 // // Output: 2 and then asked about optimizing the code and then 45 mins resume centric questions.
React Developer Interview Questions
3,476 react developer interview questions shared by candidates
Suppose you are designing an e-commerce system. There are millions of users, millions of orders, and a very high read/write frequency. How would you design the database schema to ensure: Fast lookups of orders by user, Scalability across multiple servers, Data consistency when multiple users are placing orders at the same time, And also ensure no user can see another user’s data? Explain whether you would use SQL or NoSQL, justify your choice, and discuss indexing strategies, sharding, and transaction isolation levels."
Q: How do React components know when to update? Q: How does React work? Q: How can you prevent prop drilling? Q: Tell us about yourself.
Difference between a interface and an abstract class. Concepts, hoisting, hooks, splice operator, etc.
i was given a task using react redux to simulate a html coded website which the intervierwer provided. its not very hard the main thing is to evaluate whether are you famillar with react redux middleware usage.
Make React Native Demo, phone call with project manager very non-technical.
Temas sobre javascript y React
they asked about class based and functional component
Can you write a React map() function to render a list of elements?
Coding Round:- They asked to print from 1 to 10 without using any loop.
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