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React Developer Interview Questions

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In the frontend interview, the security-focused case questions failed to clearly define the expected level or context of the approach (implementation, architectural, or theoretical), which resulted in an unclear and inconsistent evaluation.
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React Developer

Interviewed at Mphasis

3.4★
Dec 22, 2025

In the frontend interview, the security-focused case questions failed to clearly define the expected level or context of the approach (implementation, architectural, or theoretical), which resulted in an unclear and inconsistent evaluation.

Q: Given user input and database as array. Return the elements which needs to be updated or removed from the database array. For example: userInput=[1,2,3] database=[2,3] Program should return { insertOrUpdate: [1,2,3], remove: [2,3]}
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Senior Software Engineer (React)

Interviewed at Delivery Hero

3.5★
Jan 19, 2021

Q: Given user input and database as array. Return the elements which needs to be updated or removed from the database array. For example: userInput=[1,2,3] database=[2,3] Program should return { insertOrUpdate: [1,2,3], remove: [2,3]}

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