React Developer Interview Questions

3,046 react developer interview questions shared by candidates

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.
avatar

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]}
avatar

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]}

Viewing 1971 - 1980 interview questions

See Interview Questions for Similar Jobs

Glassdoor has 3,046 interview questions and reports from React developer interviews. Prepare for your interview. Get hired. Love your job.