React Developer Interview Questions

3,484 react developer interview questions shared by candidates

first round : async await, promises syntax, call apply bind, closure, rest vs spread, asynchronous operation, react hooks. etc second round : main vs branch, push vs commit, agile methodology, exact keyword?, router vs routes, unit testing, thunk vs async await etc
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React Js Developer

Interviewed at HCLTech

3.5
Jan 7, 2025

first round : async await, promises syntax, call apply bind, closure, rest vs spread, asynchronous operation, react hooks. etc second round : main vs branch, push vs commit, agile methodology, exact keyword?, router vs routes, unit testing, thunk vs async await etc

The interview process was good. The interviewer was professional and asked me to show a 360° view of my surroundings during the interview. They asked questions about: Native mobile development Biometrics React Hooks (useMemo, useCallback) Performance debugging in React Native I was also given a sample e-commerce implementation task and asked to implement the UI in a React Native sandbox environment.
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React Native Developer

Interviewed at Publicis Sapient

3.4
Oct 30, 2025

The interview process was good. The interviewer was professional and asked me to show a 360° view of my surroundings during the interview. They asked questions about: Native mobile development Biometrics React Hooks (useMemo, useCallback) Performance debugging in React Native I was also given a sample e-commerce implementation task and asked to implement the UI in a React Native sandbox environment.

A little prankster took their friend's pet chicken and put it on top of the barn shed. They tied a rope to the bird's leg so that it could not'escape. However, they were worried that any egg laid might fall off, as the barn had slanting roofs on either side. To their relief, not a single egg fell off the top of the barn before their parents discovered their mischief. Is the above description consistent?
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React Frontend Software Engineer

Interviewed at Capital.Com

4.3
Jan 14, 2025

A little prankster took their friend's pet chicken and put it on top of the barn shed. They tied a rope to the bird's leg so that it could not'escape. However, they were worried that any egg laid might fall off, as the barn had slanting roofs on either side. To their relief, not a single egg fell off the top of the barn before their parents discovered their mischief. Is the above description consistent?

1. Create a user form that takes in name, phone no, and few others and display in a table format in ascending order 2. string with letters and some repeat letters was given we need to rearrange in ascending order based on number of times the letter appeared (i don't rember the exact question) 3.Using use ref needed to verify some value in reacr form
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React Developer

Interviewed at CapeStart

4.5
Jan 16, 2025

1. Create a user form that takes in name, phone no, and few others and display in a table format in ascending order 2. string with letters and some repeat letters was given we need to rearrange in ascending order based on number of times the letter appeared (i don't rember the exact question) 3.Using use ref needed to verify some value in reacr form

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