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React Js Developer Interview Questions

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475 react js developer interview questions shared by candidates

Since I was a fresher and don't know anything about React it was an average level of difficult interview for me. 1. Basic of React. 2. Diff between Class and Function. 3. Props Accessing and state mutation. 4. React Life Cycle and hooks. 5. Simple Coding round in React.
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React Js Developer

Interviewed at Craftveda Technology

4★
Oct 22, 2021

Since I was a fresher and don't know anything about React it was an average level of difficult interview for me. 1. Basic of React. 2. Diff between Class and Function. 3. Props Accessing and state mutation. 4. React Life Cycle and hooks. 5. Simple Coding round in React.

1st round: Simple questions on react - why and what of react. Virtual dom . simple array and object manipulation in javascript. Lifecycle of react. 2nd round: Some concepts in react and react hooks(about use context, use ref, use callback, usestate, usereducer) redux, redux thunk, Form validation in react. Difference between Props and state. the version of react which you used. What and why of closure. Why do we need typescript ?. Be genuine of what you know and what you dont know. My interviewer asked questions based on what i said i know
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Front End Developer (React JS)

Interviewed at MapleLabs

4★
Nov 26, 2021

1st round: Simple questions on react - why and what of react. Virtual dom . simple array and object manipulation in javascript. Lifecycle of react. 2nd round: Some concepts in react and react hooks(about use context, use ref, use callback, usestate, usereducer) redux, redux thunk, Form validation in react. Difference between Props and state. the version of react which you used. What and why of closure. Why do we need typescript ?. Be genuine of what you know and what you dont know. My interviewer asked questions based on what i said i know

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