BUSINESSNEXT React Js Frontend Developer Interview Questions and Answers

Q1. JavaScript deep concept, React coding , LifeCycle
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Q1. Angular life cycle hook
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Q2. Explain Rxjs, observable, subject
Ans. 
Rxjs is a library for reactive programming using observables and subjects.
• Observables are streams of data that can be subscribed to.

• Subjects are both an observable and an observer, allowing for multicasting.

• Rxjs provides operators for manipulating and transforming data streams.

• Reactive programming allows for asynchronous and event-driven programming.

• Example: An observable can be created from an HTTP request and subscri
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Count sum of digits using recursion.
basic linux commands like vim and cat.

Q1. Salary expecatations.
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Q2. Why are you looking for a job change.
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CBT-based assessments in aptitude and pseudocode for the MCA program.

Q1. React development basic questions
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Q2. Basic html, css, js
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Q3. Basic JSX and introduction of react
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Q4. Basic state management like useState, useeffect, usecontext
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Q5. Redux for global state management
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Q1. Small Javascript coding questions
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Q2. Basic html and css questions
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Q3. Questions about last companies project
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Q1. JS coding questions, output based questions
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Q2. 2 html questions
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Q1. Hr asked about total experience
Ans. 2 years of experience in react native developer
Answered by Akleem Ahmad
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Q2. Hr asked about current CTC and expectations and availablity for joining technical round
Ans. Telling her my expectation and current CTC and time for join the interview
Answered by Akleem Ahmad
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Q1. What is state ,props, redux, asyncstorage,how to upload a build on test flight
Ans. 
State, props, Redux, AsyncStorage are key concepts in React Native. Uploading a build on TestFlight involves creating an IPA file and using Xcode.
• State is used to manage data within a component and can be updated using setState.

• Props are read-only data passed from parent to child components.

• Redux is a state management library for managing application state.

• AsyncStorage is a simple, unencrypted, asynchronous, persistent...read more
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Q2. He assisted my same task on js like what is output of following questions and ask difference between map, forEach, for loop etc
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Q1. Javascript, react and react native multiple questions
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Q2. Javascript coding practice. Context api,
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Q1. React Native Architecture
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Q2. Context vs redux
Ans. 
Context is a built-in feature in React for managing global state, while Redux is a separate library for managing state in React applications.
• Context is simpler to set up and use compared to Redux.

• Redux is more powerful and scalable for larger applications with complex state management needs.

• Context is recommended for simpler state management needs, while Redux is recommended for more complex state management.

• Redux has ...read more
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Q3. Scenario based multiple questions
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Q1. Salary Discussion
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Q2. Personal details
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20 Questions in CBT test you have to score minimum 60% than you passed

For React devloper they ask advanced java script and react advance logical coding

Q1. They say About here company policy and benefits
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