Skip to contentSkip to footer

React Native Developer Interview Questions

Salaries
Interviews

761 react native developer interview questions shared by candidates

Sort the following in ascending order of libraryID: var library = [ { title: 'The Road Ahead', author: 'Bill Gates', libraryID: 1254 }, { title: 'Walter Isaacson', author: 'Steve Jobs', libraryID: 4264 }, { title: 'Mockingjay: The Final Book of The Hunger Games', author: 'Suzanne Collins', libraryID: 3245 }]; =========== 2nd Round Interview Questions are as follows: (Q1) Print the following pattern using the JavaScript.: ********* ******* ***** *** * *** ***** ******* ********* (Q2) What will be the output of the following: var a = 4; function infobellit() { b = 'hello'; console.log(b); var b; } infobellit(); console.log(b); (Q3) Using any online React.JS compiler, make an API call (https://reactnative.dev/movies.json) and print the movie list. (Q4) What is hoisting in JavaScript?
avatar

React Native Developer

Interviewed at Infobell IT Solutions

3.7★
Sep 29, 2023

Sort the following in ascending order of libraryID: var library = [ { title: 'The Road Ahead', author: 'Bill Gates', libraryID: 1254 }, { title: 'Walter Isaacson', author: 'Steve Jobs', libraryID: 4264 }, { title: 'Mockingjay: The Final Book of The Hunger Games', author: 'Suzanne Collins', libraryID: 3245 }]; =========== 2nd Round Interview Questions are as follows: (Q1) Print the following pattern using the JavaScript.: ********* ******* ***** *** * *** ***** ******* ********* (Q2) What will be the output of the following: var a = 4; function infobellit() { b = 'hello'; console.log(b); var b; } infobellit(); console.log(b); (Q3) Using any online React.JS compiler, make an API call (https://reactnative.dev/movies.json) and print the movie list. (Q4) What is hoisting in JavaScript?

Create a functional component which renders a screen ui based on the props it has assigned to. There was all kinds of conditions and format type which needed to be checked in order to render the component proper way.
avatar

React Native Developer

Interviewed at 5D Solutions India

4.5★
Aug 10, 2020

Create a functional component which renders a screen ui based on the props it has assigned to. There was all kinds of conditions and format type which needed to be checked in order to render the component proper way.

Suppose you are designing an e-commerce system. There are millions of users, millions of orders, and a very high read/write frequency. How would you design the database schema to ensure: Fast lookups of orders by user, Scalability across multiple servers, Data consistency when multiple users are placing orders at the same time, And also ensure no user can see another user’s data? Explain whether you would use SQL or NoSQL, justify your choice, and discuss indexing strategies, sharding, and transaction isolation levels."
avatar

React Native Developer

Interviewed at Code District

4.3★
Sep 15, 2025

Suppose you are designing an e-commerce system. There are millions of users, millions of orders, and a very high read/write frequency. How would you design the database schema to ensure: Fast lookups of orders by user, Scalability across multiple servers, Data consistency when multiple users are placing orders at the same time, And also ensure no user can see another user’s data? Explain whether you would use SQL or NoSQL, justify your choice, and discuss indexing strategies, sharding, and transaction isolation levels."

Basic questions included: introduction, overall experience, and project count. Technical/ Theoretical Questions included: •Fundamentals of React Native concepts. •What is a Virtual DOM? •What does HOC (Higher Order Component) stand for, and how is it used? •Differentiate between state and prop. •Explain the process of updating the state in functional components. •When and why is SafeAreaView used? •Discuss storage mechanisms in React Native. •What is the role of Fiber in React Native? •Elaborate on the Interaction Manager's function. Coding question based on Array: •Write a JavaScript program for the intersections of an Array:- Inputs: A = [3, 4, 5, 6, 4, 5]; B = [3, 5, 4, 6, 9, 11, 12]; Output: C = [3, 4, 5, 6]
avatar

React Native Developer

Interviewed at SquareBoat

4★
Sep 21, 2023

Basic questions included: introduction, overall experience, and project count. Technical/ Theoretical Questions included: •Fundamentals of React Native concepts. •What is a Virtual DOM? •What does HOC (Higher Order Component) stand for, and how is it used? •Differentiate between state and prop. •Explain the process of updating the state in functional components. •When and why is SafeAreaView used? •Discuss storage mechanisms in React Native. •What is the role of Fiber in React Native? •Elaborate on the Interaction Manager's function. Coding question based on Array: •Write a JavaScript program for the intersections of an Array:- Inputs: A = [3, 4, 5, 6, 4, 5]; B = [3, 5, 4, 6, 9, 11, 12]; Output: C = [3, 4, 5, 6]

Viewing 61 - 70 interview questions

Glassdoor has 761 interview questions and reports from React native developer interviews. Prepare for your interview. Get hired. Love your job.