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899 react native interview questions shared by candidates

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]
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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]

Create function to show multiple toast messages on a screen that can be triggered from anywhere in the app, And toast messages should expire after sometime and there is limit number toast messages can appear at a time
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Senior React Native Developer

Interviewed at Zepto (India)

3.2★
Nov 15, 2024

Create function to show multiple toast messages on a screen that can be triggered from anywhere in the app, And toast messages should expire after sometime and there is limit number toast messages can appear at a time

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?
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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?

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