Top React Native Interview Questions for Job Seekers
React Native is one of the most popular mobile application frameworks developed by Facebook and is based on JavaScript. This framework is growing so fast in the market that it is used by more than 8000 companies and these companies include names like Facebook, Instagram, Airbnb, etc. To be a part of these companies could be a dream for anyone and to achieve this dream you have to be a React developer. Collectively, we have prepared a list of React Native Interview Questions and Answers, by going through these interview questions you could get what you are thinking of. 70% of companies consider React Native to build applications as it is faster in development and deployment time.
Top 10 React Native Interview Questions for 2023
- What is the purpose of a Native module in React Native, and how do you create one?
- How does React Native handle layout and styling compared to CSS?
- How do you debug a React Native application?
- What is the difference between AsyncStorage and LocalStorage in React Native?
- How do you handle navigation between screens in a React Native application?
- Can you explain the concept of React Native bridge and how it works?
- What is the purpose of React Native's "Flexbox" layout, and how does it work?
- How do you handle errors in a React Native application, and what are some best practices?
- Can you explain the "Props drilling" concept in React Native and how you avoid it?
- How do you handle user authentication and authorization in a React Native application?
- Can you explain the concept of Redux-saga and how it works with Redux in React Native?
- How do you test a React Native application, and what are some best practices?
| Quick Facts About React Native | |
|---|---|
| When did React Native Initial release? | 26th March 2015 |
| What is the latest version of React Native? | React Native 0.70 was released on Sep 5, 2022 |
| React Native is Created By | |
| What language does React Native use? | It is based on React js, which is written in JavaScript. |
React Native Technical Interview Questions and Answers
Dispatch is a feature of the Redux store. You call store.dispatch to dispatch an action. This is the only way to set off a kingdom change. With React Redux, your factors never get admission to the keep without delay - connect does it for you.
Virtual DOM is a copy of the real DOM. This node tree lists the elements, their attributions, contents, and properties also. Whenever any underlying data changes in React Native, the entire UI will be re-rendered in Virtual DOM representation. Then, the difference between previous DOM representation and virtual DOM will be counted. After that, the real DOM will be updated.
You can install react navigation by the following command:
yarn add react-navigation
or npm install react-navigation
You have to install following modules in addition to react-navigation:
- react-native-gesture-handler
- react-native-reanimated
- react-native-screens
- react-native-safe-area-context
- react-navigation-stack
const AppNavigator = createStackNavigator({
Home: {
screen: HomeScreen,
},
});
In the end, we know an interview that has a Javascript word in it, is not very easy to crack. By going through various questions published on different websites wouldn’t open the door for you. Here are some bonus tips for you which you should also keep in mind-
- Pick a programming language and make a good command of it.
- Don’t mix concepts of ReactJS with React Native.
- Practice regularly some coding challenges and mock interviews.
- You should know different methods to solve a problem.
- Take time to think before answering, don’t hurry.