Interview Questions On React Native For Fresher
React Native Interview Questions for Freshers
Interview Questions On React Native For Fresher
Interview questions on React Native for freshers aim to assess their understanding of the framework's core concepts and its application in building mobile applications. These questions are crucial as React Native has become a widely adopted platform for cross-platform mobile development, offering significant career opportunities. By demonstrating proficiency in its essential features, such as state management, component lifecycle, and asynchronous operations, freshers can showcase their potential to contribute to React Native development teams.
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1 - What is React Native?
A framework for building native iOS and Android apps using JavaScript.
2) Explain the architecture of React Native.
Bridge between JavaScript and native code, with a JavaScript thread and a UI thread.
3) What is JSX?
JavaScript XML, used to define UI elements in React Native.
4) Define props and state in React Native.
Props are immutable values passed into a component from its parent, while state is mutable and can be updated internally.
5) What is the difference between a component and an element in React Native?
A component is a class or function that defines the behavior and appearance of a UI element, while an element is an instance of a component.
6) What are some popular React Native navigation libraries?
React Navigation, NativeStack, TabNavigator.
7) How do you handle data fetching in React Native?
Using libraries like axios, fetch, or React Query.
8) What is the difference between a virtual DOM and a real DOM?
A virtual DOM is a representation of the real DOM in memory, allowing for efficient updates without redrawing the entire UI.
9) What are some performance optimization techniques for React Native apps?
Use the latest React Native version, optimize images, avoid unnecessary re renders, and use a profiler to identify bottlenecks.
10) How do you create custom native modules in React Native?
By writing native code and exposing it to JavaScript using the React Native bridge.
11 - What is asynchronous programming in React Native?
The use of callbacks, promises, or async/await to handle events that occur asynchronously, such as API calls or animations.
12) How do you handle animations in React Native?
Using the Animated API to create and control animations.
13) What are flexbox and grid layout in React Native?
Flexbox and grid layout are used to arrange and align UI elements on the screen.
14) How do you style components in React Native?
Using stylesheets written in JavaScript or CSS like syntax.
15) What are some common debugging tools for React Native?
React Developer Tools, Chrome DevTools, Reactotron, and Flipper.
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- Course Overview
- This course provides a comprehensive overview of React Native interview questions for freshers, covering fundamentals like basic concepts, component lifecycle, state management with Hooks, navigation, and debugging techniques. By studying these questions, you will gain a strong foundation in React Native concepts and prepare effectively for interviews, enhancing your chances of securing your dream role.
- Course Description
- This comprehensive course equips freshers with the essential knowledge and skills to ace React Native interviews. It covers fundamental concepts, design patterns, performance optimization techniques, and common interview questions. Participants will gain a deep understanding of React Native's architecture and core components, enabling them to effectively demonstrate their proficiency and confidence in this in-demand technology.
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Functional Tools
1 - React Native: An open source framework for building cross platform mobile applications using JavaScript and React. It allows developers to write code once and deploy it to both iOS and Android platforms.
2) JavaScript: A high level, interpreted programming language that is used for developing web applications, mobile apps, and server side applications. It is a versatile language that is known for its speed, efficiency, and simplicity.
3) Node.js: A JavaScript runtime environment that allows developers to run JavaScript code on the server side. It is used for building scalable and efficient web applications, APIs, and microservices.
4) Redux: A state management library for React applications that provides a centralized store for managing application state. It allows developers to easily track and update state, and it makes it easier to debug and maintain applications.
5) Expo: A cross platform development toolchain for React Native that simplifies the development process. It provides a set of pre built modules, libraries, and tools that can be used to build and deploy React Native applications.
6) Firebase: A cloud based platform for developing and hosting mobile and web applications. It provides a variety of services, including authentication, database storage, hosting, and analytics.
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- Participate in special events and contests.* Brainly often hosts special events and contests that offer bonus points for answering questions or completing certain tasks.
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Interview Questions With Answer On React Native For Fresher
