React Native Basics

What is React Native?

• React Native is a programming language for web development.

• React Native is a type of natural medicine for allergies.

• React Native is a brand of organic food products.

• React Native is a framework for building native mobile apps using JavaScript and React.

Explain the difference between React and React Native.

• React is for web development, while React Native is for mobile app development.

• React is only for iOS development, while React Native is only for Android development.

• React and React Native are the same thing.

• React is for mobile app development, while React Native is for web development.

What are the advantages of using React Native for mobile app development?

• Poor code reusability

• Slower development process

• Non-native performance and user experience

• The advantages of using React Native for mobile app development include code reusability, faster development, efficient development process, and native-like performance and user experience.

What are the basic building blocks of a React Native app?

• Components

• HTML elements

• Java classes

• Swift functions

What is the purpose of state in React Native?

• To control the layout and styling of components

• To store and manage component-specific data and allow components to update and re-render based on changes to the state.

• To handle user authentication and authorization

• To manage server-side data and API calls

How do you create a component in React Native?

• Create a new JavaScript file, define the component using 'class' or 'function' syntax, and export the component for use in other parts of the application.

• Define the component directly within the main App.js file

• Use a pre-built component from a different library without creating a new file

• Create a new HTML file and define the component using 'div' or 'span' syntax

Explain the concept of props in React Native.

• Props in React Native are used to pass data from a parent component to a child component.

• Props in React Native are used to style components

• Props in React Native are only used in functional components

• Props in React Native are used to pass data from a child component to a parent component

What are the different types of components in React Native?

• Basic Components and Advanced Components

• Primary Components and Secondary Components

• Stateful Components and Stateless Components

• Class Components and Functional Components

How do you handle user input in React Native?

• Use the 'onSubmit' prop for TextInput component to capture user input

• Use the 'onClick' event for TextInput component to capture user input

• Use the 'onInput' event for TextInput component to capture user input

• Use the 'onChangeText' prop for TextInput component to capture user input and update the state.

What are some best practices for optimizing performance in React Native?

• Ignore using native modules and Hermes as the JavaScript engine

• Do not utilize FlatList or SectionList

• Use PureComponent and shouldComponentUpdate, utilize FlatList or SectionList, use native modules, and consider using Hermes as the JavaScript engine.

• Avoid using PureComponent and shouldComponentUpdate