React Native Questions et reponses d'entretien

Question 16. How does React Native handle platform-specific code?

React Native uses platform-specific file extensions (e.g., .ios.js and .android.js) to include platform-specific code. This allows developers to write code that targets specific platforms.

Question 17. What is the purpose of 'Touchable' components in React Native?

Touchable components like TouchableOpacity and TouchableHighlight provide a way to capture touches or clicks on a component. They are used to make elements interactive.

Example:

 alert('Button pressed!')}>
  Press me

Question 18. Explain the concept of 'Flexbox' in React Native.

Flexbox is a layout model in React Native that allows components to be dynamically arranged in a container, either horizontally or vertically, to accommodate different screen sizes.

Example:

Question 19. How can you integrate third-party libraries in a React Native project?

Third-party libraries in React Native can be integrated using tools like npm or yarn. Developers typically install the library and link it to the project using react-native link.

Example:

npm install react-navigation

# After installation, link the library
react-native link react-navigation

Question 20. What is the purpose of the 'ActivityIndicator' component in React Native?

The 'ActivityIndicator' component is used to show a loading indicator in a React Native app. It visually indicates that something is happening in the background.

Example: