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React Native 面试题与答案

Test your skills through the online practice test: React Native Quiz Online Practice Test

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问题 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.

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问题 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

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问题 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:

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问题 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

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问题 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:

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