CARS24 Interview Questions, Process, and Tips

FlatList is more efficient for rendering large lists with better performance compared to ScrollView.

• FlatList is optimized for rendering long lists by only rendering the items that are currently visible on the screen.

• ScrollView renders all of its children at once, which can lead to performance issues with large lists.

• FlatList also provides built-in support for pull-to-refresh, infinite scrolling, and item separators.

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Designing a carousel in React Native involves creating a horizontal scroll view with swipe functionality.

• Use ScrollView component with horizontal prop to create the carousel layout.

• Render multiple items inside the ScrollView to display carousel content.

• Implement swipe gestures to navigate between carousel items.

• Consider using libraries like 'react-native-snap-carousel' for additional features and customization.

An immutable class is a class whose instances cannot be modified after creation.

• Use final keyword for class declaration to prevent inheritance

• Make all fields private and final to prevent modification

• Do not provide setter methods, only getter methods should be used

Implement a Springboot service to intercept HTTP requests.

• Create a Springboot application with necessary dependencies.

• Implement a custom interceptor by extending HandlerInterceptorAdapter.

• Override preHandle and postHandle methods to intercept requests and responses.

• Register the interceptor in the WebMvcConfigurerAdapter configuration class.