React Native React Native 3

Question 1

In a React Native FlatList, what prop would you use to render a separator between items?

Accepted Answer

ItemSeparatorComponent

Answer

ItemSeparatorComponent accepts a component to render between each pair of items in the FlatList.

Question 2

Which React Native API lets you copy text to the system clipboard?

Accepted Answer

Clipboard.setString() from @react-native-clipboard/clipboard

Answer

The @react-native-clipboard/clipboard package exposes Clipboard.setString() to write text to the device clipboard.

Question 3

What is the role of `react-native.config.js` in a React Native project?

Accepted Answer

Declares native dependencies for autolinking and CLI options

Answer

react-native.config.js is used by the React Native CLI for autolinking native modules and setting project-level CLI configuration.

Question 4

How do you prevent a TextInput from auto-capitalizing the first letter of every sentence in React Native?

Accepted Answer

autoCapitalize='none'

Answer

Setting autoCapitalize='none' disables automatic capitalization on a TextInput component.

Question 5

Which Animated method combines multiple animation values into a single tracked value?

Accepted Answer

Animated.add

Answer

Animated.add creates a new Animated.Value that tracks the sum of two animated values, enabling derived animations.

React Native Practice Test