React Native FlatList vs SectionList

What are the main differences between FlatList and SectionList in React Native?

FlatList is used for rendering a simple list of items, while SectionList is designed for rendering sections of items, allowing for grouped data.

When should I use SectionList instead of FlatList?

Use SectionList when you need to display data in sections, like a grouped list of contacts or categories. FlatList is better for a single list.

Are there performance differences between the two?

Yes, FlatList is generally more performant for simple lists, while SectionList can be less efficient due to its additional complexity.

Can I use FlatList for a sectioned layout?

You can, but it requires additional workarounds. SectionList is specifically optimized for that purpose.

What are some best practices for using FlatList?

Some best practices include using keyExtractor for unique keys, optimizing renderItem, and using getItemLayout for fixed item heights.