Aman Mittal • 3/27/2022

When to use keyExtractor prop in React Native's FlatList

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This technical article details the purpose and usage of the keyExtractor prop in React Native's FlatList. It explains how FlatList uses unique keys to track list items, demonstrates scenarios where keyExtractor is necessary or optional, and shows code examples for handling data with and without standard key properties like 'id' or 'key'.

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#React Native #react hooks #performance
When to use keyExtractor prop in React Native's FlatList

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