How do I use keys in lists in React?
An example of an AI chatbot conversation about using keys in React lists.
How do I use keys in lists in React?
In React, keys help identify which items have changed, are added, or are removed. They should be unique among siblings.
Why are keys important in React?
Keys are crucial for performance optimization and to maintain component state during re-renders.
Can I use the index of the array as a key?
It's not recommended to use array indices as keys if the list can change, as it can lead to issues with component state.
What should I use as a key instead?
Use a unique identifier from your data, like an ID, to ensure stable keys across renders.
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