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Article · React
Do we need index as key in React?
Understand React's key prop and when to use it effectively! This article explains why using the index as a key can lead to unexpected re-renders and potential bugs in dynamic lists. Learn best practices for assigning keys, including using unique and stable IDs whenever possible. Discover when it's acceptable to use the index and see a practical example of managing keys in a dynamic todo list component to optimize performance and avoid common pitfalls.
