Discover common React mistakes that developers make when using hooks, managing state, and rendering components. Learn how to identify and fix these mistakes to improve your application's performance and maintainability.
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Good article. However you have broken the rule 'Incorrectly relying on the current state value for calculating the next state' inside 'Working with simple arrays'.
You shouldn't have
setItems([...items, item]);
but instead
setItems((items) => [...items, item]);
In that specific case it's actually not necessary to use the updater function since React will correctly handle the update.