6 State Mistakes Every Junior React Developer Makes

React useState tutorial beginner to advanced. React useState best practices and solutions to the most common state problems. Functional update, white screen problem, derived states, and more.

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00:00 useState Functional Update (Why useState doesn't update immediately?)
02:54 React useState white screen problem fixed
05:56 React useState How to update a specific object property?
09:27 React How to change all inputs with a single onChange?
11:17 useState vs useReducer (When to use?)
12:53 Be careful about React derived states!