
Why setState Doesn't Update Immediately (React Batching)
I thought React was broken because console.log(state) showed old values. Here is why React batches updates and acts asynchronously.

I thought React was broken because console.log(state) showed old values. Here is why React batches updates and acts asynchronously.
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At first, I cursed React: "Why can't you just update a variable properly?" But behind that inconvenience was a deep engineering decision: "How do we paint the web faster and more efficiently?"
setState is async (Mailbox).useEffect to verify (Delivery Confirmation).Once I understood this, React stopped being an enemy and became a reliable partner. If a non-CS major like me can get it, so can you.