ReactApr 17, 2026
Why React Hooks Break?Technical
Why React Hooks Break?
A deep dive into how React tracks hooks internally using an indexed system—and why breaking hook order causes bugs, crashes, and chaos.
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A deep dive into how React tracks hooks internally using an indexed system—and why breaking hook order causes bugs, crashes, and chaos.
React handles state updates internally—why setState is asynchronous, how batching works, and why your state sometimes feels “wrong”.
Why using index as key causes subtle bugs, and how to fix it using stable identities.
React avoids expensive DOM operations using diffing and reconciliation—and why most re-renders are not a performance problem.
What happens after a React component re-renders—covering Virtual DOM, diffing, and the 3-phase update process that makes React fast.
What triggers React to re render your component, and why re-rendering is not the same as updating the DOM.
Why React runs your effects twice in development, what Strict Mode is actually doing behind the scenes, and how it helps you write safer, predictable code.