React useEffect Hook Tutorial in Tamil | Lifecycle in React | Session 3

React Session 3 – useEffect Hook explained in Tamil!
In this video, we explore why useEffect is used, how it replaces lifecycle methods,
and how to run effects on mount, update, and cleanup with real-world examples.

📌 Topics Covered:
• What is useEffect?
• useEffect dependency array
• When useEffect runs?
• Component mount & unmount
• API calling with useEffect
• Parent → Child updates

This is part of the ultimate React tutorial series in Tamil.

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