REACT — useEffect

Overview

Learn useEffect in REACT with a clear explanation and a practical example.

What you'll learn

• What useEffect means
• When to use it
• How it works in practice
• A copy‑paste example

Syntax

useState / useEffect

Example

import { useState } from "react";

export default function Counter(){
  const [n,setN] = useState(0);
  return <button onClick={()=>setN(n+1)}>Count: {n}</button>;
}

Notes

• Test the example in the Playground.
• Start simple, then expand.

Mistakes

• Mixing up the syntax.
• Not testing the output.