import React, {useState} from "react";
const app = () => {
const [item, setItem] = useState(1);
// useState(기본값/삽입값), item은 state값, setItem은 setState랑 동일
const increment = () => setItem(item + 1)
const decrement = () => setItem(item - 1)
return (
<div className="App">
<h1>{item}</h1>
<button onClick ={increment}>Increment</button>
<button onClick ={decrement}>Decrement</button>
</div>
)
}
export default App