function UserList() {
const [users, setUsers] = useState([])
fetch('/api/users')
.then(res => res.json())
.then(setUsers)
return <div>{users.length}人</div>
}function UserList() {
const [users, setUsers] = useState([])
fetch('/api/users')
.then(res => res.json())
.then(setUsers)
return <div>{users.length}人</div>
}
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