react hooks update parent state from child

1const EnhancedTable = ({ parentCallback }) => {
2    const [count, setCount] = useState(0);
3    
4    return (
5        <button onClick={() => {
6            const newValue = count + 1;
7            setCount(newValue);
8            parentCallback(newValue);
9        }}>
10             Click me {count}
11        </button>
12    )
13};
14
15class PageComponent extends React.Component { 
16    callback = (count) => {
17        // do something with value in parent component, like save to state
18    }
19
20    render() {
21        return (
22            <div className="App">
23                <EnhancedTable parentCallback={this.callback} />         
24                <h2>count 0</h2>
25                (count should be updated from child)
26            </div>
27        )
28    }
29}