DanilTezin

import React, { useState } from 'react';
import Hi from './Hi'

function display(){
    return <Hi/>
}

export const Main = () => {
    const [isHiVisible, setHiVisible] = useState(false);
    const onClick = () => {
        setHiVisible((prev) => !prev);
    }
    return (
        <div>
            <button onClick={onClick}>отобразить</button>
            {isHiVisible &&
                <Hi/>
            }
        </div>
    );
};