import './App.css';
// import LearnUseState from './components/LearnUseState';
// import LearnUseEffect from './components/LearnUseEffect';
// import LearnUseRef from './components/LearnUseRef';
// import LearnUseMemo from './components/LearnUseMemo';
// import LearnUseCallback from './components/LearnUseCallback';
import CustomHook from './components/CustomHook';

function App() {
  return (
    <div className="App">
      <header className="App-header">
        {/* <LearnUseState />
        <LearnUseEffect />
        <LearnUseRef />
        <LearnUseMemo />
        <LearnUseCallback />
         */}
        <CustomHook />
      </header>
    </div>
  );
}

export default App;