Javascript 将类组件转换为函数组件

我是一个新的功能组件，这是一个挑战，我有一个类组件，我想从类组件转换到功能组件

const initialState = {
 todo: {
   done: false
 }
}

class UserSummary extends Component {

 constructor(props) {
   super(props);
   this.state = initialState
 }

 async componentDidMount() {
   this.refreshContent();
 }

 refreshContent = async () => {
   const todos = await todoService.index(this.props.user);
   this.props.handleUpdateTodos(todos);
 }

 handleDeleteToDo = async (todo) => {
   await todoService.deleteToDo(todo);
   this.refreshContent();
 }

 handleEditToDo = async (todo, updatedToDo) => {
   await todoService.editToDo(todo, updatedToDo);
   this.refreshContent();
 }