text: import React from "react";
  import { CSSTransition, TransitionGroup } from "react-transition-group";
  import ContactListItem from "../ContactListItem/ContactListItemContainer";
  import { connect } from "react-redux";
  import styles from "./ContactList.module.css";
  import PropTypes from "prop-types";
  import ContactItemFade from "./ContactItemFade.module.css";
  import contactsSelectors from "../../redux/contacts/contactsSelectors";
  
  const ContactList = ({ contacts }) => (
    <TransitionGroup component="ul" className={styles.ContactList}>
      {contacts.map(({ id }) => (
        <CSSTransition key={id} timeout={250} classNames={{ ...ContactItemFade }}>
          <ContactListItem key={id} id={id} />
        </CSSTransition>
      ))}
    </TransitionGroup>
  );
  
  const mapStateToProps = (state) => ({
    contacts: contactsSelectors.getVisibleContacts(state),
  });
  
  ContactList.propTypes = {
    contacts: PropTypes.arrayOf(
      PropTypes.exact({
        id: PropTypes.number,
        name: PropTypes.string,
        number: PropTypes.string,
      }).isRequired
    ),
  };
  
  export default connect(mapStateToProps)(ContactList);
  