text: import React, { Component } from 'react';
  import { connect } from 'react-redux';
  import { selectBook } from '../actions/index';
  import { bindActionCreators } from 'redux';
  
  class BookList extends Component {
    renderList() {
      return this.props.books.map((book) => {
        return (
          <li
            key={book.title}
            onClick={() => this.props.selectBook(book)}
            className='list-group-item'>
            {book.title}
          </li>
        );
      });
    }
  
    render() {
      return (
        <ul className='list-group col-sm-4'>
          {this.renderList()}
        </ul>
      )
    }
  }
  
  function mapStateToProps(state) {
    return {
      books: state.books
    };
  }
  
  function mapDispatchToProps(dispatch) {
    // whenever select book is called, the result should be passed to all reducers
    return bindActionCreators({ selectBook: selectBook }, dispatch);
  }
  
  //promote BookList from a component to a containers
  export default connect(mapStateToProps, mapDispatchToProps)(BookList);
  