text: import React, {Component} from 'react';
  
  class SearchBar extends Component {
      constructor(props){
          super(props);
          this.state = {term: ""};
      }
      render() { // every class component requires a render method
          return (
              <div className="search-bar">
              <input 
                  value = {this.state.term}
                  onChange={event => this.onInputChange(event.target.value)} />
              </div>
          );
      }
  
      onInputChange(term) {
          this.setState({term});
          this.props.onSearchTermChange(term);
      }
  }
  
  export default SearchBar; // any file which imports this file imports SearchBar component