Extract user data to component map method

app.jsx

class App extends React.Component {
  
  //....
  
  render() {
    return (
      <div>
        <h1>Users</h1>
        <ul>
        {this.state.users.map(this.userDataToComponent)}
        </ul>
      </div>
    );
  }
  
  userDataToComponent = user => {
    return (
      <UserListItem
        key={user.id}
        user={user} 
        onClick={this.deleteUser} 
      />
    );
  }
}