jku-ba-react/src/User.js

import React from 'react';
import { Button } from "reactstrap";

export default class User extends React.Component{    
    render(){
        return (
          <div>
            {this.props.title + " - " + this.props.app.hello()}
            {": Name = " + this.props.name}
            {", Counter = " + this.props.counter + ", "}
            <Button color="info" onClick={(idx) => this.props.doClick(idx)}>Increment</Button>
          </div>
        )
    }

}