react-1.js

const Card = (props) => {
	return (
  	<div style={{margin: '1em'}}>
    	<img width="75" src={props.avatar_url} />
      <div style={{display: 'inline-block', marginLeft: 10}}>
      	<div style={{fontSize: '1.25em', fontWeight: 'bold'}}>
        	{props.name}
        </div>
        <div>{props.company}</div>
      </div>
    </div>
  );
};

const CardList = (props) => {
	return (
  	<div>
    	{props.cards.map(card => <Card key={card.id}{...card} />)}
    </div>
  );
}

class Form extends React.Component {
 state = { userName: '' }
 handleSubmit = (event) => {
 	event.preventDefault();
  
  axios.get(`https://api.github.com/users/${this.state.userName}`)
  	.then(resp => {
    	this.props.onSubmit(resp.data);
      this.setState({ userName: '' });
    });
 };
 
 render() {
  	return (
    	<form onSubmit={this.handleSubmit}>
    	  <input type="text" 
        	value={this.state.userName}
          onChange={(event) => this.setState({ userName: event.target.value })}
        	placeholder="Github username" required />
        <button type="submit">Add Card</button>
    	</form>
    );
  }
}

class App extends React.Component {
	state = {
    cards: [
     
    ]
  };
  
  addNewCard = (cardInfo) => {
  	this.setState(prevState => ({
    	cards: prevState.cards.concat(cardInfo)
    }))    
  };
  

	render() {
  	return (
    	<div>
      	<Form onSubmit={this.addNewCard}/>
        <CardList cards={this.state.cards} />
      </div>
    );
  }
}


ReactDOM.render(<App />, mountNode);