Reactjs. Cannot pass variable to class

I m totally new to React. I am trying to pass a variable 'name' to my class, but it is not getting assigned. These names comes from another file. I cannot see names of people on my buttons. Before my Card was just a simple function and it was working fine. But after converting it into a class, name is not working. Pls help!

class Card extends Component { 
constructor({props, name}) {
super(props, name)
this.state = { 
    isToggleOn: true,
    name: this.name
};


this.handleClick = this.handleClick.bind(this);
 }

handleClick() {
    this.setState(prevState => ({
        isToggleOn: !prevState.isToggleOn
    }));
} 
render() {

var { name } = this.state;
return (
  <button onClick={this.handleClick}>
    {this.state.isToggleOn ? name : 'OFF'}
  </button>
);  
}
} 
ReactDOM.render(
  <Card />,
  document.getElementById('root')
);
export default Card;