app.jsx

class App extends React.Component {
  constructor() {
    super()
    this.prototypeProperty = {
      baz: "qux"
    }
  }
  static staticProperty = {
    foo: "bar"
  };
  
  render() {
    return (<div>My App</div>)
  }
}

const proto = new App();
const proto2 = proto.prototypeProperty // => { baz: "qux" }

const stat = App.staticProperty // => { foo: "bar" }