hooks-in-react-native-1.jsx

class MyComponents extends React.Component {
  constructor(props) {
    super(props);

    this.state = {
      test: 42
    };

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

  // you could also do this, so no constructor needed
  state = {
    test: 42,
  }

  renderSomeText() {
    return <text>this.state.test</text>
  }
}