xxxx

index.jsx

<Widget widgetId="threats" />

// ES7 class properties
class Widget extends React.Component {
	state = this.getInitialState(); // ?

	getInitialState() {
		return {
			widgetId: this.props.widgetId
		};
	}
}

// ES6 class constructor
class Widget extends React.Component {
	constructor() {
		super();
		this.state = this.getInitialState(); // ?
	}
	getInitialState() {
		return {
			widgetId: this.props.widgetId
		};
	}
}