react-google-charts-selection-example.js

import React from 'react'
import {render} from 'react-dom'
import {Chart} from 'react-google-charts'

class App extends React.Component{
  constructor(props) {
    super(props);
  }
  onSelectEvent(Chart) {
    console.log(Chart.chart.getSelection());
  }
  componentWillMount() {
    this.chartEvents = [
      {
        eventName : 'select',
        callback  : (Chart) => { 
          this.onSelectEvent(Chart)
        }
      }
    ];
  }
  render() {
    return (
      <div className={"my-pretty-chart-container"}>
        <Chart chartType = "ScatterChart" data = {[     ['Age', 'Weight'], [ 8,      12], [ 4,      5.5]]} options = {{}} graph_id = "ScatterChart"  width={"100%"} height={"400px"}   chartEvents={this.chartEvents}/>
      </div>
    )
  }
}

render(<App/>, document.querySelector('#app'));

DOES NOT WORK Chart.chart is undefined