React-patternfly-3 DatePicker - how to receive its value?

Development PatternFly-React
#1

Is there a demo of using pf3 ? I can’t manage to find how to update the state using this control. I tried to replace the handleChange function below with a dummy e=>console.log(e), but without luck so far.

        <FormGroup 
            controlId="expirationDate"
            onChange={this.handleChange}
            >
                <DatePicker
                  id="popover-date-picker"
                  locale="en-US"
                  placement="top" 
                  value={new Date(this.state.expirationDate)}
                  weekStartsOn={0}
                />
          </FormGroup>
#2

Hey @tomer: are you familiar with the surge site displaying these components? https://patternfly-react.surge.sh/patternfly-3/?path=/story/patternfly-react-forms-and-controls-date-time-picker--datepicker