Method to determine if state or prop is updated

react-state-props-onupdate.js

  componentDidUpdate(prevProps, prevState) {
    if (this.state !== prevState) {
      // update redux state when Information.js state updates
      this.props.updateNewEventInfo(this.state);
    }

    if (prevProps.eventcreation !== this.props.eventcreation) {
      // redux prop is updated in component prop (slight delay between redux / prop updates)
    }
  }