How to detect if in range of beacon ionic 3

Hello, I am following a sample code posted by Ionic 3 that implements IBeacons with Ionic 3. What I want to do now is display a message if I come close to the beacon specified. How would I go about that? This is what I see in my console and here is my code.

import { Component } from '@angular/core';
import { NavController } from 'ionic-angular';
import { IBeacon } from '@ionic-native/ibeacon';
  selector: 'page-about',
  templateUrl: 'about.html'

export class AboutPage {
  constructor(public navCtrl: NavController, private ibeacon: IBeacon) {}
    // Request permission to use location on iOS
// create a new delegate and register it with the native layer
let delegate = this.ibeacon.Delegate();

// Subscribe to some of the delegate's event handlers
    data => console.log('didRangeBeaconsInRegion: ', data),
    error => console.error()
    data => console.log('didStartMonitoringForRegion: ', data),
    error => console.error()
    data => {
      console.log('didEnterRegion: ', data);

let beaconRegion = this.ibeacon.BeaconRegion('',''); // left blank because I didn't want to put my information

    () => console.log('Native layer received the request to monitoring'),
    error => console.error('Native layer failed to begin monitoring: ', error)