home.ts

import { TwitterConnect } from '@ionic-native/twitter-connect';
...

export class HomePage {

  constructor(public navCtrl: NavController, public twitterConnect: TwitterConnect) { }

  login() {
    this.twitterConnect.login().then(this.onSuccess, this.onError);
  }
  
  onSuccess(response) {
    console.log('response', response);
    console.log(response.userName);
    console.log(response.userId);
    console.log(response.secret);
    console.log(response.token);
  }
  
  onError(error) {
    console.log('error', error);
  }
}