How to use

Alert

in

ionic-angular

login() {
  let loading = this.loadingCtrl.create({
   content: "Please wait..."
  });
  loading.present();
  this.loginService.login(this.username, this.password).subscribe(
   data => {
    // this.statusBar.backgroundColorByHexString("#25312C")
    this.provider.token = data['token'];
    localStorage.setItem('token', this.provider.token);
    this.provider.userData = jwtDecode( data['token']);
    console.log(this.provider.userData)
    this.navCtrl.push(TabsPage);
    loading.dismiss();
   },
   error => {
    console.log(error)
    let alert = this.alertCtrl.create({
     title: "Alert!",
     subTitle: "OOOOPS... Something Went Wrong",
     buttons: ["Dismiss"]
    });
    loading.dismiss();
    alert.present();
   }
  );
 }

 });
 loading.dismiss();
 alert.present();
 this.navCtrl.pop();
},
 });
 loading.dismiss();
 alert.present();
 this.navCtrl.pop();
 console.log(error);

   });
   loading.dismiss();
   alert.present();
   });
   loading.dismiss();
   alert.present();
   console.log(error);
});
loading.dismiss();
alert.present();

       alert2.present();
       this.navCtrl.pop();
       this.navCtrl.pop();
       });
       loading.dismiss();
       alert3.present();
       this.navCtrl.pop();
       console.log(error);
alert.present();

          buttons: ["Dismiss"]
         });
         alert.present();
         loading.dismiss();
        },
          buttons: ["Dismiss"]
         });
         alert.present();
         loading.dismiss();
         console.log(error);
alert.present();

});
loading.dismiss();
alert.present();
});
loading.dismiss();
alert.present();
console.log(error);

    });
    loading.dismiss();
    alert3.present();
       alert2.present();
       this.navCtrl.pop();
      },
       });
       loading.dismiss();
       alert3.present();
       this.navCtrl.pop();
       console.log(error);
alert.present();
console.log("Archive clicked");