How to use

pop

function

in

NavController

cancel() {
  this.navCtrl.pop();
 }

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

 loading.dismiss();
 alert2.present();
 this.navCtrl.pop();
 this.navCtrl.pop();
},
error => {
 loading.dismiss();
 alert3.present();
 this.navCtrl.pop();
 console.log(error);

 loading.dismiss();
 alert2.present();
 this.navCtrl.pop();
},
error => {
 loading.dismiss();
 alert3.present();
 this.navCtrl.pop();
 console.log(error);

cancel() {
  this.navCtrl.pop();
 }

cancel(){
  this.navCtrl.pop();
 }

signin() {
  this.navCtrl.pop();
 }