changePassword() {

 if(this.passwordchangeForm.valid) {

  this.auth.changePasswort(this.passwordnew.value, this.password.value).then(data=>{
      let toast = this.toastCtrl.create({
        message: "Passwort erfolgreich geändert",

      })
      toast.present();

  }).catch(error=>{
    let alert = this.alertCtrl.create({
      title: 'Fehler beim ändern des Passworts',
      message: error,
      buttons: ['OK']
    })
    alert.present();

  })
 }
}

changePasswort(passNew, password){
var currUser = this.firebase.auth().currentUser;
    return new Promise((resolve, reject) =>{
        this.loginWithEmail({email: currUser.email, password: password}).subscribe(data =>{
            currUser.updatePassword(passNew).then(result =>{
                resolve("Passwort Updated")
            }).catch(error =>{
                 reject(error)
            })
        }, error=>{
            reject(error);
        })
  })
}