Ionic 4 Firebase email auth - Update email

home.page.ts

  updateEmail() {
    user.updateEmail(this.email)
      .then(() => {
        this.email = '';
        this.presentToast('Email updated', false, 'bottom', 1000);
        this.error = '';
      })
      .catch(err => {
        console.log(` failed ${err}`);
        this.error = err.message;
      });
  }