Ionic 4 Firebase email auth

signup.page.ts

  signup() {
    this.fireauth.auth.createUserWithEmailAndPassword(this.email, this.password)
      .then(res => {
        if (res.user) {
          console.log(res.user);
        }
      })
      .catch(err => {
        console.log(`signup failed ${err}`);
        this.error = err.message;
      });
  }