title: How to know whether the Register Email is verified or not in Firebase?
body: <pre><code>onSubmit(formData) {
  if(formData.valid) {
    console.log(formData.value);
    this.af.auth.createUser({
      email: formData.value.email,
      password: formData.value.password
    }).then(
      authState =&gt; {
      authState.auth.sendEmailVerification();
      this.router.navigate(['/login'])
    }).catch(
      (err) =&gt; {
      console.log(err);
      this.error = err;
    })
  }
  }
  </code></pre>
  
  <p>In Firebase, I set the <code>SendEmailVerfication</code> like the code above, and the email could send normally.However, in my app, there is no difference between the user who does not click the verification email with those clicked, how to make a difference?</p>