title: Does not add a user to Firebase
body: <p>I am trying to add users to my Firebase cloud</p>
  <p>I connected my project to the console.firebase</p>
  <p>While I fill in the email and password it is not adding to my firebase.</p>
  <p>I have the following code:</p>
  <pre><code>@IBAction func registerButton(_ sender: Any) {
  
      signUp()
      
  }
  </code></pre>
  <p>this is a button for register</p>
  <p>and this is the func signup:</p>
  <pre><code>  func signUp (){
      
       let name = nameValue.text
       let password = passwordValue.text
       let email = emailValue.text
       
       if (!password!.isEmpty &amp;&amp; !email!.isEmpty) {
           Auth.auth().createUser(withEmail: email ?? &quot;&quot;, password: password ?? &quot;&quot;) { (result, error) in
               if error == nil {
                   if let result = result {
                   }
               }
           }
       }
       else {
           showAlert()
       }
  }
  </code></pre>
  <p>Can anybody help to figure out this problem?</p>