Function toggleSignIn

auth/anon.ts:32–48

* Handles the sign in button press.

()

 * Handles the sign in button press.
 */
function toggleSignIn() {
  if (auth.currentUser) {
    signOut(auth);
  } else {
    signInAnonymously(auth).catch(function (error) {
      // Handle Errors here.
      const errorCode = error.code;
      const errorMessage = error.message;
      if (errorCode === 'auth/operation-not-allowed') {
        alert('You must enable Anonymous auth in the Firebase Console.');
      } else {
        console.error(error);
      }
    });
  }
  signInButton.disabled = true;
}

// Listening for auth state changes.
onAuthStateChanged(auth, function (user) {