verify_email.dart

Future<void> verifyEmail() async {
    var firebaseUser = await _auth.currentUser();
    // Initiates email verification for the user.
    firebaseUser.sendEmailVerification();
    // Returns true if the user's email is verified.
    if(firebaseUser.isEmailVerified){
      // email is verified
    } else{
      // email is not verified
    }
  }