Question 79490 in Flutter Question posted in
The official Flutter documentation can be found here.

"A nullable expression can't be used as a condition.nTry checking that the value isn't 'null' before using it as a condition – Flutter

 handleSignUp() async {
      if (await authProvider.register(
        name: nameController.text,
        username: usernameController.text,
        email: emailController.text,
        password: passwordController.text,
      )){

please help me for this to solve thanktyouuu

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2

Answers


  1. 0

    It is possible your register will return null, you can directly use

    if(await method()==true){...}

    I will prefer to create a separate variable for this.

    final bool isRegistered  = await authProvider.register(
        name: nameController.text,
        username: usernameController.text,
        email: emailController.text,
        password: passwordController.text,
      ) ?? false; // providing false on null case

 if(isRegistered) { ....}
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  2. 0 
    if (await authProvider.register(
      name: nameController.text,
      username: usernameController.text,
      email: emailController.text,
      password: passwordController.text,
    ) !=
    null) {
  print('Registered');
}else{
  print('Something went wrong');
}
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