result_option 1.0.2

The types that represent the result of the operation. this is useful when designing API requires that an user should handle errors explicitly.

The types that represent the result of the operation. this is useful when designing API requires that an user should handle errors explicitly.

Installing

dependencies:
  result_option:

import 'package:result_option/result_option.dart';

Usage

• Result

  final result = fetchCompanies(startsWithG: true);
    
  result.match(
    ok: (c) => print(c),
    err: (e) => print(e),
  );
  

  • Construct

    Result<int, String> value = ok(calculate('3+5/2'));
    Result<int, String> failed = err('Calculation failed');
    

• Option

  Option<SomeObj> maybeObj = SomeObj.fromJson(json);
    
  SomeObj obj = maybeObj.unwrap() ?? defaultObj;
  SomeObj obj = maybeObj.unwrapOr(orElse: () => defaultObj);
  

  • Construct

    Option<int> value = some(1);
    Option<int> nothing = none();
    

Features and bugs

here