guard
Evauluates the function wrapping the body with try/catch and returns default value if error was raised or return value is null
Installation
pubspec.yaml:
dependencies:
guard: ^1.0.3
Example
import 'package:flutter/material.dart';
import 'package:guard/guard.dart';
class User {
final String name;
User(this.name);
}
void main() {
final items = [];
guard(() => items.first, null); // null
User user;
guard(() => user, 'No user found'); // No User found
guard(() => Text(user.name), Text('Loading...')); // Loading...;
asyncGuard(() async {
await Future.error(null);
}, 42); // Future(42);
}
License
MIT
Package Rankings
Top 14.51% on Pub.dev
Badges
Extracted from project README
