The Try control gives us the ability write safe code without focusing on try-catch blocks in the presence of exceptions.

Before

void main() {
  String? randomWord;

  try {
    randomWord = getRandomWordFromServer();
  } catch (e) {
    randomWord = 'fallback';
  }
}

With Try

void main() {
  final randomWord = Try.of(() => getRandomWordFromServer()).orElseGet('fallback');
}

Immutability

With try catch we will have to split initialization and declaration. This forces us to make variables mutable, although they might only get assigned a value once.

Null Safety

If we use try catch control flow we might have a different Variable type. Below we declare randomWord to be nullable. Now getRandomWordFromServer might return String? as well. We lose our strict null safety.

It's easier to read

Features

Wrap Code that might throw an error with Try.of(() => doSomething())
Get result immediately if sure there is no error
Return alternative the event of an error
- tryable.orElse(() => elseFunction());
- tryable.orElseGet('value')