Add to the documentation the recommended way and tradeoff for error handling.

[stephane-archer]

Page URL

https://dart.dev/language/error-handling

Page source

No response

Describe the problem

The page about error handling only talks about Exceptions and Assert. It almost feels like exceptions are "the way" of doing error handling in Dart.
The page should discuss returning null values as errors (Type?) and how to choose when to use exception or null return values. What are the actual trade-offs in terms of performance or maintainability and what does the Dart team recommend?
With the async nature of Dart and the different platforms, I miss a lot of clarity on how to make good error handling in Dart

Expected fix

No response

Additional context

No response

I would like to fix this problem.

• I will try and fix this problem on dart.dev.