Bob Nystrom

Yes, we aren't going to get any kind of record update in the initial release.

This is an interesting corner. We could do some kind of single-value null-aware element syntax like you suggest. I'm very hesitant to pile more semantics onto `?` because it's already...

I think the only difference is that in #219, you propose allowing `?` to elide arguments in argument lists as well. Otherwise, I think they're the same.

In case you're curious, I wrote a blog post a while back about the rationale behind that design choice: https://medium.com/dartlang/why-nullable-types-7dd93c28c87a

The first four examples you link to don't create read-only lists, they create *mutable fixed-size* ones. Likewise, uses of `unmodifiable()` and friends don't always create *immutable* lists, they create read-only...

I think the proposal does specify most of this, and the answers are: ```dart const int x = 3; const int y = 3; void main() { int q =...

While I'm not generally a huge fan of trailing commas, I agree completely that if we support them, we should support them uniformly. Heck, we already even allow them in...

> Is it personal preference or is there some non-obvious reason why you have that opinion? Like Lasse said, I don't generally like having two ways to say the same...

> Does the pattern `{'k': true}` match maps with more than one key? I guess it must, otherwise the cases above wouldn't even be near exhaustive for maps. Yes, according...

> As long as I understand your worry regarding how practical this will be, do we want to make it impossible to match maps strictly? What if the user wants...