Earlier quoted context omitted.
Row polymorphism and algebraic data types if we want to talk about things Dart does not have, with an enormous ecosystem at your disposition. If we want to prioritize a sound type system, why then go for a language that is for the most part Java but with no ecosystem, instead of something like Reason/OCaml, Haskell, PureScript which absolutely blow Dart out of the water as languages; or even if your number one priori…
If you talk about ecosystem as a number of community-built packages for a language then this argument is meaningless. Just start creating packages for this language and very soon you'll have a rich ecosystem too. This is not an inherent characteristic of a language itself, it's something powered by the community and built over time. The larger community is => the better ecosystem we get. Re: lacking features. Feel fr…
And yes, we can submit feature requests, and the language authors may and may not add them. I'd rather go for a language that further aligns with the expectations of a modern language from the start rather than plead with the authors to turn it into something it's not.
> Dart is a language that's predictable (no WATs),
Ok, so it beats the raw JS with no dev tooling development experience. That's the bare minimum.
> performant
Plenty of performant languages to go around, including many more performant ones.
> has the best built-in tooling to facilitate quick iterative development
What does it bring over any other language with a semi-decent REPL?
> the best package manager
You'll have to expand on this, it's a very bold claim.
> and can be used to build web, mobile and desktop apps with high level of shared codebase between them.
So can any compile to JS language, Kotlin, C#, Clojure, among others, and since you place so little value on ecosystem I'll throw a special mention to Idris in too, which can compile to performant JS, the JVM (no bridge necessary on Android), C (usable on iOS) and pretty much whatever; and almost guaranteed blows any other language you can name out of the water when it comes to modern features and being pragmatic.