F#

“letting the compiler tell the AI "nope, here's why" seems like a huge win in saving cycles and time”

“C#/F# are great languages and I use them for almost everything that doesn't have extreme real-time constraints.”

“the people writing F# are more likely to have some actual engineering because it's an ML but just .NET flavoured”

“F# is good because it can easily fetch and import third party dependencies in a script.”

“I love the semantics of many indentation based languages (F# for example) but really dislike editing them”

“have type systems expressive enough that using them to track escaping is not an absolute hassle”

“near useless for systems programming and predictable behavior when caring about performance”

“in the stronger languages you can reason about larger swaths about domain concepts easily”

“If only Microsoft had more love for F# instead of slowly copying its features into C#.”

“F# has type providers, which lets the compiler construct nominal types based on the structure of real data”

“the slightly-peculiar nature of F#'s indentation rules means tabs are less flexible in F# code”

“They have always behaved as if it had been a mistake to promote F# from research project”

“once you've used a language with good union and pattern matching support, this feels like a clunky hack”

“F# is just as easy with a pen, but far more powerful and with a powerful type system and aggressive compiler”

“F# is so elegant and terse for writing functional-style wrappers around OO code packages”

“also either in the dotnet 9 or 10 timeframe f# added an attribute to make it so a recursive call that isn't a tail call throws a compiler error”

“I would've loved an F# that found a way to improve on the performance issues, especially when using computation expressions.”

“Microsoft's management has always behaved as if it was a mistake to have added F# into Visual Studio 2010”

“reames of weird .Net errors that were never fixed and hard to understand or speculate about”

“you get the conciseness of a scripting language but with a type system that catches errors before you run anything”

“I quite enjoy C# and F# and while they are low boiler plate, you can really learn them in a week or two”

“F# discriminated unions are even better for this with algebraic data types built right in”

“you can use a single case discriminated union to get that behaviour fairly cheaply, and ergonomically”

“the closest thing to a rich type system yet pragmatic enough is to me F# and it’s still falls short as formal verification and ecosystem integration”

“F# was years ahead of the major languages on what are increasingly looking like 'the basics'”

“tame this a bit with things like the forward application operator |> that, in my opinion, largely solve the readability problem”

“It's maintained by like 5 people working in eastern Europe and they only do maintenance updates basically.”

“F# is an outlier, that is a real community project with lots of contributions from companies and enthusiasts”

“I also really didn't like having to to Seq.map or List.filter for everything instead of just calling methods off of the seq or list.”

“F# also has substantially better type inference so you don't need to write the types out everywhere”

“Terse languages with great collection functions in the standard libraries and tail call optimization.”

“hiring/onboarding for F# hasn't at all been a limiting factor. Ultimately F# is not a particularly difficult language to learn.”

“F# is a really good OOP language. It's also concise, so I don't spend as much time jumping around files”

“Thankfully F# is more community driven, but the CLR ecosystem is definitely getting C#-centric”

“F# would be awesome but for the dogs*t .Net backend that made the tiniest error insoluble”

“The use case for F# seems to be shrinking because MS is putting all its energy in language.”

“F# has plenty of features that OCaml doesn't have like proper cross-platform support, proper deployment”

“F# also has a real slow compiler. Last time hello world took a few secs on brand new mac.”

“F# has a similar whitespace syntax to Python, but is statically typed and can be compiled AoT.”

“In F#, you interoperate with Task transparently, and there is a number of community libraries to further enhance the experience.”