What's New in F# 4.1? [video]
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What's New in F# 4.1? [video]
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Re: What's New in F# 4.1? [video]
#2I feel like the title lacks the "[video]" tag. Unless I've missed the text version somewhere on that page.
Re: What's New in F# 4.1? [video]
#3I feel like the title lacks the "[video]" tag. Unless I've missed the text version somewhere on that page.
good point! sorry for not adding it right away
Re: What's New in F# 4.1? [video]
#4Also for those that rather read the blog post, check this out, A Peek into F# 4.1: https://blogs.msdn.microsoft.com/dotnet/2016/07/25/a-peek-in...
Re: What's New in F# 4.1? [video]
#5We need HKT. F#. Cmon... I love F# but seriosly...
Re: What's New in F# 4.1? [video]
#6We need HKT. F#. Cmon... I love F# but seriosly...
Do we really need them?
Re: What's New in F# 4.1? [video]
#7Wait what, doing this as an alias
type ProductId = ProductId of int
Re: What's New in F# 4.1? [video]
#8We need HKT. F#. Cmon... I love F# but seriosly...
What's hkt?
Re: What's New in F# 4.1? [video]
#9Wait what, doing this as an alias type ProductId = ProductId of int Meant it allocated an instance on the heap for it before 4.1? Wow.
That isn't actually an alias. That is constructing a single-case discriminated union. DUs are compiled into classes and have a few things automatic equality.
Generally speaking, it's better to use Units of Measure[0] when you want some compile-time semantics around numeric literals, as these don't incur the performance penalty of creating a class.
[0]: https://docs.microsoft.com/en-us/dotnet/articles/fsharp/lang...
Re: What's New in F# 4.1? [video]
#10We need HKT. F#. Cmon... I love F# but seriosly...
What's hkt?
Higher-Kinded Types
"With higher-kinded types [...] type operators can be parameterized by other type operators. Java doesn’t support higher-kinded types, but, if it did, you would be able to write something like this:"
class GraphSearch {
T frontier;
}