PureScript 0.13 Release • Hacker News Board

Re: PureScript 0.13 Release

#11

Post by steinuil » Fri, May 31, 2019, 4:57 PM UTC

wtetzner wrote: post #6

ergothus wrote: post #4

Earlier quoted context omitted.

Generally developers tend to either (1) misunderstand them when they encounter them in the wild or (2) accidentally invoke them. (I believe multiple languages have had issues with '04' being treated as an octal, which works fine and doesn't trigger developer notice until they encounter '09' in the wild). Whether these are VALID concerns I won't take a stance on - just saying these are the reasons I've seen cited.

Why not use 0x,0b, and 0o for hex, binary, and octal literals? I never liked the fact that a number starting with 0 was treated as octal.

OCaml does just that; it might have been the first language to have 0b and 0o prefixes for binary and octal literals.

https://discuss.ocaml.org/t/the-origin-of-the-0b-01-notation...

Re: PureScript 0.13 Release

#12

Post by truth_seeker » Fri, May 31, 2019, 4:59 PM UTC

If PureScript is Haskell, TypeScript is ML

Lately, TypeScript has become more scalable across existing npm libraries and also introduced new advanced types. It looks like Microsoft guys learned a lot from C# and F# type system and feedback from their users

https://www.typescriptlang.org/docs/handbook/advanced-types....

Re: PureScript 0.13 Release

#13

Post by McWobbleston » Fri, May 31, 2019, 4:59 PM UTC

dmitryminkovsky wrote: post #9

Are there other languages that make an opinion on tabs/spaces? This seems nice. > The only whitespace now allowed in code is ASCII space and line endings. Since you must use indentation to format PureScript code (unlike Haskell), we felt it was best to be more restrictive in what you can write instead of allowing potentially confusing behavior (implicit tab-width, zero-width spaces, etc). You can still use unicode wh…

F# doesn't allow tabs unless you use a compiler directive

Re: PureScript 0.13 Release

#14

Post by wtetzner » Fri, May 31, 2019, 5:04 PM UTC

truth_seeker wrote: post #12

If PureScript is Haskell, TypeScript is ML Lately, TypeScript has become more scalable across existing npm libraries and also introduced new advanced types. It looks like Microsoft guys learned a lot from C# and F# type system and feedback from their users https://www.typescriptlang.org/docs/handbook/advanced-types....

> If PureScript is Haskell, TypeScript is ML

If you want ML, why not OCaml with js_of_ocaml or BuckleScript?

Re: PureScript 0.13 Release

#15

Post by dwhitney » Fri, May 31, 2019, 5:17 PM UTC

Scarbutt wrote: post #8

What happened to the original author of PS? https://github.com/purescript/purescript/graphs/contributors

Like many of us, he had children and couldn't keep up with the workload, so he took a step back. Fortunately there is a very active community working on PureScript!

Re: PureScript 0.13 Release

#16

Post by natefaubion » Fri, May 31, 2019, 5:19 PM UTC

jjnoakes wrote: post #2

I noticed a few languages removing support for octal and binary literals. I wonder why. I find them useful and the parser overhead seems minimal to keep them around.

We found no usages of it in the wild. If there is real-world need for them, we'll consider adding them back.

Re: PureScript 0.13 Release

#17

Post by dwhitney » Fri, May 31, 2019, 5:22 PM UTC

truth_seeker wrote: post #12

If PureScript is Haskell, TypeScript is ML Lately, TypeScript has become more scalable across existing npm libraries and also introduced new advanced types. It looks like Microsoft guys learned a lot from C# and F# type system and feedback from their users https://www.typescriptlang.org/docs/handbook/advanced-types....

Once you get a taste for higher kinded types (aka: type constructors), there is no going back! PureScript is fantastic language with an active an open community. Best place to start (IMHO) is https://github.com/lumihq/purescript-react-basic You can pretty quickly get a react app up and running

Re: PureScript 0.13 Release

#18

Post by gb » Fri, May 31, 2019, 5:23 PM UTC

Scarbutt wrote: post #8

What happened to the original author of PS? https://github.com/purescript/purescript/graphs/contributors

Life! :)

He still uses PS and chimes in on some issues, but doesn't really have time to work on the compiler anymore: https://twitter.com/paf31/status/941745900426215424

Re: PureScript 0.13 Release

#19

Post by entropic » Fri, May 31, 2019, 5:23 PM UTC

nathanyukai wrote: post #10

dmitryminkovsky wrote: post #9

Are there other languages that make an opinion on tabs/spaces? This seems nice. > The only whitespace now allowed in code is ASCII space and line endings. Since you must use indentation to format PureScript code (unlike Haskell), we felt it was best to be more restrictive in what you can write instead of allowing potentially confusing behavior (implicit tab-width, zero-width spaces, etc). You can still use unicode wh…

I think Elm have similar rules, the official code format tool is very opinionated.

I can attest to that, elm-format is an excellent tool and it is great to have a standard code formatter, one less thing to worry or argue over when writing code!

Re: PureScript 0.13 Release

#20

Post by jahewson » Fri, May 31, 2019, 5:24 PM UTC

truth_seeker wrote: post #12

If PureScript is Haskell, TypeScript is ML Lately, TypeScript has become more scalable across existing npm libraries and also introduced new advanced types. It looks like Microsoft guys learned a lot from C# and F# type system and feedback from their users https://www.typescriptlang.org/docs/handbook/advanced-types....

I think that's a decent analogy, to an extent. Of course there's always Reason, which is actually ML.

https://reasonml.github.io