crystal-lang/crystal

The Crystal programming language | http://crystal-lang.org | Fund Crystal's development: http://is.gd/X7PRtI | Docs: http://crystal-lang.org/docs/ | API: http://crystal-lang.org/api/

Chris Watson

@watzon

@rishavs VS Code currently has the best Crystal support. It's not stellar, but that's more a lack of a decent language server than anything.

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@FromIRC

<ua_> he waited whole 6.5 minutes lmao

George Dietrich

@Blacksmoke16

hm?

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@FromIRC

<ua_> i mean Guest12

<ua_> and he should just use react / react native if anyone cares about answer to his question lol

Daniel Worrall

@Daniel-Worrall

Oh, did he leave the irc?

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@FromIRC

<ua_> no html/css sure, sadly its the world we live in

Chris Watson

@watzon

He said he didn't want to touch HTML/CSS

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@FromIRC

<ua_> yeah

Chris Watson

@watzon

Flutter is the way imo

Daniel Worrall

@Daniel-Worrall

Flutter is nice

Rishav Sharan

@rishavs

flutter is indeed his best bet

George Dietrich

@Blacksmoke16

just return JSON

who needs a UI

Chris Watson

@watzon

UIs are for chumps

George Dietrich

@Blacksmoke16

ascii art formatted tables

Chris Watson

@watzon

Just emulate VIM

Rishav Sharan

@rishavs

just hire mimes to read the json and act on it

aaaScript

@aaaScript

@aaaScript Empty @sockets explains why close doesn't work. p @sockets before & after bind & listen(). The array probably gets nuked after listen or it wouldn't accept connections at all

@didactic-drunk It returns socket output after bind_tls and listen as expected. However, it just seems to get wiped like you mentioned. It's kind of weird. I'm not overwriting the object or anything.

ddd

@Dan-Do

@Guest12 you can try Mint

Quinton Miller

@HertzDevil

https://www.pcre.org/original/changelog.txt

libpcre reached end-of-life

Ali Naqvi

@naqvis

log back ago, I commented to migrate to pcre2, but ...
https://github.com/crystal-lang/crystal/issues/8199#issuecomment-533171075

Alex Kampa

@alex-kampa

h = Hash(String, String | Hash(String, String)).from_json(jmsg)

results in a compile-time type of

(Hash(String, Hash(String, String) | String) | Nil)

which measn that h.keys throws an error. How can I force h to be a hash?

ie never Nil

Is using is_a? the only way?

George Dietrich

@Blacksmoke16

where is the nil coming from?

Alex Kampa

@alex-kampa

So I simply added this to convince the compiler:

h = h.nil? ? Hash(String, String | Hash(String, String)).new : h

I would guess the nil is because the initial "h = ..." assignment is inside a begin rescue end

Daniel Worrall

@Daniel-Worrall

Yes, you need to compile time check nil.
You can do h ? not_nil_here : nil_here

which is shorthand for if h etc.

This works since it is truthy when not nil

I'm unsure how this works with compile type of Bool | Nil, but I guess it would be true only in the first branch and false | nil in the second

George Dietrich

@Blacksmoke16

what do you have in the rescue portion tho?

sounds like you're just not handling the case where an exception is raised

Ali Naqvi

@naqvis

@alex-kampa For your specified use-case, i would suggest to go with JSON::Serializable and create a general class, which consumes any json string and returns Hash representation.
https://play.crystal-lang.org/#/r/bf2g

Daniel Worrall

@Daniel-Worrall

While recommendations are appreciated, the nilable hash and original has nothing to do with that. fyi

Chris Watson

@watzon

You know how in Crystal you can use a generic like T and then use T.class to say that you want the class rather than an instance of that class? Any idea how to accomplish the same in Typescript?

Gabor Szabo

@szabgab

I have been lurking here for a while, but I guess I should say hi, before I start asking questions. I have been learning Crystal in the last couple of weeks. I started to create a web site collecting data about shards, but then straight-shoota pointed at his shardbox an already existing (and much better looking) system. We then had a live coding session in which he explained about the shardbox and then we even created a small change. Anyway, I keep learning Crystal and I guess I'll ask some questions here. I hope it is ok even though they will be probably very basic.

George Dietrich

@Blacksmoke16

Chris Watson

@watzon

Welcome @szabgab

Benjamin Clos

@ondreian

is everyone just using minimal Travis image these days since the language: crystal doesn't work?

George Dietrich

@Blacksmoke16

pretty no one is using travis anymore and just switched to GH Actions

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@FromIRC

<jhass> or whatever else, just stopped using travis. They got bought out and basically none of the original open source folks is there anymore

Benjamin Clos

@ondreian

I see. crystal init still generates a .travis.yml file

George Dietrich

@Blacksmoke16

it wont starting next release

Benjamin Clos

@ondreian

cool deal, it had been awhile since I needed to init a new project but was kind of :corn: fused about what was going on. Thanks.

Gabor Szabo

@szabgab

@ondreian , there is this nice form that helps generating a minimal config file for GitHub Actions: https://crystal-lang.github.io/install-crystal/configurator.html

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@FromIRC

<straight-shoota> Great to have you here, szabgab =)

Rishav Sharan

@rishavs

Has anyone here used google sign in for their sites? Would you know what "data-nonce" is?
Is it the secret string that we need to match with the google response to make sure it is our own request?

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