<FromGitter>
<mhsjlw> I'm also curious if it is possible to extend `String` from a project to add things just project-wide
<FromGitter>
<phoffer> You’re looking for `String#rjust` and `String#ljust`
<FromGitter>
<mhsjlw> Awesome, thanks.
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<crystal-gh>
[crystal] asterite pushed 1 new commit to master: https://git.io/vSEpi
<crystal-gh>
crystal/master eae4193 Ary Borenszweig: IO#peek now returns an empty slice on EOF. Fixes #4240
<FromGitter>
<jwaldrip> So exicited! Just booked my tickets and hotel for the SF conference in may!
<FromGitter>
<jwaldrip> I would love to see who else is going. Anyway to show that on the eventbrite site?
<adam12>
@jwaldrip what do you think the trip will cost you in total?
<FromGitter>
<jwaldrip> 350 for ticket + 400 for hotel + 166 Airfare + 150 for meals and entertainment
<adam12>
@jwaldrip That doesn't seem too pad. Where you flying from?
<FromGitter>
<jwaldrip> Denver, Co
<adam12>
s/pad/bad.
<adam12>
Oh - jeez. A skip and a jump for you. LOL.
<FromGitter>
<jwaldrip> Correct, what about you/
<adam12>
I'm not going - but if I was, it would be from Niagara Falls, Canada.
<adam12>
Which means a 30% premium to buy USD, crossing the border, and some other less than stellar things.
<FromGitter>
<jwaldrip> Not too bad. My wife used to live in Syracuse.
<adam12>
Nice.
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<FromGitter>
<KCreate> Hey, is `type` a keyword in crystal? Or does it have any special role in the syntax?
<FromGitter>
<KCreate> Because github and most syntax highlighters highlight it as a keyword
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<FromGitter>
<bew> I'm trying to run crystal play in an AWS EC2 instance to test things (I'm new to aws), but I always get connection refused.. I checked with a simple python server that it's not the port that is blocked, so I don't know what to do..
<FromGitter>
<bew> it does not look like it's a crystal issue, because I can get the page from the instance itself, but not outside it
<FromGitter>
<bew> nvm I needed to bind to 0.0.0.0
<FromGitter>
<bew> but I don't need thoses libraries for the little tests I want to do
<FromGitter>
<bew> why do I still need them (libz, libssl, libcryptyo) to compile simple program ?
<FromGitter>
<bew> libcrypto*
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<FromGitter>
<sdogruyol> @jwaldrip i'll be at CodeCamp too :)
<FromGitter>
<sdogruyol> @bew they're required for std
<FromGitter>
<sdogruyol> it's not that you have all that dependencies in the binary
<FromGitter>
<bew> so why do I need them if it'll not be linked in my binary ?
<FromGitter>
<sdogruyol> because crystal std needs them?
<FromGitter>
<bew> hum..
<FromGitter>
<sdogruyol> currently we dont have statically compiled binaries (like go) by default
<FromGitter>
<bew> the stdlib needed for the program I try to compile is everything in prelude + every std requires I have in the program right ?
<FromGitter>
<sdogruyol> yeah
<FromGitter>
<bew> the program I try to compile has no require (it's the default crystal play example), and I don't think libssl, libcrypto & libz are needed in prelude stdlib..
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<FromGitter>
<bew> for example, the only way to have libssl to be needed is by requiring `openssl` and this is not required in prelude , so why do I need that ? what is the require graph that require openssl somewhere?..
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<FromGitter>
<crisward> Anyone done any stubbing in crystal ? ie, replacing a real module with a mocked one to see what methods are called with what values, then returning dummy data.
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<FromGitter>
<0800nacho_twitter> Good morning. New to Crystal here. Having so much fun. One quick question: I’m trying to get a .md file loaded in the playground. But I cannot find the correct location to place this file. I’m on macOS. I’ve tried ~/playground ~/.playground but no success so far...
<FromGitter>
<sdogruyol> yeah solnic doing a good job with rom
<FromGitter>
<0800nacho_twitter> @mjago That worked. Thanks again.
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<FromGitter>
<asterite> @bew crystal play compiles a program that sends the results via websockets, so a lot of libraries are needed besides those that you just use in the playground
<FromGitter>
<asterite> Basically the program you write in the playground gets transformed to a bigger one
<FromGitter>
<bew> oh I see, makes sense like this, but why the results are not simply gathered in the server, and when finished, sent to the playground ?
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<FromGitter>
<crisward> Ahh, does extend only work with class methods?
<FromGitter>
<chuckremes> @crisward `extend` makes class methods
<FromGitter>
<chuckremes> You want `include` to get the instance behavior you seek.
<FromGitter>
<crisward> tried include.
<FromGitter>
<crisward> Doesn't override an already created method is would seem.
<FromGitter>
<crisward> Is there something like prepend?
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<InternetFriend>
yes
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<crystal-gh>
[crystal] splattael closed pull request #3705: [WIP] Allow testing on GitLab CI (master...gitlab) https://git.io/v1SF8
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<FromGitter>
<bararchy> @sdogruyol Did you manage to compile the multi-thread Crystal ? ⏎ If so , any performance boost you can share ?
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<FromGitter>
<luislavena> @crisward I will say that reopening a class and include a module should redefine the method, so seems to be a bug (at least undefined behavior)
<FromGitter>
<luislavena> But the same thing happens on Ruby, so perhaps is by design?
<FromGitter>
<luislavena> if you're adding a lot of elements, it might be better define an initial size to avoid all the `realloc` calls
<FromGitter>
<luislavena> accessing the array in both cases will be the same (using `Indexable`)
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<FromGitter>
<schoening> Thx :)
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<FromGitter>
<elorest> So I know what *FILE* or *DIR* mean or at least how to use them. But sometimes I see other’s in macro’s for instance in the Slang templating engine a macro has *slang* in it. What does that mean and how is it defined?
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<FromGitter>
<elorest> The crystal code campe was listed as $650 for the first few days at least but now it’s $315 for early bird. Was the first price a mistake or what happened there?
<FromGitter>
<mverzilli> it wasn't a mistake, we got a lot of a feedback that it was too high for the current stage of the project so we decided to cut it down
<FromGitter>
<elorest> Ok cool. That makes sense being it was $50 more than railsconf.
<FromGitter>
<mrkaspa> Hi, I was trying to make a macro for creating a struct
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<FromGitter>
<cavariux> Hi, just wondering. I'm seriously thinking of using crystal as a language for a big project but I wanted to ask first, is Crystal stable? And what can I spec from it in the future?
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<Papierkorb>
cavariux, Crystal is in alpha/beta state, and is not stable. I want to encourage you to try it, maybe even build some small service with it, but as of now, nothing mission critical. The stdlib API isn't stable either, there can and will be breakage. On top of that, there are still a list of open syntax change requests, some of which will be accepted.
<Papierkorb>
cavariux, Crystal is in alpha/beta state, and is not stable. I want to encourage you to try it, maybe even build some small service with it, but as of now, nothing mission critical. The stdlib API isn't stable either, there can and will be breakage. On top of that, there are still a list of open syntax change requests, some of which will be accepted.
<FromGitter>
<cavariux> @Papierkorb well thanks, I hope in the future crystal becomes a great language
<Papierkorb>
It is a great language already, it's just not stable enough yet. If you know Ruby you'll feel at home
<FromGitter>
<cavariux> So, do you know any other languages with functionalities like crystal? (Be able to link c, statically typed, natural syntax and compiled?)
<FromGitter>
<jwoertink> @cavariux You could try Elixir. Not really static typed, but it does compile, and you can link C libs. Plus it has a pretty nice syntax
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<FromGitter>
<cavariux> Or what do you think guys? Should I stick to crystal (Cause I really love it) or should I go knock other doors?
<FromGitter>
<jwoertink> The more the merrier
<FromGitter>
<jwoertink> Plus, crystal will never become a solid language if no one is using it. So the more people using it for their needs, the more we can flesh out the kinks
<FromGitter>
<cavariux> Thanks I really think I will stick to crystal cause I'm really liking it
<FromGitter>
<jwoertink> :thumbsup:
<FromGitter>
<phoffer> @cavariux another vote for sticking to Crystal
<FromGitter>
<picatz> @cavariux In many ways, I would suggest looking elsewhere for the learning aspect of it. Looking elsewhere probably won't "taint" the way your feel about crystal. Maybe, in some ways, it will strengthen your love for crystal.
<FromGitter>
<picatz> As I started working with Go, I quickly found myself remembering why I really love crystal. Granted, I still pressed on and looked to learn more about another language: I just find myself really appreciating my "main" languages the more I explore out into other languages. ( Just'ma opinion of course. )
<FromGitter>
<picatz> And, Crystal was really easy to pickup and felt right at home as a "main" language. Probably something to do with my Ruby background.
<FromGitter>
<jwoertink> Anyone know of a way to do something like `%w(x y) + {1, 2}` => `{"x" => 1, "y" => 2}` ?
<FromGitter>
<jwoertink> aside from doing a few iterations to create the hash manually...
<FromGitter>
<jwoertink> or how about turning a Tuple of types in to a union?