<FromGitter>
<Konfuscious_twitter> I am reading in a CSV file using CSV.parse, but I'm having trouble casting the Array(Array(String)) into Array(Array(Int32))
<FromGitter>
<Konfuscious_twitter> (My next step involves getting Array(Array(Int32)) as input, but I would like to avoid casting it element by element)
<jokke>
right
<jokke>
lemme check
<jokke>
hm ok there doesn't seem to be any built-in method to convert values
<FromGitter>
<lukeajtodd> I think the way that makes most sense would be to loop through the elements no? and just `to_i` the values as you go?
<FromGitter>
<Konfuscious_twitter> My chance to contribute? :D
<FromGitter>
<Konfuscious_twitter> Yes, Luke, that would definitely work, I was more interested in seeing if there's a simpler solution I'm perhaps not seeing
<jokke>
i don't think there is
<FromGitter>
<j8r> there can't because a CSV is strings, there is no type officially
<FromGitter>
<Konfuscious_twitter> Alright, I'll definitely have a look when I can, cheers
<FromGitter>
<lukeajtodd> I am a complete beginner with Crystal, how do we actually go about contributing? Is there a doc somewhere for this? I really like the lang and would love to be able to do that!
<FromGitter>
<vladfaust> @jokke strange, I did `.rewind` in the example above and `.pos` returned 0, but `gets_to_end` still returned "". Nevermind, however, I got it working. Thanks!
<jokke>
👍
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<FromGitter>
<j8r> How can I resolve the relative path of a symlink? `File.real_path` always returns the absolute one
<FromGitter>
<j8r> e.g. with `ls -l` I've `... 10 Aug 21 15:00 symlink -> real_file`
<FromGitter>
<straight-shoota> @j8r you need `readlink` for that. There are currently no bindings implemented in stdlib, though.
<FromGitter>
<j8r> 255 is the max path size in bytes?
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<FromGitter>
<straight-shoota> yeah
<FromGitter>
<straight-shoota> might not be enough in some cases
<FromGitter>
<straight-shoota> a more sophisticated implementation needs to check if `size < buffer.size` and increase the buffer otherwise.
<FromGitter>
<straight-shoota> also missing are error handling, unicode characters etc.
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<FromGitter>
<rishavs> I am struggling a bit with ECRs. I am trying to render define a route with a view as; ⏎ ⏎ ``` code paste, see link``` ⏎ ⏎ I don't want to write my own macros, so the Layout + Page implementation of Kemal will not help me much. [https://gitter.im/crystal-lang/crystal?at=5b7c2673a491f459177e4a7e]
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<FromGitter>
<rishavs> TLDR; how do I pass a variable/object to a ECR.render function?
<FromGitter>
<fridgerator> I have no experience with ECR, but the examples in the api documentation show you have use it within a Class
<FromGitter>
<fridgerator> and the instance variable are what get used in the template
<FromGitter>
<rishavs> hmmm.... gonna give it a try. Thanks @fridgerator
<FromGitter>
<paulcsmith> You can't use a variable in the filename because it is compiled at compile time
<FromGitter>
<paulcsmith> Or you can, but it needs to be a variable at compile time, defined in a macro like `{% page = "my-wonderful-page' %}`
<FromGitter>
<rishavs> but the example for macros here https://crystal-lang.org/api/0.26.0/ECR.html#render%28filename%29-macro seem to sggest i can pas a simple variable "name" to my ECR.render without doing anything
<FromGitter>
<girng> hello friends once again! miss u all
<FromGitter>
<bararchy> @girng hi dude :) long time
<FromGitter>
<girng> @bararchy i just thought i'd come here after seeing that thread on reddit. i hope nothing is going to happen to crystal ;)
<FromGitter>
<bararchy> what thread?
<FromGitter>
<girng> "Will Crystal survive ?" one in crystal sub
<FromGitter>
<asterite> Rishav Sharan that variable is being used in the template. You can't interpolate a variable in the path to the ecr file.
<FromGitter>
<rishavs> yeah, but I managed to take care of my use case without using macros.
<FromGitter>
<paulcsmith> @rishav you can’t use variable names in the file name, but you have access to all methods and variables within scope
<FromGitter>
<paulcsmith> Sorry. Was a bit late on that :)
<FromGitter>
<j8r> I really wonder who is fridgamarator and the-asterite 😄
<FromGitter>
<girng> hahahah
<FromGitter>
<paulcsmith> You’re welcome. I’m glad you got it working
<FromGitter>
<paulcsmith> @rishavs
<FromGitter>
<asterite> I'm the-asterite. I had another asterite but got tired and deleted it, then tried to re-create it but it's impossible in reddit (another proof of my bi-polar attitude :-P)
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<FromGitter>
<asterite> j8r: that's the one and only asterite ;-)
<FromGitter>
<jwoertink> lol I remember that game. I used to get so mad at it
<FromGitter>
<girng> i have a question about cores / number of crystal apps running
<FromGitter>
<girng> so basically since crystal will utilize 1 core in my i7 2600 cpu, if i load up another separate terminal and run crystal again, i will be essentially utilizing 2x cores then?
<FromGitter>
<girng> assuming they are using fibers in the apps
<FromGitter>
<j8r> Yes there will have 2 processes in two threads
<FromGitter>
<j8r> they can run on the same or different cores, this is up to the OS
<FromGitter>
<girng> kk, ty!
<FromGitter>
<girng> I just made some smores... my lord they are my fav snack/candy. i charred the marshmellows with a lighter lol
<FromGitter>
<girng> loop do sleep is so niccee, love it
<FromGitter>
<girng> in node, i always had to do setInterval(function(){ code }, 1000) or whatever. now, it's just loop do sleep and end. much easier to write lol
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<FromGitter>
<jwoertink> I hate marshmallows, but somehow, s'mores just make them so much better especially when on fire 😂
<FromGitter>
<rishavs> Quick question, if I need to create thousands of dataobjects, is it leaner to create them as classes or hash objects? For example, if I need to create 1000 comments on my page, should I create a comments class and fill the data in each instance or should I create an array of hashes?
<FromGitter>
<jwoertink> My guess would be a static array of tuples
<FromGitter>
<jwoertink> but purely a guess without having done any sort of benchmark
<FromGitter>
<paulcsmith> I'm not sure, but my guess is that unless you need the absolute fastest thing possible, it would be better to create a class or struct. Hashes/NamedTuples are not very flexible. You can't add methods to them, it's hard to write type signatures for them since every time you add a key, you need to change the type sig.
<FromGitter>
<paulcsmith> You may be able to use a struct, but that depends on what you're doing
<FromGitter>
<rishavs> Well performance is a criteria, but only if there is a huge difference between the two approaches. Currently, i am using both classes and hashes in my code and want to standardize it.
<FromGitter>
<paulcsmith> I think the performance hit would be minimal, but I'd be curious to see what your benchmarks show
<FromGitter>
<rishavs> well i was asking because i am too lazy to benchmark :D
<FromGitter>
<rishavs> But you have convinced me about using classes, so classes it is now :D
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<FromGitter>
<paulcsmith> Haha right on :)
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<FromGitter>
<asterite> Classes are much lightweight and efficient than hashes. Always
<FromGitter>
<asterite> And they are type-safe
<FromGitter>
<asterite> You'd only use hashes like that in a dynamic language, almost never in a statically typed language
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<FromGitter>
<rishavs> @asterite thanks! good to know that
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<FromGitter>
<paulcsmith> Just curious if we have a rough timeline on when 0.26.1 might be released?
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<hightower2>
Hey, with Kemal, I use the file upload feature and along with an upload I am sending a custom param. Looking into network data, it is being sent (along with other parts): Content-Disposition: form-data; name="page_name" value="home". How do I read this value on the Kemal side?
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<hightower2>
I do not see this value anywhere in env
<hightower2>
got it
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<robacarp>
macros which accept blocks which accept arguments: not a thing?
<robacarp>
I swear I've done this before...
<robacarp>
I swear I've done this before...
<robacarp>
dammit
<robacarp>
ah, it was an unrelated bug
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<FromGitter>
<paulcsmith> @robacarp Do you have an example? I think I tried doing that before but couldn't figure it out
<FromGitter>
<HCLarsen> Yo @robacarp , I'm just reading through one of your libraries, got a quick question about it.
<robacarp>
okay, go ahead
<FromGitter>
<HCLarsen> icmp.cr. What happens when there's no response from the server you're pinging? Does the library just hang, or does it return an error after a certain period of time?
<robacarp>
@HCLarsen does icmp.cr work under crystal 0.26? I haven't tested it
<FromGitter>
<HCLarsen> Ahh, just saw how to do that in the specs. Is that parameter in seconds?
<FromGitter>
<HCLarsen> I haven't actually tested your library yet, or installed Crystal 0.26. I should probably get on that latter.
<robacarp>
I don't see any evidence that it is in seconds, but I'm assuming it is.
<robacarp>
If you end up running it on 26, let me know success or failure, I'd appreciate it.
<FromGitter>
<HCLarsen> I probably will end up running it on 26.
<FromGitter>
<HCLarsen> I'm looking to write a quick bit of code that checks for an internet connection, and pinging a DNS server is the best method that I've thought of so far.
<FromGitter>
<HCLarsen> Hence, what brought me to your lib
<robacarp>
cool! I hope it works for you, I use it for monitoring uptime on various services around the internet
<FromGitter>
<HCLarsen> That's a cool idea too.
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<FromGitter>
<PlayLights_twitter> Hello! Does Crystal Spec has a "before_all" ?