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Clojure 1.12.0 is now available

clojure.org

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Re: Clojure 1.12.0 is now available

#41

Post by chr15m »

MarkMarine wrote: post #28

This is a wonderful language I've only just started paying attention to, watching the talks from Rich on YouTube have ruined things I loved (like Either types.) I'm struggling with how to introduce it into my company without recommending my colleagues follow my path of working through 3 books and then watching most of the conj talks from the last 12 years on 1.75x speed, while building a personal project and re-imple…

Every company likes to hear about increased productivity and less bugs, and that's what Clojure/Script gives you. The trade-off is you get less resumes when hiring. The plot twist is the resumes are much higher quality.

Re: Clojure 1.12.0 is now available

#42

Post by _xiaz »

diggan wrote: post #4

Lovely to see add-libs and sync-deps, aren't many (any?) reasons to close down a session at all now. This release feels like it had a very different scope from previous releases, contains a lot of stuff, which is exciting to see! But I hope it doesn't end up like a hairball a few releases down from increase of pace or something.

> But I hope it doesn't end up like a hairball a few releases down from increase of pace or something.

Rich Hickey and the rest of the Clojure Team are very careful designers. I wouldn't worry too much

Re: Clojure 1.12.0 is now available

#43

Post by eduction »

koito17 wrote: post #33
eduction wrote: post #30

Earlier quoted context omitted.

What do you mean by “inability to check macros”? You can s/fdef macros with spec and it checks the calls at compile time. In fact Clojure core uses spec to check macro calls as you can see in the stack trace sometimes when you call one wrong. Do you mean something else?

Here's what I mean by Malli's inability to check macros. https://github.com/clojure/clojure/blob/ad54fec/src/jvm/cloj... The Clojure compiler directly calls into clojure.spec and does not expose any sort of hook for validating macros. No library can validate macros except clojure.spec. In this sense, Malli feels like a second-class citizen in Clojure compared to the built-in clojure.spec.

Ah thanks for explaining! I did not know they special cased spec. I hope that changes.

Re: Clojure 1.12.0 is now available

#44

Post by doubleg »

koito17 wrote: post #26

I thought they were going to hold this until Clojure/conj 2024. No particular reason to believe so (besides Clojure 1.10 being released around the same time as Clojure/conj 2021 and the Datomic-becoming-free announcement being done at the very start of Clojure/conj 2023). Still waiting on spec2, though... for now I am working around rigidity of specs by using Malli but it really isn't a first-class citizen in Clojure…

I really wanted schema/select after watching “maybe not”, so wrote a library for malli: https://github.com/eval/malli-select

Re: Clojure 1.12.0 is now available

#45

Post by simongray »

eduction wrote: post #31
diggan wrote: post #4

Lovely to see add-libs and sync-deps, aren't many (any?) reasons to close down a session at all now. This release feels like it had a very different scope from previous releases, contains a lot of stuff, which is exciting to see! But I hope it doesn't end up like a hairball a few releases down from increase of pace or something.

Pure speculation but I believe this is the first release since Rich Hickey left nubank so could be more attention from him.

They've also hired Michael Fogus to work on Clojure, so more resources are definitely being put into developing the language.

Re: Clojure 1.12.0 is now available

#46

Post by jiehong »

haolez wrote: post #5
tgerdin wrote: post #2

Looks like a pretty solid release, very happy that Clojure is still going strong!

Is it going strong? I'm evaluating it for a new project. I'm considering it together with Clara[0]. However, it does give a vibe that it's not as mainstream as it was before and that the ecosystem is more sparse than what is once was. I'm not trying to troll. I want to choose it. It seems like a good engineering decision to me, but if it's nosediving in popularity and contributors, this might bite me back in the near…

NuBank[0] mainly use clojure for most of their software, and NuBank is a big yet quickly growing company.

[0]: https://en.wikipedia.org/wiki/Nubank

Re: Clojure 1.12.0 is now available

#47

Post by geokon »

fire_lake wrote: post #36
contrarian1234 wrote: post #25

This is really a massive release with many cool new features My personal favorite is add-libs You can now write single file demos or minimal examples for issues. Really lowers the friction to share small runnable snippets with people You can also actually use it to demo Java libraries as well without all the Java boilerplate. Just poke around in the REPL and paste code into a comment on HN or wherever and anyone can…

Cool! You should post an example :)

Just tested it:

You run `clj` to get a Clojure REPL

Then you can for instance paste the following into the REPL

    (add-libs {'thi.ng/geom {:mvn/version "1.0.0-RC4"}})
    (use 'thi.ng.geom.viz.core)
    (use 'thi.ng.geom.svg.core)

    (->> {:x-axis (linear-axis
                {:domain [-10 310]
                    :range  [50 550]
                    :major  100
                    :minor  50
                    :pos    150})
        :y-axis (linear-axis
                {:domain  [0 4]
                    :range   [50 150]
                    :visible false})
        :data   [{:values  [[0 100] [10 90] [80 200] [250 300] [150 170] [110 120]
                            [210 280] [180 280] [160 240] [160 170]]
                    :attribs {:stroke-width "10px" :stroke-linecap "round" :stroke "#0af"}
                    :layout  svg-stacked-interval-plot}]}
        (svg-plot2d-cartesian)
        (svg {:width 600 :height 200})
        (serialize)
        symbol)
- the first line downloads a library and adds it to the running session

- the second and third line add the library to the REPL's default namespace

- the rest of the code makes an axis and plots some random values

- the output is then serialized and send out the REPL output

You should get a little SVG plot on the output

PS: Make sure you have version `1.12` by running with `clj --version`. If not, then (re)run the instructions here to get the latest version: https://clojure.org/guides/install_clojure

Re: Clojure 1.12.0 is now available

#49

Post by FranzFerdiNaN »

MarkMarine wrote: post #28

This is a wonderful language I've only just started paying attention to, watching the talks from Rich on YouTube have ruined things I loved (like Either types.) I'm struggling with how to introduce it into my company without recommending my colleagues follow my path of working through 3 books and then watching most of the conj talks from the last 12 years on 1.75x speed, while building a personal project and re-imple…

Dont. It wont be appreciated because nobody but you can work on it, and one day you wont work there anymore and the company is stuck with a few projects in Clojure while the rest is on their regular tech stack. You are creating a major company risk just for your own personal benefit.

Re: Clojure 1.12.0 is now available

#50

Post by geokon »

fire_lake wrote: post #36
contrarian1234 wrote: post #25

This is really a massive release with many cool new features My personal favorite is add-libs You can now write single file demos or minimal examples for issues. Really lowers the friction to share small runnable snippets with people You can also actually use it to demo Java libraries as well without all the Java boilerplate. Just poke around in the REPL and paste code into a comment on HN or wherever and anyone can…

Cool! You should post an example :)

Here is an example playing with BooFCV's Java API

It'll pop up a little window displaying an image

    (add-libs {'org.boofcv/boofcv-all {:mvn/version "0.35"}})
    (import 'boofcv.alg.color.ColorRgb
            'boofcv.core.image.ConvertImage
            'boofcv.gui.ListDisplayPanel
            'boofcv.gui.image.ShowImages
            'boofcv.io.UtilIO
            'boofcv.io.image.ConvertBufferedImage
            'boofcv.io.image.UtilImageIO
            'boofcv.struct.image.GrayU8
            'boofcv.struct.image.ImageType
            'boofcv.struct.image.Planar
            'java.awt.image.BufferedImage)
    (let [image-url  "https://kxygk.github.io/web/chengdu.jpg"
          color (ConvertBufferedImage/convertFrom (UtilImageIO/loadImage image-url)
                                                  true,
                                                  (ImageType/pl 3 GrayU8))
          weighted (GrayU8. (.width color)
                            (.height color))
          gui (ListDisplayPanel.)]
      (ColorRgb/rgbToGray_Weighted color weighted)
      (.addImage gui
                 weighted
                 (str (.width color)
                      " "
                      (.height color)))
      (ShowImages/showWindow gui
                             "RGB222"
                             true))
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