2026-02-26 beginners | Clojure Slack Archive

beginners

doojin 2026-02-26T04:14:39.718339Z

I was following examples on https://clojure.org/guides/repl/data_visualization_at_the_repl.

user=> (insp/inspect-table (mapv number-summary [2 5 6 28 42]))
#object[javax.swing.JFrame 0x61dde151 "javax.swing.JFrame[frame1,0,0,400x600,layout=java.awt.BorderLayout,title=Clojure Inspector,resizable,normal,defaultCloseOperation=HIDE_ON_CLOSE,rootPane=javax.swing.JRootPane[,5,25,390x570,layout=javax.swing.JRootPane$RootLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=16777673,maximumSize=,minimumSize=,preferredSize=],rootPaneCheckingEnabled=true]"]

This results in a blank white window, but it should show a table in a white window. I installed dev-java/openjdk-bin-25.0.1_p8 on gentoo linux and clj through brew-install's clojure-tools-1.12.4.1602. openjdk-bin is a binary package.

2026-02-26T04:37:27.831669Z

It has been a while, but last I played with it swing had issues with wayland, I think particularly with multi monitor systems

Harold 2026-02-26T04:38:18.994839Z

@daslu - relevant to your interests:

user> (def _ (add-lib 'org.scicloj/noj))
#'user/_
user> (defn number-summary
        "Computes a summary of the arithmetic properties of a number, as a data structure."
        [n]
        (let [proper-divisors (into (sorted-set)
                                    (filter
                                     (fn [d]
                                       (zero? (rem n d)))
                                     (range 1 n)))
              divisors-sum (apply + proper-divisors)]
          {:n n
           :proper-divisors proper-divisors
           :even? (even? n)
           :prime? (= proper-divisors #{1})
           :perfect-number? (= divisors-sum n)}))
#'user/number-summary
user> (require '[tech.v3.dataset :as ds])
nil
user> (->> (mapv number-summary [5 6 7 12 28 42])
           (ds/->>dataset))
_unnamed [6 5]:

| :n |   :proper-divisors | :even? | :prime? | :perfect-number? |
|---:|--------------------|--------|---------|------------------|
|  5 |               #{1} |  false |    true |            false |
|  6 |           #{1 2 3} |   true |   false |             true |
|  7 |               #{1} |  false |    true |            false |
| 12 |       #{1 2 3 4 6} |   true |   false |            false |
| 28 |      #{1 2 4 7 14} |   true |   false |             true |
| 42 | #{1 2 3 6 7 14 21} |   true |   false |            false |
user> (require '[scicloj.clay.v2.api :as clay])
Clay loading...
nil
user> (clay/make! {:single-form '(->> (mapv number-summary [5 6 7 12 28 42])
                                      (ds/->>dataset))})
Clay make started:  #{nil}
Clay:  Evaluated  in 0.001 seconds
Clay:  [:wrote docs/.clay.html #inst "2026-02-26T04:36:17.321-00:00"]
{:url "",
 :key "clay",
 :title "Clay",
 :display :editor,
 :reveal false,
 :info [[[[:wrote "docs/.clay.html"] nil nil] nil]]}
user>

💜 1

2026-02-26T04:41:48.257759Z

https://github.com/swaywm/sway/wiki#issues-with-java-applications maybe something to try as well

doojin 2026-02-26T09:25:45.426229Z

I also use sway. env _JAVA_AWT_WM_NONREPARENTING=1 clj works around the issue.

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