jackrusher

(def ■ '■)
(def ▲ '▲)
(def ● '●)

(first [● ■ ▲])   ; ●
(second [● ■ ▲])  ; ■
(nth [● ■ ▲] 2)   ; ▲
(rest [● ■ ▲])    ; (■ ▲)
(last [● ■ ▲])    ; ▲
(butlast [● ■ ▲]) ; (● ■)

cldwalker

Spike

I looked into the state of GraalVM and Clojure and wrote some small work-related scripts.

GraalVM Build Tools

• Downloaded GraalVM and set $GRAALVM_HOME
• Found two main libraries for building GraalVM CLIs - https://github.com/luchiniatwork/cambada#packaging-as-a-native-image and https://github.com/taylorwood/clj.native-image (or https://github.com/taylorwood/lein-native-image for the lein equivalent). I chose clj.native-image as it seemed more focused on doing one thing well.
• First tried its template example which was easy to follow.
• Then added a graalvm build to one of our small cli tools
• Found it to be pretty straightforward except for a stdout flushing issue that was trivial to fix

fnky

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

• Ctrl-Key: ^[
• Octal: \033
• Unicode: \u001b
• Hexadecimal: \x1B
• Decimal: 27

moxaj

(set! *warn-on-reflection* true)

(defn apply-fn1 [x f arg]
  ;; apply f
  x)

(defmacro apply-fn2 [x f arg type]
  (vary-meta (do
               ;; apply f
               x)

pjstadig

(ns typehint.core)

;; A little type hint hint...

(set! *warn-on-reflection* true)

;; There are two ways to type hint the return value of a function, but one is
;; (technically) wrong:

(defn ^String as-string0

reborg

Rich Already Answered That!

A list of commonly asked questions, design decisions, reasons why Clojure is the way it is as they were answered directly by Rich (even when from many years ago, those answers are pretty much valid today!). Feel free to point friends and colleagues here next time they ask (again). Answers are pasted verbatim (I've made small adjustments for readibility, but never changed a sentence) from mailing lists, articles, chats.

How to use:

• The link in the table of content jumps at the copy of the answer on this page.
• The link on the answer itself points back at the original post.

Table of Content

azimut

#!/usr/bin/env python2
import networkx as nx
import os

# decorator==4.0.10
# networkx==1.11
# pydotplus==2.0.2
# pyparsing==2.1.10
#
# http://networkx.github.io/documentation/development/examples/drawing/weighted_graph.html

balloz

diff --git a/lib/Unserialize/Parser.php b/lib/Unserialize/Parser.php
index 20a6a3c..88c6555 100644
--- a/lib/Unserialize/Parser.php
+++ b/lib/Unserialize/Parser.php
@@ -34,6 +34,7 @@ class Unserialize_Parser
     const TYPE_DOUBLE = 'd';
     const TYPE_ARRAY = 'a';
     const TYPE_BOOL = 'b';
+    const TYPE_NULL = 'N';
 

nberger

(ns views.infinite-scroll
  (:require
   [reagent.core :as r]))

(defn- get-scroll-top []
  (if (exists? (.-pageYOffset js/window))
    (.-pageYOffset js/window)
    (.-scrollTop (or (.-documentElement js/document)
                     (.-parentNode (.-body js/document))
                     (.-body js/document)))))

hedefalk

#!/bin/bash

JAVA_HOME=${1-text}
[ $# -eq 0 ] && { echo "Usage: sudo $0 \$(/usr/libexec/java_home -v '1.8*')" ; exit 1; }

KEYSTORE=$JAVA_HOME/jre/lib/security/cacerts

wget https://letsencrypt.org/certs/isrgrootx1.pem
wget https://letsencrypt.org/certs/lets-encrypt-x3-cross-signed.der
wget https://letsencrypt.org/certs/lets-encrypt-x4-cross-signed.der