dustingetz

Clojure namespace browser – Hyperfiddle example app

See source code below.

ConnerWill

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

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

IGJoshua

(require '[clojure.spec.alpha :as s])

(defn- regex-cond-helper
  [expr-sym clauses default]
  (if-not (empty? clauses)
    (let [inner-clause (regex-cond-helper expr-sym (rest clauses) default)
          {:keys [regex bindings body] :as clause} (first clauses)
          regex (case (first regex)
                  :regex (second regex)
                  :else `(re-pattern ~(second regex)))

borkdude

#!/usr/bin/env bb

;; Example usage:
;; api_diff_bb.clj org.clojure/clojure "1.9.0" "1.10.1"

;; Output:
;; clojure/core_deftype.clj:587:1: warning: Arity 4 of clojure.core/emit-method-builder was removed.
;; clojure/core/reducers.clj:24:1: warning: clojure.core.reducers/compile-if was removed.

(require '[babashka.pods :as pods])

ericnormand

Number of hands of poker

Poker users a 52-card deck, where each card is unique. After shuffling, a player gets five random cards. How many different hands are there? Remember, in poker, the order of the cards in your hand does not matter.

Write a function that takes the number of cards in a hand h and the number of cards in the deck d and calculates how many possible hands there are.

(defn combinations [d h]
  .....
)

yogthos

Introductory resources

• High level overview https://yogthos.github.io/ClojureDistilled.html
• An Animated Introduction to Clojure https://markm208.github.io/cljbook/
• Interactive tutorial in a browser https://tryclojure.org/
• Interactive exercises http://clojurescriptkoans.com/
• Clerk notebooks with introductory examples https://github.clerk.garden/anthonygalea/notes-on-clojure
• More interactive exercises https://4clojure.oxal.org/
• Lambda Island tutorials https://lambdaisland.com/
• Functional Programming with Clojure resources https://practicalli.github.io/

koshatul

gpg-agent setup

Need to setup gpg-agent first, on OSX I use keychain (it also does ssh-agent)

$ brew info keychain
keychain: stable 2.8.5
User-friendly front-end to ssh-agent(1)
https://www.funtoo.org/Keychain
/usr/local/Cellar/keychain/2.8.5 (7 files, 108.5KB) *

fnky

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

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

jashkenas

Spurred by recent events (https://news.ycombinator.com/item?id=8244700), this is a quick set of jotted-down thoughts about the state of "Semantic" Versioning, and why we should be fighting the good fight against it.

For a long time in the history of software, version numbers indicated the relative progress and change in a given piece of software. A major release (1.x.x) was major, a minor release (x.1.x) was minor, and a patch release was just a small patch. You could evaluate a given piece of software by name + version, and get a feeling for how far away version 2.0.1 was from version 2.8.0.

But Semantic Versioning (henceforth, SemVer), as specified at http://semver.org/, changes this to prioritize a mechanistic understanding of a codebase over a human one. Any "breaking" change to the software must be accompanied with a new major version number. It's alright for robots, but bad for us.

SemVer tries to compress a huge amount of information — the nature of the change, the percentage of users that wil

daveray

; A REPL-based, annotated Seesaw tutorial
; Please visit https://github.com/daveray/seesaw for more info
;
; This is a very basic intro to Seesaw, a Clojure UI toolkit. It covers
; Seesaw's basic features and philosophy, but only scratches the surface
; of what's available. It only assumes knowledge of Clojure. No Swing or
; Java experience is needed.
;
; This material was first presented in a talk at @CraftsmanGuild in
; Ann Arbor, MI.