borkdude

(ns text-xform
  (:require [clojure.java.io :as io]
            [clojure.string :as str]
            [cheshire.core :as json])
  (:import [java.io BufferedReader]))

;;;; inspired by https://tech.grammarly.com/blog/building-etl-pipelines-with-clojure

(def db (atom 0))

gititGoro

Setting up a private ethereum blockchain for development and pointing your wallet at it

Ethereum tutorials all advise downloading the Mist wallet and beginning dev. The only problem is that the testnet and real blockchain are huge and take hours to download. What follows is a recipe for quickly setting up a small blockchain and pre-mining it with some test ethereum

The following is done in Linux but will work in MacOS and should have equivalent command line options in Windows. Where I don't give detailed instructions, it's because a quick google search will fill in the blanks.

Install geth https://github.com/ethereum/go-ethereum/wiki/geth

install Mist https://github.com/ethereum/mist/releases

stuarthalloway

;; clojure.spec's missing piece, work in progress
;; this is only halfway done, somebody else will need to do the other 95%

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

(defn naive-english-explain
  "Copy and paste this into your app. Figure out what it does by
trying it in production."

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

border

#! /bin/sh

### BEGIN INIT INFO
# Provides:          IBController
# Short-Description: starts instance of IBController
# Description:       starts instance of IBController using start-stop-daemon
### END INIT INFO

############### EDIT ME ##################
# ini file

cgrand

;; the SET game in clojure.spec
;; inspired by https://github.com/jgrodziski/set-game

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

(s/def ::shape #{:oval :diamond :squiggle})
(s/def ::color #{:red :purple :green})
(s/def ::value #{1 2 3})
(s/def ::shading #{:solid :striped :outline})
(s/def ::card (s/keys :req [::shape ::color ::value ::shading]))

oakes

Contents

• Why care about Rust?
• The Toolchain
• Creating a New Project
• Modules
• Crates
• Types
• References
• Mutability

john2x

Clojure Destructuring Tutorial and Cheat Sheet

(Related blog post)

Simply put, destructuring in Clojure is a way extract values from a datastructure and bind them to symbols, without having to explicitly traverse the datstructure. It allows for elegant and concise Clojure code.

Vectors and Sequences

swannodette

(defn get-square [rows x y]
  (for [x (range x (+ x 3))
        y (range y (+ y 3))]
    (get-in rows [x y])))

(defn init [vars hints]
  (if (seq vars)
    (let [hint (first hints)]
      (all
       (if-not (zero? hint)

ymakino

signature HELPER =
sig
  val power : int * int -> int
  val apply : ('a -> 'b) * 'a -> 'b
  val id : 'a -> 'a
  val curry : ('a * 'b -> 'c) -> ('a -> 'b -> 'c)
  val uncurry : ('a -> 'b -> 'c) -> ('a * 'b -> 'c)
  val flip : ('a * 'b -> 'c) -> ('b * 'a -> 'c)
  val toBin : int -> string
  val toOct : int -> string