ghoseb

;;
;; NS CHEATSHEET
;;
;; * :require makes functions available with a namespace prefix
;;  and optionally can refer functions to the current ns.
;;
;; * :import refers Java classes to the current namespace.
;;
;; * :refer-clojure affects availability of built-in (clojure.core)
;;   functions.

caarlos0

#!/bin/bash
#
# login in the jenkins server with:
#
# heroku login
# heroku keys:add
#
# Doing so, jenkins will have permission to deploy to
# the heroku remote.
#

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

fancellu

// Coproduct is extension of Either concept, to N multually exlusive choices

type ISB = Int :+: String :+: Boolean :+: CNil

val isb = Coproduct[ISB]("foo")                   //> isb  : qaaz.ISB = foo

isb.select[Int]                                   //> res0: Option[Int] = None

isb.select[String]                                //> res1: Option[String] = Some(foo)

jrudolph

package akka.http.scaladsl

import java.io.File

import akka.http.scaladsl.unmarshalling.Unmarshal
import akka.util.ByteString

import scala.concurrent.duration._

import akka.actor.ActorSystem

CMCDragonkai

Numeric Typeclasses - How numbers work!

Numbers in Haskell are typed of course. They also exist as instances of a numeric typeclass hierarchy. I was confused with converting and working with numbers of different types, and not being sure which functions were polymorphic and could work with different numeric types. So I created a little diagram. Do note that the typeclass hierarchy of Haskell actually does somewhat follow the hierarchy of numbers in Math.

bishboria

These links no longer work. Springer have pulled the free plug.

Graduate texts in mathematics

duplicates = multiple editions

A Classical Introduction to Modern Number Theory, Kenneth Ireland Michael Rosen

A Classical Introduction to Modern Number Theory, Kenneth Ireland Michael Rosen

timothyklim

package utils

import akka.stream._
import akka.stream.scaladsl._
import akka.stream.stage._
import akka.util.{ByteString, ByteStringBuilder}
import scala.annotation.tailrec
import java.security.SecureRandom
import java.security.{Key, KeyFactory, PublicKey, PrivateKey}
import java.security.spec.{PKCS8EncodedKeySpec, X509EncodedKeySpec}

wogan

package retry

import scala.concurrent.duration.{Duration, FiniteDuration}
import scala.util.Random

import scala.concurrent.duration._

object Backoff {

  val none: Backoff = _ => Duration.Zero

jdegoes

package fpmax

import scala.util.Try
import scala.io.StdIn.readLine

object App0 {
  def main: Unit = {
    println("What is your name?")

    val name = readLine()