acout

Updated Setup and Usage instructions for hadoop_g5k

Sources

https://lipn.univ-paris13.fr/bigdata/index.php/How_to_use_Spark_on_Grid5000

https://github.com/mliroz/hadoop_g5k/wiki

https://github.com/mliroz/hadoop_g5k/wiki/spark_g5k

baseerhk

object RandomAccessList {
  type RandomAccessList[A] = List[(CompleteBinaryTree[A], Int)]

  def fromList[A](xs: List[A]): RandomAccessList[A] = {
    def sublists[A](xs: List[A]): List[(List[A], Int)] = {
      def inner(xs: List[A], size: Int, acc: List[(List[A], Int)]): List[(List[A], Int)] = size match {
        case 0 => acc
        case s => {
          val s_ = Math.pow(2, Math.floor(Math.log(s + 1) / Math.log(2))).toInt - 1
          inner(xs.take(s - s_), s - s_, (xs.drop(s - s_), s_)::acc)

baseerhk

sealed trait CompleteBinaryTree[A] {
  def lookup(size: Int, index: Int): A = (this, index) match {
    case (Leaf(x), 0)                        => x
    case (Leaf(_), _)                        => throw new Exception("Index is not in list.")
    case (Node(x, _, _), 0)                  => x
    case (Node(x, l, _), i) if i <= size / 2 => l.lookup(size / 2, i - 1)
    case (Node(x, _, r), i) if i > size / 2  => r.lookup(size / 2, i - 1 - size / 2)
  }
  def update(size: Int, index: Int, y: A): CompleteBinaryTree[A] = (this, index) match {
    case (Leaf(_), 0)                        => Leaf(y)

tyrcho

import util._
import dom.ext._
import scala.scalajs.concurrent.JSExecutionContext.Implicits.runNow

object ScalaJSExample extends js.JSApp{
  def main(): Unit = {
    val url =
    "http://jsonplaceholder.typicode.com/posts/1"
    val f=Ajax.get(url)
    f.onComplete{ 

jkpl

object Main extends App {
  AvoidLosingGenericType.run()
  AvoidMatchingOnGenericTypeParams.run()
  TypeableExample.run()
  TypeTagExample.run()
}

class Funky[A, B](val foo: A, val bar: B) {
  override def toString: String = s"Funky($foo, $bar)"
}

eyecatchup

git commit stats

Commands to get commit statistics for a Git repository from the command line -
using git log, git shortlog and friends.

---

odersky

/** This is in reference to @tploecat's blog http://tpolecat.github.io/2015/04/29/f-bounds.html
 *  where he compares F-bounded polymorphism and type classes for implementing "MyType".
 * 
 *  Curiously, the in my mind obvious solution is missing: Use abstract types.
 * 
 *  A lot of this material, including an argument against F-bounded for the use-case
 *  is discussed in:
 * 
 *  Kim B. Bruce, Martin Odersky, Philip Wadler:
 *  A Statically Safe Alternative to Virtual Types. ECOOP 1998: 523-549

ElectricCoffee

package your.pkg.here

import java.security.MessageDigest
import java.nio.file.{Files, Paths}

object Generator {
  implicit class Helper(val sc: StringContext) extends AnyVal {
    def md5():    String = generate("MD5", sc.parts(0))
    def sha():    String = generate("SHA", sc.parts(0))
    def sha256(): String = generate("SHA-256", sc.parts(0))

VladUreche

# Scaladoc Developer Guide
## Introduction
Scaladoc is the tool that enables developers to automatically generate documentation for their Scala (and Java) projects. It is Scala's equivalent of the widely-used Javadoc tool. This means that Javadoc (and even doxygen) users will be familiar with Scaladoc from day 1: for them, it is most beneficial to check out the Scaladoc/Javadoc comparison tables and if necessary, skim through this document to understand specific features. 

The rest of this tutorial is aimed at developers new to Scaladoc and other similar tools. It assumes a basic understanding of the Scala language, which is necessary to follow the examples given throughout the tutorial. For the user perspective on the Scaladoc-generated documentation, such as finding a class, understanding the page layout, navigating through diagrams, please refer to the Scaladoc User Guide.

The tutorial will start by a short motivation and then will explain the main concept in Scaladoc: the doc comment.

### Why document?