leedm777

// You've gotta start somewhere
import akka.dispatch.Future
implicit val system = akka.actor.ActorSystem("MySystem")

// lame
val WHY_YOU_TAKE_SO_LONG: Seq[Kitten] =
  grep(theWorld, kittens)

// awesome
val allKittens: Future[Seq[Kitten]] =

leedm777

/** tap implementation for C++11 */
template<typename T, typename F>
T tap(T &&obj, F const &fn) {
    fn(obj);
    return obj;
}

// usage
tap(new User(params), [](User *u) {
    if (u->isValid()) {

leedm777

val fib: Stream[BigInt] = {
  def nextFib(a: BigInt, b: BigInt): Stream[BigInt] = {
    Stream.cons(a + b, nextFib(b, a + b))
  }
  Stream.cons(0, Stream.cons(1, nextFib(0, 1)))
}

leedm777

object ZzubZzif {
  val fizzbuzz: PartialFunction[Int, String] = {
    case x if x % 15 == 0 => "fizzbuzz"
    case x if x % 5 == 0 => "buzz"
    case x if x % 3 == 0 => "fizz"
  }

  // I'm actually embarrassed that this is the best I can do
  def zzubzzif(seq: Seq[String]): Seq[Int] = {
    val fizzbuzzIndexed = new PartialFunction[(Int, Int), (String, Int)] {

leedm777

#!/bin/bash

#
# Runs a program, stripping ANSI color codes from stdout and stderr
#

# detect which sed to use
if test -z ${SED}; then
  if cat /dev/null | sed -r '' 2> /dev/null ; then
      SED=sed

leedm777

//create a map
val cars = Map("james" -> "BMW", "ike" -> "Infiniti", "stephen" -> "Buick")

//create a map from an Array
//Scala does not provide a convenience method to do this... :(
val carArray = Array("james", "BMW", "ike", "Infiniti", "stephen", "Buick")
val cars = carArray.grouped(2).toList.map(c => (c.head,c.last)).toMap

//mapping over a map
//transform all string keys to symbols (interned strings)

leedm777

trait Searchable {
  def search(query: SearchQuery): Seq[SearchResults]
}

trait PaginationWithNominalType {
  this: Searchable =>
  def page(query: SearchQuery, pageSize: Int, pageNum: Int) = {
    search(query).grouped(pageSize).toList(pageNum)
  }
}

leedm777

#include <stdio.h>

int main() {
    printf("Goodbye, dmr.\n");
    return 0;
}

leedm777

// FizzBuzz in Scala
// http://www.codinghorror.com/blog/2007/02/why-cant-programmers-program.html
1 to 100 map {
  case x if x % 15 == 0 => "FizzBuzz"
  case x if x % 3 == 0 => "Fizz"
  case x if x % 5 == 0 => "Buzz"
  case x => x
} foreach (println _)

leedm777

#!/bin/bash

#
# Copyright 2010 David M. Lee, II <[email protected]>
#
# This git update hook compares the author emails from commits with a
# whitelist stored in ${GIT_DIR}/author-whitelist.  If any commit has an
# author that is not whitelisted, the offending author's email is displayed
# then the update is rejected.
#