lucamolteni

module Simpson where 

data Value = Value
    { minRange :: Double
    , maxRange :: Double
    , dof :: Int
    , expectedValue :: Double
    } deriving (Eq)

type Error = Double

lucamolteni

package it.lm;

public class Main {

    public static void main(String[] args) {
        B b = new B();
        A<B> a = new A<B>(b);

        C<A<B>> c = new C<A<B>>(a);
    }

lucamolteni

public class CategoryTheory {

    public static <T> Function<T, T> id() {
        return new Function<T, T>() {
            @Override
            public T apply(T arg) {
                return arg;
            }
        };
    }

lucamolteni

public class CategoryTheory {

    public static <T> Function<T, T> id() {
        return new Function<T, T>() {
            @Override
            public T apply(T arg) {
                return arg;
            }
        };
    }

lucamolteni

http://www.codewars.com/kata/51c8991dee245d7ddf00000e/solutions/javascript

"Complete the solution so that it reverses all of the words within the string passed in."

function reverseWords(str){
  //split it into words, store in array
  var words = str.split(" ")
  var output = "";
  //reverse the array and concat each word with space
  for(var i = words.length-1; i >= 0; i--){

lucamolteni

Exception in thread "main" java.lang.VerifyError: Bad local variable type
Exception Details:
  Location:
    Prova$.main([Ljava/lang/String;)V @0: aload_2
  Reason:
    Type top (current frame, locals[2]) is not assignable to reference type
  Current Frame:
    bci: @0
    flags: { }
    locals: { 'Prova$', '[Ljava/lang/String;' }

lucamolteni

[17:06:42] volothamp:	simple question: why does this expression evalute to null?
[17:06:44] volothamp:	scala> val x: Integer = if (0 != 1) x else 42
[17:06:44] volothamp:	x: Integer = null
[17:06:58] darkfrog:	hehe
[17:07:14] darkfrog:	volothamp: you're declaring x and assigning it x dude
[17:07:59] darkfrog:	volothamp: I have no idea what you're trying to do, but you're doing it wrong. :-p
[17:08:10] volothamp:	darkfrog: it's an edge case :p
[17:08:17] arjen-jonathan:	I think that the compiler is telling you:
[17:08:30] darkfrog:	volothamp: it's not an edge case, it's bad code
[17:08:44] 	TKH (~TKH@p1139-ipbf1009souka.saitama.ocn.ne.jp) joined the channel

lucamolteni

Try(jsValue.as[T]).getOrElse(throw BadRequestException("invalid.json")

lucamolteni

Try(jsValue.as[T]).getOrElse(throw BadRequestException("invalid.json")

lucamolteni

case class User(name: String, homepageUrl: Option[String]) 
 
case class UserProfile(userName: String, profile: String) 
 
def findUser = Future.successful(User("Bob", Some("http://bob.com"))) 
 
def downloadProfile(url: String): Future[String] = Future.successful("Profile from the interwebs...") 
 
def profile(user: User): Future[Iterable[String]] = Future.sequence(user.homepageUrl.map(downloadProfile))