Anyone else trying to keep up with all the newish .NET stuff?

[DimPrawn]

Reactive Extensions for .NET (Rx) for example.

 //Create an observable with the initial position and dragged points using LINQ to Events
   var mouseDragPoints = from md in e.GetMouseDown()
                           let startpos=md.EventArgs.GetPosition(e)
                           from mm in e.GetMouseMove().Until(e.GetMouseUp())
                           select new
                           {
                             StartPos = startpos,
                             CurrentPos = mm.EventArgs.GetPosition(e),
                           };

Rather than attaching even delegates and writing even handlers.

PLINQ and Parallel

This gem?

public static List<R> Filtering<T,R>(IEnumerable<T>
source)
{
var results = new List<R>();
using (SemaphoreSlim sem = new SemaphoreSlim(1))
{
Parallel.ForEach(source,
() => new List<R>(),
(element, loopstate, localStorage) =>
{
bool filter = filterFunction(element);
if (filter)
localStorage.Add(element);
return localStorage;
},
(finalStorage) =>
{
lock(myLock)
{
results.AddRange(finalStorage)
};
});
}
return results;
}

Or this PLINQ style code?

public static IEnumerable<T> Zipping<T>(IEnumerable<T> a, IEnumerable<T> b)
{
return
a
.AsParallel()
.AsOrdered()
.Select(element => ExpensiveComputation(element))
.Zip(
b
.AsParallel()
.AsOrdered()
.Select(element => DifferentExpensiveComputation(element)),
(a_element, b_element) => Combine(a_element,b_element));
}

I remember when it all looked so obvious. Sort of VB on steroids...

[eek]

That's getting into the showing off in Perl department.

Yes you can write the entire program in a single line of code personally I would prefer 100 lines with documentation and notes and I'm paying your wages.

[d000hg]

I don't think you are, he's a contractor.

[DimPrawn]

I'm not writing stuff like this, I'm reading stuff like this and thinking "Do we really need all this syntactic fluff?"

Perhaps we do. Perhaps I'm just getting old and grumpy....

[eek]

I don't think you are, he's a contractor.

I was talking about an equivalent perl program from years back being written at the software house I owned back in the late 90s

When it comes to code I have a simple rule, readable and maintainable. Fancy short cuts take a back seat because when it goes wrong I want to be able to identify the fault, understand it and fix it in a hurry.

[doodab]

};
});
}

is an abomination. That should just never be allowed to happen. Perhaps some indenting would help.

[d000hg]

I was talking about an equivalent perl program from years back being written at the software house I owned back in the late 90s

When it comes to code I have a simple rule, readable and maintainable. Fancy short cuts take a back seat because when it goes wrong I want to be able to identify the fault, understand it and fix it in a hurry.

But what you consider a fancy short cut someone else might consider readable. I find this with C++ templates; to me it's hard to figure out as I learned templates as a useful language feature while those who learned to program using templates as a core programming paradigm see it very clearly.

[TheDude]

But what you consider a fancy short cut someone else might consider readable. I find this with C++ templates; to me it's hard to figure out as I learned templates as a useful language feature while those who learned to program using templates as a core programming paradigm see it very clearly.

Off topic Bit did you Post a lot in Topcoder back in the Day?

[VectraMan]

I can't decide if that's better or worse than C++'s hideous lambda syntax.

[DimPrawn]

I mean all the language bloat.