The best lambda expression I ever saw

[Thomas Daniels]

var someVar = someList.SelectMany(λ => λ);

In some cases, my signature will be longer than my message...

<em style="color:red"> <b>ProgramFOX</b></em>

ProgramFOX

[Brisingr Aerowing]

:laugh: And the best part is that actually works!

Bob Dole

The internet is a great way to get on the net.

:doh: 2.0.82.7292 SP6a

[joe_j]

does that even work?

[Robert Rohde]

Well that makes sense if someList is a list of objects which implement IEnumerable (like List<List<int>>. A bit weird but no horror.

[Thomas Daniels]

Yes.

In some cases, my signature will be longer than my message...

<em style="color:red"> <b>ProgramFOX</b></em>

ProgramFOX

[Brisingr Aerowing]

Which is why this forum is called "The Weird and The Wonderful"!!

Bob Dole

The internet is a great way to get on the net.

:doh: 2.0.82.7292 SP6a

[Remi BOURGAREL]

It's not even weird, if you want to flat a list of lists then that's the best way to do it.

[SortaCore]

I think one posted in the chatroom a coupla days ago had C++11...

[](){[](){}();}();

... but I suspect he was trolling.

[peterchen]

The great thing about C++ is: you can never be sure.

ORDER BY what user wants

[RafagaX]

:omg:

CEO at: - Rafaga Systems - Para Facturas - Modern Components for the moment...

[phwitti]

xD .. If i'm not mistaken, that is just an empty lambda nested inside another one ... I wonder if one could go on and on like that. -- But in the end it would do nothing (besides probably a stack overflow, if you take it too far^^)

[Gates VP]

I think I have to classify this as "wonderful", because it's honestly pretty common. The simplest case of SelectMany is to flatten a "List of List of Objects" into a "List of Objects". And that's exactly what this lambda does. I guess the "weird" here is that SelectMany is doing some extra magic merging the lists.

[Brisingr Aerowing]

As well as the actual lambda Greek letter.

Bob Dole

The internet is a great way to get on the net.

:doh: 2.0.82.7292 SP6a