by Muraad Nofal
A haskell monad/(applicative)functor like interface in C# that extends IEnumerable.
by Coral Kashri
Fold-expressions in extreme cases
by Thomas Daniels
This article explains how bitwise operators work and this article explains also several purposes of them with examples in C# and VB.NET.
by Yvan Rodrigues
Maybe writing a tip will mean the last time I fall for this.