Higher order functions, what are they?

In mathematics and computer science, a higher-order function (also functional, functional form or functor; not to be confused with the functor concept in category theory) is a function that does at least one of the following:

C# yield return and Scala Continuations

The Scala Collection API and the .NET Collection API are very similar as we could observe in my previous post, yet C# has some constructs that Scala lacks of. However, in Scala we can implement the same features but just in a different way. Let’s take a look…

Scala - programming scaled up

After spending 2 years at university where I had to use Java 7 for most of my coursework, I came to the (wrong) conclusion that safe code has to be boring and needlessly verbose.

Tail Recursion: 101

Factorial is 1 2 6 24 120……

Mathematical recursive function for the above is fact(n) = n * fact(n-1)

Doing this manually for large numbers will take a lot of time. So let’s write a computer program to make a computer do the manual work.

Demystifying the Monad in Scala

What are monads and how to use them in Scala

In my previous post I mentioned how I decided to write about variance despite (actually, because of) the fact that there are already several dozen articles about the topic…

Per tutto il tempo che possiamo concederci

Quello che vedo è un mondo a parte, un altro universo, una differente realtà. Inizio osservando il cielo che è talmente blu da sembrare un oceano. All'improvviso viene solcato da nuvole, simili alle bianche vele di galeoni e vascelli che si infrangono…