Una semplice guida per procurarsi i documenti necessari per entrare in Canada: quando serve il visto turistico, quando invece è sufficiente l’Electronic Travel Authorization e come ottenerlo. — Se siete diretti in Canada per trascorrere la vostra vacanza avete bisogno di alcuni documenti che vi consentiranno di passare i controlli doganali e quindi di entrare in Canada. …

My app had no bad symptoms, who knew that it was hiding a secret issue? In this post I show you how I dug into the running application and why you should use the same process to look for issues in your app. — A little truth that not everybody knows is that you’re unlikely to know what happens in your application until you actually look at your application while it is running. …

I struggled for some time around the end-to-end testing setup in my React-Redux app. I came out with some ideas and a workflow that I would like to share. Here is how it works. — As developers we only have one way to be certain that our code works, we test it. Since it’s very likely that we will make mistakes, testing comes in our help to ensure that we do not end up pushing a broken application in the hand of our users.

More than one year ago we started a new project: a universal SPA based on React and Redux. One of the first choices to make was: “how do we handle stylesheets?”. We gave a chance to JSS. 60+ components later, it has been the best experience we had with stylesheets so far. Here are some technical solutions we adopted and the overall feedback. — I was initially skeptic about the CSS-in-JS solutions that were recently gaining popularity. Probably I was overestimating the benefits of working with a toolset that I already knew, SASS, compared to the many benefits JSS brings to a React project. …

Clojurescript is a compiler for Clojure that targets Javascript. Using Clojurescript you can write your Javascript app in Clojure, taking advantage from functional programming paradigms, for example immutable data structures, on top of the excellent Google Closure Tools library that powers many Google products. — I decided to leave Medium and move my articles to my personal blog. You can read the rest of this article here.

In every object oriented programming language we model the domain with classes. Every object we generate from our classes is a container of state, represented by your instance variables, and behavior, represented by your methods. But Elixir is a functional programming language therefore it doesn’t have classes. It also doesn’t allow you to store state in objects. But of course it allows the definition of behavior, using functions.

If you come from object-oriented programming, one of the weird things about Elixir and other functional programming languages is for sure immutability. In many of those, we are allowed to assign a value to a variable and then change it during the execution of a program. I decided to leave Medium and move my articles to my personal blog. You can read the rest of this article here.