Sometimes you would like to define a method which takes an optional argument, but the programmer might pass nil. And your code needs to distinguish between the value not being provided (default value) and nil. How can it be achieved? The usual solution for default value is to define them…

Around a month ago, I worked on a task, which required a more dynamic frontend behavior. I worked on a component with 2 selects and 2 date pickers and depending on what was selected where the other pickers or select inputs had to be updated based on some relatively simple…

If you have low self-esteem and constantly worry (like I do), your own thoughts might be the biggest obstacle preventing you from getting great things done. Here are 4 mental tips that I use to overcome my objections. Start enough times Don’t think about finishing a project. About the end of it. You…

Last week I added a final chapter about Event Sourcing to Domain-Driven Rails. It presents how you can build your aggregates using Rails Event Store with SQL DBs. It also shows how to achieve the same with EventStore.org DB. A dedicated database for storing events. …

As developers there are a few things we can do with our time: code and ship it learn new tools and techniques show your current knowledge and expertise and there is always the 4th option. …

A few years ago I started blogging and I try to keep doing it weekly or bi-weekly. Why? What’s the point? Why spend time on this? What do you gain? Spread your way of coding — inspire Everyone of us has its own taste and list of acceptable hacks. By blogging, I make sure that in Arkency…

Today I was listening to DevTalk.pl podcast and its 1st episode of DevTrio talks. In this episode, 3 famous Polish developers discuss the topic of whether you would want to and whether you could be a programmer for your whole career. In the rest of the world, the answer was…

I just came from my 2 week-long vacations and here is my quick summary. At age 32 you just can’t handle same shit you did 10 years ago. Planning time for rest is nowadays essential for me and my wife (same age). Otherwise, I just become a whining, tired, unhappy…

RubyMine (and probably many other editors as well) have a nice feature called bookmarks. It lets you mark certain lines and easily navigate to them. I wanted to present you two scenarios in which I use the feature. Editing big test/spec file Let’s say I am in a quite long spec file. Quite long…