Code is a cost and has a negative value, yes I said it finally. “Most startups die because they build the wrong product. The core risks are rarely technical; if no one wants the product, building it well won’t change the outcome.” - Zach Tellman In 2013, I went to the 2nd edition of DevDay. This was my first conference ever in the different city. It was a blast. The team behind it recently started a new event - DevConf - knowing Rafal and Michal it will be great, check it out. In 2013, I remembered on...

Interesting code review of less complex code. With some surprising and less surprising tips.

Finałowy wpis z cyklu o protokole Bitcoina przedstawiający jak napisać od podstaw własną aplikację, która opublikuje transakcję w sieci.

In my previous post I wrote about my problem with "empty" projects and Roslyn. The symptom was that in some cases according to Roslyn my C# projects didn't contain any files. For quite a long time, I haven't been able to find a solution. Especially because I couldn't reproduce problem on my local machine. Fortunately, today I noticed exactly the same problem on another computer.

Cleaner constructors with throw expressions in C# 7Posted by Lazy

Miłosz Piechocki This post is another attempt on explaining the M word in an approachable way. This explanation will best suite C# developers who are familiar with LINQ and query expressions. However, if you are not familiar with C# but would like to learn how powerful and expressive some of its features are, please read on!Recap of LINQ and query expressions LINQ is a technology introduced in C# 3.0 and .NET 3.5. One of its major applications is processing collections in an elegant, declarative way. ...

Zaczynam nową serię wpisów – tym razem będzie o wzorcach projektowych. Na pierwszy ogień wezmę jeden z tych, których nie wiedzieć dlaczego, trudno mi było zrozumieć, ale jak już zrozumiałem, to nie wyobrażam sobie koderki z bez wzorca Constructor Dependency Injection.

LINQ jest świetnym mechanizmem transformacji danych, ale brakuje w nim kilku operacji, które możemy znaleźć w F#.

Have you ever heard or used AutoMapper? What a question, of course you have. And in the very unlikely scenario that you haven't, it's the object to object mapper that allows you to map probably everything. In short no more manual, boring, tedious, error-prone mapping. However, the great power comes with great responsibility. In the recent time, I had an occasion to fix 2 difficult to track bugs related to improper usage of AutoMapper. Both issues were related to the feature of AutoMapper...

Kilka analogii pomiędzy tym, co znamy ze szkoły, a tym, co możemy zrobić w języku funkcyjnym (na przykładzie F#).