WIP (some content is inside)



1TODO (4 exercises)

7 exercises with solutions and explanations.

Before you start

1. We believe that a learning environment should be as realistic as possible. There are no Paste-n-Run sandboxes for coding tasks at Paqmind. You should use your own editor to write code and your own machine to run it – like a real programmer does.

2. Make sure you know the required theory, at least in the first approximation. Terms from the Curriculum should sound familiar for you. Refer to the Theory list below and always search for more. Start tomorrow (or next week) but start prepared.

3. Don't expect to pass the tutorial in one sitting. It's not a usual Easy-Level stuff made to massage your ego. We tried to make each exercise challenging, sometimes even discomfortable, yet enlightening. If you're here just to verify your knowledge, it may take a few days. But if you're new to the topic – it may easily take two weeks or more.

Refer to the How-to page for more information.


About the Author

Ivan Kleshnin
Fullstack Developer

Qualified engineer, mentor, and entrepreneur. 12+ years of experience. As an author, prefers to give universal knowledge that will remain relevant for years. Professional interests include functional and reactive programming, static types, software architecture.