Learn how to use a dynamic component by passing its name through a string prop.

This tutorial describes a TDD approach to refactor code to Strategy pattern. Starting from working code and some test, refactoring steps are applied to obtain cleaner code

My system is safe, it uses encryption. You heard/said this from time to time. Sure, but why and how is it safe? Do you really know this?

Classes with a lot of lines of code are generally bad. Too many responsibilities, low cohesion, or both. However, sometimes it is not possible to make functions smaller. Reasons could be various. What can be done in this circumstance?