Software Engineering on Minko Gechev's blog

Design Patterns in Open Source Projects - Part II

Sun, 24 Jan 2021 00:00:00 +0000

This blog post introduces another design pattern into the context of ngrev. If you’re not yet familiar with the project, I’d strongly recommend taking 2 minutes to the introduction and “Project Overview” sections in the first part of the series.

If you did not take the time, ngrev is an Electron app that visualizes the structure of an Angular app, showing the relationships between components, modules, and providers. The UI retrieves the data for each view using an instance of a state object. You can read more about the state pattern and its application in ngrev here.

Design Patterns in Open Source Projects - Part I

Mon, 18 Jan 2021 00:00:00 +0000

I see two common frustrations around design patterns:

It’s easy to memorize patterns but hard to figure out where and how to use them
OOP is lame, and design patterns suck

If the second bullet point resonates with you, this blog post is probably not a good use of your time.

Now let’s focus on the first point. It’s not easy to understand design patterns just by reading the gang of four book or dummy examples on Wikipedia. That’s why I want to share a couple of real-world applications in open source projects that you can see and run yourself.