New Book: The Art of Electronics 3rd Edition | In The Lab With Jay Jay

This post is part of my video blog: In The Lab With Jay Jay.

Silly Job Title: Charge Charmer

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This video is part of the New Book feature of my video blog.

In this video I review the venerable The Art of Electronics 3rd Edition. It’s a long video, because this is a long book!

While I was writing up these notes for the video I found a wealth of fun stuff. Here are a few links:

Dependency Injection in MediaWiki

Today I read the documentation for how Dependency Injection is done in MediaWiki.

I had a few small nits to pick (such as their statement that services should be stateless) but… fair enough.

For myself I don’t usually use Dependency Injection and a Service Container, instead I prefer the Service Locator pattern which I find is simpler and more economical to use, especially in PHP where there is a single process per request.

Extreme late binding

There’s a famous quote from Alan Kay that you will see bandied about:

OOP to me means only messaging, local retention and protection and hiding of state-process, and extreme late-binding of all things.

I think I agree with him, but I often find myself wondering quite what he meant by “extreme late-binding”. I suspect he means that object instances can redefine stuff they inherited from their concrete class. If your OOP platform doesn’t support that, you can emulate it with data and API.