Hacker News Comments on "RailsConf 2015 - Nothing is Something" Confreaks Youtube Video

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Hacker News Comments on
RailsConf 2015 - Nothing is Something

Confreaks · Youtube · 2 HN points · 6 HN comments

HN Theater has aggregated all Hacker News stories and comments that mention Confreaks's video "RailsConf 2015 - Nothing is Something".

Youtube Summary

By, Sandi Metz
Our code is full of hidden assumptions, things that seem like nothing, secrets that we did not name and thus cannot see. These secrets represent missing concepts and this talk shows you how to expose those concepts with code that is easy to understand, change and extend. Being explicit about hidden ideas makes your code simpler, your apps clearer and your life better. Even very small ideas matter. Everything, even nothing, is something.

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http://amara.org/v/G6rJ/

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Hacker News Stories and Comments

All the comments and stories posted to Hacker News that reference this video.

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Aug 03, 2019 · jmchuster on What Is Null? (2010)

Great talk by Sandi Metz on the topic - Nothing is Something https://www.youtube.com/watch?v=OMPfEXIlTVE

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Mar 18, 2019 · profalseidol on Alan Kay on the Meaning of “Object-Oriented Programming” (2003)

Here's one talk about 'message' in Ruby:
RailsConf 2015 - Nothing is Something
https://www.youtube.com/watch?v=OMPfEXIlTVE
But to me, this simply looks like Functional Programming done in an OOP mess.

⬐ pjmlp
Smalltalk was also influenced by Lisp work being done at Xerox PARC.
Map, filter, flapmap, lambdas, symbols, are all there.
You can easily do LINQ in Smalltalk-80 without any additional library.

“Nothing is Something” – OO design talk by Sandi Metz (2015)

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Jun 10, 2017 · 2 points, 1 comments · submitted by mundo

⬐ mundo
Absolutely wonderful dissection of Null Object pattern and how dependency injection should/shouldn't be used. This is Sandi Metz (of "Practical Object Oriented Design in Ruby" fame) at RailsConf 2015 but it's not Ruby-specific. 35m.

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Jan 03, 2017 · newtscamander on Classes Considered Harmful [pdf]

The premise is the introduction is wrong.
"so before we have written a single program in our language, before we know whether shared behaviour will be important in the applications that will be written in it"
read the POODR book, or watch this
https://youtu.be/OMPfEXIlTVE?list=PL5s3t9kPeAN6aDxaSywIbeFJO...
it explains how shared behavior works without code duplication and why people tend to mess it up.

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Oct 26, 2016 · rimantas on Applying the Linus Torvalds “Good Taste” Coding Requirement

Sandi Metz has a talk where she speaks about her dislike for if https://www.youtube.com/watch?v=OMPfEXIlTVE

⬐ majewsky
Thanks for the link. I found the talk very insightful.
I would imagine Linus to disagree with Sandi's approach, though. She is never eliminating the if (as in: the conditional jump), just moving it from plain sight into the magic of dynamic method dispatch.

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Jul 17, 2016 · rimantas on Destroy All Ifs – A Perspective from Functional Programming

Sandi Metz talks about ifs a bit here: https://www.youtube.com/watch?v=OMPfEXIlTVE

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Feb 14, 2016 · buren on Write code that is easy to delete, not easy to extend

Couldn't agree more. Sandi Metz has an excellent talk touching on this topic. Developers exaggerated willingness to keep things DRY and elaborates a bit on why: it's one of the easiest things for a not-so-experienced developer to identify and one of the easiest things to teach.
Edit: One of the best quotes from that talk is (paraphrased): "The wrong abstraction is a lot more expensive than duplicated code". https://youtu.be/OMPfEXIlTVE

⬐ None
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RailsConf 2015 - Nothing is Something