Yehonathan Sharvit

Developer.
Addicted to simplicity.
Author of Data-Oriented programming book by Manning 👉

[Yehonathan Sharvit @viebel]

The official final version of the book "Data-Oriented Programming" has been released 🥳 (after 18 months of early access program).

Discount code: sharvit39
https://t.co/R6lJxN3meo

[Yehonathan Sharvit @viebel]

Long life to Data-oriented programming!

[Jirka @jiriknesl]

As soon as you get deep into using static types to model your domain, you run into the problem that types don't represent reality.

You have a type Dog
You have a type Robot.
Robot has a Camera.

But then, the customer gets an idea to attach that fricking GoPro Hero on a Dog.

Suddenly, a Dog has a Camera.

But just this one Dog. But in your type system, you need to recognize that for the whole type.

Dog is Camera-attachable (implements an interface) and has a Camera attribute.

Then, you will not believe it, someone gets an idea to attach the camera on a Donkey.

Donkey has a Camera.

So do you keep that attribute .camera only on Dog and Donkey classes, or will you attribute it to all Animal classes?

Then, that customer gets an idea to put the camera on the Chimney.

So now, Chimney has a Camera. Dog and Donkey used to have it, they don't now. .camera attribute is null. But you keep supporting it, because it is possible.

But then the customer starts speaking about putting the camera on the Ladder.

Heck, so I guess, I have to make generic Object to implement CameraAttachable. All objects will have to implement it.

Then, you will not believe me, the customer buys the second camera. He attaches both cameras on a Horse.

Do you have attributes camera1 and camera2, or will you define a Camera[] cameras attribute?

--

Then, the customer stops buying and moving cameras. Finally!

So you build your app.

Your datamodel depends on all those animals, house and objects on or around the house, and those two cameras.

--

Then, you will not believe me this time.

The customer moves to a completely new house. This time, instead of animals, he loves old cars.

He might be attaching Cameras to those cars. But he will also be adding Lights, and Stickers.

The new house doesn't have a Ladder. But it has two Chimney.

You got 2 weeks to rewrite your software for this new reality.

--

Is it a problem? Yes!

It is a problem of the customer? Nope.

It's a problem of how difficult it is to capture reality and its shape. The more you are invested in Domain modelling, Typing (no anemic types and models), exactness of all that, the harder it is to change it.

And one thing I have learned is: Every successful system evolves, because its underlying reality changes. Forever!

[Yehonathan Sharvit @viebel]

@NouvelArno bonjour. Je cherche à contacter Vincent Duceau au sujet de son film sur le concert de Koln

[Yehonathan Sharvit @viebel]

@elie_elbaz bonjour. Je cherche a joindre Vincent Duceau pour lui parler de son film sur le concert de Köln

[FRESHCODE @FreshCode1]

🤔 In this brutally honest episode, @viebel shares real stories – from migration debates and hiring struggles to debugging nightmares that only #Clojure (and some #JVM magic) can deliver.

🎙️ Watch the full episode – it gets real: https://t.co/srkgUJm46X

[Yehonathan Sharvit @viebel]

@alexdreptu Absolutely!
JavaScript is also not too bad for that purpose

[Yehonathan Sharvit @viebel]

@android4n00bs Do you mean DOP as in my book?

[Yehonathan Sharvit @viebel]

@UMichOnline @umsi How does it relate to data oriented programming?

[Yehonathan Sharvit @viebel]

@cgrand What's your secret?

[FRESHCODE @FreshCode1]

Join the 6th episode of our podcast as Yehonathan Sharvit (@viebel), author of "Data-Oriented Programming," shares how CyCognito uses Clojure to tackle cybersecurity challenges: https://t.co/srkgUJmBWv

[Yehonathan Sharvit @viebel]

@bdangouleme @CastermanBD Émile Parisien, mais quel bonheur !

[Yehonathan Sharvit @viebel]

@bdangouleme Y aura-t-il également comme l'année dernières des rencontres avec des auteurs de BD ?

[Yehonathan Sharvit @viebel]

@bdangouleme @webtoonfrance @unfins @Kenji_Toon Faut il s'inscrire pour un rdv perso ?

[Yehonathan Sharvit @viebel]

@juanantoniobm @simas_ch What do you mean?

[Yehonathan Sharvit @viebel]

@Rafa_Schwinger https://t.co/bk10r4x6Js

[Yehonathan Sharvit @viebel]

@IsaiahKelly Have you read https://t.co/bk10r4x6Js?

[Yehonathan Sharvit @viebel]

@simas_ch @juanantoniobm Appendix B in https://t.co/bk10r4x6Js addresses this question

[Yehonathan Sharvit @viebel]

@VinceBrunner Évidemment. Et puis après on s'en fout puisqu'on ne sera plus là !

[Yehonathan Sharvit @viebel]

@reticularite @iiij_ppa @cleclerc97 Tout à fait d'accord !

[Yehonathan Sharvit @viebel]

@bdangouleme y aura-t-il un concert dessiné cette année lors du festival d'Angoulême ?