Dart 3 Class Modifiers Is kinda Confusing

Struggled a bit to understand Dart 3 Class modifiers. Let's learn about them and use them.
Flutter Course: robertbrunhage.com
Want to support me?
♥ Patreon: / robertbrunhage
♥ BuyMeACoffee: buymeacoffee.com/robertbrunhage
♥ Paypal: paypal.me/robertbrunhage
····················································································
You can find me on:
● Website: robertbrunhage.com
● Twitter: / robertbrunhage
● Join our community: / discord
····················································································
😎 Subscribe: bit.ly/2SUyRhx

[@icodeyoutodeath]

This `abstract interface class` to say `interface` is such a weird thing. Wish we'd just call it an `interface` as in other languages.

[@RobertBrunhage]

Haha, please don't remind me

[@draakisback]

Yeah it's kind of verbose. Abstract classes are supposed to sort of work like interfaces and now we have this interface keyword which is basically just a class level visibility/accessibility modifier. I don't know, I suppose it's because we're working with class based programming/OOP rather than procedural or imperative. It's strange, the records and the pattern matching features were implemented in a way that's very thoughtful but these were kind of haphazard in my opinion. On the other hand, darts version of OOP is pretty straightforward so it's not a big deal, just really don't see myself using any of these keywords apart from mixin and final. Maybe though this will open the door for other modifiers like immutable or case class.

[@alexpol108]

Yes, please, highlight the new features of the Dart and Flutter, would be interesting

[@jajasaria]

always love how you explain things into simple ways. thanks for the video

[@sangamshrestha143]

Thanks for the video. I am curious to know how you use debug point with that editor.

[@RobertBrunhage]

I haven't used the debugger like that for more than 2 years so in short, I don't.
If I want to, I just use the debugger that comes with the flutter devtools

[@alexmercerind]

I'm only studying these for interview. Sealed classes are fine, but others are just overkill now imo.

[@RobertBrunhage]

Between all of these modifiers I using sealed classes 99% of the time

[@artofnessa]

Let's goooo!!!

[@Abdurrahman98XX]

May i ask if coding in command line is any better of vscode (especially you have alot of keymaps customization or vim extension) ?

[@RobertBrunhage]

I guess for me, the defining factor are these for using NeoVim in the terminal:
- More fun
- Learning more about terminal usage/commands
- Just feels more snappy
So no, you will do completely fine on a normal editor. I just wanted to learn it, and then got stuck/loved it

[@saqqara6361]

Great!!!

[@pierrejoye]

you cannot instantiate interface. Interface are implementation-less definition of an object (its methods, its interface).
I do like this short video, good summary.
I would suggest to explain the 101 concept of OO and how it was implemented in flutter as well, maybe for another video :)

[@Landon_Hughes]

I come from Swift.
I find all of this very confusing. What's the difference between a mixin and an interface?
Even the dart documentation blurs the lines for me 😅

[@1234matthewjohnson]

plz more

[@RobertBrunhage]

moooooooore

[@RAFAELAGUIAR-nt3lt]

It's cool, but I'm worried about all the bad code that this will generate, broken SOLID principles and so on. I still prefer to work with class.

[@pierrejoye]

interface is an interface. I am not sure why talking about extends etc. It is a common concept in all languages providing OO

[@RobertBrunhage]

Dart doesn't have normal interfaces as classes has implicit interfaces.
The way we create interfaces before was just defining classes that we couldn't instantiate, which still has the problem that the class could be inherited from.
Using the interface keyword makes it so the class is only being able to implement as an "interface".
Such a pain, but it is what it is.

[@silverhairs]

`abstract interface class` ??? really? wth

[@RobertBrunhage]

abstract interface base sealed class

[@gokuldas027]

@@RobertBrunhage "Stop it, Patrick! You're Scaring Him!"

[@1234matthewjohnson]

yew

[@cristianproust]

You pronounce can and can't almost the same. It becomes confusing

[@TechBuddy_]

You I didn't want this at all this just Java but worse atleast in Java you just do interface but now we say abstract interface class 🤮
Edit: base classes and sealed classes are good enough though

[@Abdurrahman98XX]

Switch to java then

[@TechBuddy_]

@@Abdurrahman98XX 😂😂 that's a fantastic response lol. But I can just ignore interfaces and just use abstract classes as I am used to.

[@baggern]

I think Dart SDK, the technical implementation is good, but my god Dart is such a badly designed language

[@mijaelviricocheaparra7474]

Why is Dart a badly designed lang?

[@ikerborja1082]

what a terrible explanation