extension functions in Kotlin are the nicest I've ...

# announcements

[vaskir]

extension functions in Kotlin are the nicest I've seen

[radityagumay]

vaskir: yes, they is

[vaskir]

very lightweight syntax plus they can be defined locally. super nice.

[vaskir]

and implicit this 🙂

[radityagumay]

even further you can wrap Realm.transaction for extension function

[radityagumay]

i did something like this

[radityagumay]

inline fun Realm.transaction(body: Realm.() -> Unit) {
beginTransaction()
use {
body()
commitTransaction()
}
}

[vaskir]

yeah, inline functions are a bit like template functions in, say, D.

[radityagumay]

fun insert(obj: MessageObject){
val realm = Realm.getInstance()
realm.transaction {
insertOrUpdate(obj)
}
}

[radityagumay]

👍

[vaskir]

but the killer thing for me is coroutines. mind blown stuff. the best approach I've see.

[radityagumay]

Couroutine just like c# did

[vaskir]

nooo.

[radityagumay]

I have experience in that field. C# have await async

[radityagumay]

And kotlin trying to mimic that, but in different flavors

[vaskir]

in C# async/await is a lang feature, working only for asyncs. coroutines - general purpose feature, like computation expressions in F#, but integrated more seamlessly with the the rest of lang.

[radityagumay]

Yes, absolutely true

[vaskir]

and the whole story with synchronous channels are just awesome.

[radityagumay]

Yes

[radityagumay]

Python, Golang also couroutine

[vaskir]

I even wrote a small blog post on it today 🙂 https://vasily-kirichenko.github.io/fsharpblog/actors

[radityagumay]

But, kotlin couroutine much concise

[radityagumay]

Thanks for sharing

[vaskir]

🙂

[vaskir]

I've just impressed. We have such stuff in F#, but it's cryptic. Really cryptic and hard to write. Kotlin looks 10x lighter and as powerful.

[radityagumay]

Yes, kotlin is the most mature language I ever seen after C#

[radityagumay]

Anyway, kindly follow me on medium

[radityagumay]

https://medium.com/@gumay.raditya

[radityagumay]

https://id.linkedin.com/in/radityagumay