really simple question Trying to create a java object that r kotlinlang #getting-started

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Wesley Acheson

09/03/2020, 11:54 AM

really simple question. Trying to create a java object that requires setters to be called. Is this the right pattern to use or not

val jsonHeader = HttpHeaders().let {
        it.accept = listOf(MediaType.APPLICATION_JSON)
        it
    }

Tobias Berger

09/03/2020, 12:00 PM

Possible, but you should probalby go for

val jsonHeader = HttpHeaders().apply {
    accept = listOf(MediaType.APPLICATION_JSON)
}

➕ 1

👍 3

Wesley Acheson

09/03/2020, 12:00 PM

Nice. Thanks

That also cleans up some when blocks I had so thats a bonus.

frogger

09/03/2020, 12:26 PM

real kotlin programmers just try let/accept/also/… until it works

😁 1

:trollface: 2

Tobias Berger

09/03/2020, 12:51 PM

or until this works 😉

😂 2

Cyril Truchi

09/03/2020, 12:53 PM

This saved my life : https://proandroiddev.com/the-difference-between-kotlins-functions-let-apply-with-run-and-else-ca51a4c696b8 🙂

Especially the table in the end

Tobias Berger

09/03/2020, 12:53 PM

seriously though: let/also/apply/run can be really useful. Don't guess, learn what they do and use the one you think is most apropriate for your code

Wesley Acheson

09/03/2020, 12:54 PM

I've mostly just been writing java like code. I guess.

Tobias Berger

09/03/2020, 12:58 PM

@Cyril Truchi I actually prefer the official documentation: https://kotlinlang.org/docs/reference/scope-functions.html which got a lot better since that article was written

@Wesley Acheson I'm sure you'll get into the kotlin style. Trust me, you will not want to go back to java once you got used to writing kotlin - even if it's just about all the

Wesley Acheson

09/03/2020, 1:01 PM

No I don't want to go back. I've had groovy people claim that.

I've had scala people claim that. (and nearly believed them)

🙂 1

Cyril Truchi

09/03/2020, 1:02 PM

@Tobias Berger Oh you're right, thanks

Wesley Acheson

09/03/2020, 1:02 PM

I would like scala but not with the other people I work with.

➕ 1

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