``` var objectMapper ObjectMapper = val mapper = ObjectMappe kotlinlang #announcements

xenoterracide

07/01/2019, 4:45 PM

var objectMapper: ObjectMapper = {
            val mapper = ObjectMapper()
            mapper.registerModules(JavaTimeModule(), KotlinModule())
            mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS)
            mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL)
            mapper
        }

is there a way to do an initialization block kind of like this? just

init

? is there something more per property?

07/01/2019, 4:46 PM

()

to the end to execute immediately.

Pere Casafont

07/01/2019, 4:47 PM

val objectMapper: ObjectMapper = ObjectMapper().apply {
  registerModules(JavaTimeModule(), KotlinModule())
  disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS)
  setSerializationInclusion(JsonInclude.Include.NON_NULL)
        }

streetsofboston

07/01/2019, 4:47 PM

var objectMapper = ObjectMapper().apply {
            registerModules(JavaTimeModule(), KotlinModule())
            disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS)
            setSerializationInclusion(JsonInclude.Include.NON_NULL)
        }

Pere Casafont

07/01/2019, 4:47 PM

@streetsofboston 🙈

07/01/2019, 4:47 PM

☝️ That would be more idiomatic Kotlin 🙂

val

and Anton has omitted the redundant variable type. +1 for both, still a tie 😄

Pere Casafont

07/01/2019, 4:49 PM

@xenoterracide also please prefer to use

val

everywhere you can and

var

only when you really need to be able to alter its value in the future. In your use case

var

smells a bit 😉

xenoterracide

07/01/2019, 4:51 PM

@Pere Casafont yeah I am, in this case this is going in a builder so the final thing can be immutable 😉

Pere Casafont

07/01/2019, 4:51 PM

07/01/2019, 4:54 PM

The variable will be immutable, not the object it refers to 🙂

xenoterracide

07/01/2019, 4:59 PM

anyways, thanks guys