Yet another use case for type classes in the UI: ...

# arrow

[snrostov]

Yet another use case for type classes in the UI:

// in existed module
data class User(val name: String)

// in other module
object UserRenderer: Renderer<User> {
    fun User.render() = Row {
        +Column { +"Name: " }
        +Column { +name }        
    }
}

fun someOtherComponent(user: User)
  = Row { +user }

[elizarov]

HKT? Where?

[snrostov]

Renderer here is higer kinded type

[elizarov]

How come? It is just a generic type…

[snrostov]

oh, sorry. I mean type class

[snrostov]

fixed