Hello, how can i use the

renderProperty

, to change the value of textField? When I try, I get:

Hey. I’m not at a computer to check, but I think the issue is the property needs to be a member of a

View

class. You’re defining this as a local member. Try moving the declaration out of init:

val view = object: View() {
    var time by renderProperty(initial: "")

    init {
    }
}

So how does it know when to rerender?

renderProperty is just an

observable

that calls rerender whenever it is changed. it then calls the block you pass to it to let you do more stuff.

observable

calls it’s callback whenever you set a new value that isn’t equal to the current one. So

renderProperty

is like doing:

object: View() {
    var property by observable(initial) { old,new ->
        rerender()
        …
    }
}

This works because

observable

will call the block whenever

property

is changed