How can I `render` a class component without `RBuilder`? This is what I'm trying to migrate: ```fun ...

# react

[mkosm]

How can I render a class component without RBuilder? This is what I'm trying to migrate:

fun main() {
    render(document.getElementById("root")) {
        child(App::class) {}
    }
}

[Sean Proctor]

Good question. I still haven't figured out how to use Components since 282. The easiest way to change App to a functional component.

val App = FC<Props> {
    // Body from old render method here
}
fun main() {
    render(App.create(), document.getElementById("root"))
}

[mkosm]

Unfortunately that would be a rather big change for me, so I'd prefer to avoid that 😛

[mkosm]

I tried this (after making my App class implement ComponentClass<Props>):

val container = document.getElementById("root") ?: error("Couldn't find root container!")
render(createElement(App(), jso {  }, null), container)

but I get this exception:

Warning: React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: object.

[mkosm]

oh well, it was worth a try

[turansky]

For class component:

fun main() {
    render(
        App::class.react.create(),
   document.getElementById("root"),
    )
}

[mkosm]

thank you once again! 👍