Like js "delete"

# javascript

[lewik]

Like js "delete"

[Tristan Caron]

what you want to do exactly?

[lewik]

free memory
In chrome heap snapshot I can find object, should not be there

[Tristan Caron]

Weird, you are sure about it, that you have no references about it somewhere ?

[lewik]

Idk, how I can detect them?

[lewik]

All code is in the functions, no globals

[lewik]

I can't imagine where I could leave cross links

[Tristan Caron]

What is the object that should not be here?

[lewik]

My custom packets.
I receive packets from server, deserialize them and get some packet, then I use packet load (entities, store them in app) and after that packet should be deleted from memory.

[lewik]

But I see a lot of them in heap @Tristan Caron

[Tristan Caron]

Even when you force the garbage collector?

[lewik]

How?

[Tristan Caron]

If you use chrome, in DevTools, tab memory, you have a trash icon in the left corner. For others, I do not know.

[anton.bannykh]

@lewik There is an old answer on Stackoverflow: https://stackoverflow.com/questions/28401523/how-do-you-call-javascript-delete-from-kotlin

Since then keyword native was replaced with `external`:

external fun delete(p: dynamic): Boolean

fun delete(thing: dynamic, key: String) {
  delete(thing[key])
}

fun String.deleteFrom(d: dynamic) {
  delete(d[this])
}

fun test(a: Any, k: String) {
    delete(a, k)
    k.deleteFrom(a)
}