Is it better to do `Comp[eid] = undefined` or `delete Comp[eid]` to remove component data

[lud]

Title basically.

I see the lib suggest heavily to store data in arrays, leading to a lot of empty array items for all eids that do not have a component. I guess there are optimizations around that, so I wonder if I should use delete SomeArray[eid] to remove data.

Thank you :)