What would happen if js function add or pop array?

[Thaina]

In the document it was state that js array will convert to C# array directly

But sometimes, function that was taken array in javascript can mutate array and resize it by add/pop/splice etc. And so I don't think the array could be mutated as expect like that

Javascript array is more equivalence to List in C#, not array, so I think we should use List or IList to map with it