PowerShell converts values returned from function. How to avoid this?

Question

I am trying to return List< T> from PowerShell function, but get one of:

1. null - for empty list
2. System.Int32 - for list with one element
3. Sy

Answer 1

If you need to return a list of ints, use jachymko's solution.

Otherwise, if you do not particularly care whether what you get is a list or array, but just want to iterate through result, you can wrap result in @() while enumerating, e.g.

$fooList = CreateClrList
foreach ($foo in @($fooList))
{
    ...
}

That would cause @($fooList) to be of array type - either an empty array, array with one element or array with multiple elements.