What is the idiomatic way to slice an array relative to both of its ends?

Question

Powershell\'s array notation has rather bizarre, albeit documented, behavior for slicing the end of arrays. This section from the official documentation sums up the bizarreness

Answer 1

$arr = @(10, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10)

$arr | Select-Object -First 5 | Select-Object -Index (@(0..4) | Where-Object { $_ % 2 -eq 0}) 
$arr | Select-Object -Last 5
$arr | Select-Object -Unique
$arr | Sort-Object | Select-Object -Unique
$arr | Where-Object {  $_ % 5 -eq 0 } | Sort-Object | Select-Object -Unique
$arr | Select-Object -First ($arr.Count - 3)

Actually code speaks for itself. I event don't need to explain.

However, 1) Provide the first five elements, but each second of those five. Equal to arr[:5:2] in Python 2) Get the last five elements. 3) Gives unique elements 4) Firstly sort and then provide unique 5) Gives only elements which equal 0 by applying modulo of 5, sort, unique. 5) Provide the first count of elements in that array minus three elements only.