pluralOf - add plural 's' only if array contains more than 1 element

pluralOf.ps1

# pluralOf - add plural 's' only if array contains more than 1 element
#
# example usage:
# 
# Write-Host "Found $($computers.Count) computer$(pluralOf($computers))"
#

function pluralOf($inputObject) {
    if ($inputObject -is [System.Array] -or $inputObject -is [System.Collections.ArrayList]) {
        Write-Output "$($inputObject.Count -ne 1 ? 's' : '')"
    }
}