In a directory i do
Get-Item *.txt
When there is one .txt file inside the directory it returns a System.IO.FileSystemInfo
When there are more .txt files it returns a System.Array
What is the best way to handle this inconsistency? I.e. how do i find out if the function returned an object or an array. Or even better, is there a way that Get-Item always returns an array?
I want to pass the result into an other function. This function expects an array of System.IO.FileSystemInfo objects.
You can force an array to always return:
@(Get-Item *.txt)
ForEach-ObjectGet-Item *.txt | ForEach-Object {
# Do stuff
$_ # this represents the "current" object
}
One way to insure the result will always be an array is to wrap the expression in @():
@(Get-Item *.txt)
Alternately, if you are holding the result in a variable for use later, just specify an [array]
[array]$list = Get-Item *.txt
This is useful if you want (eg) $list.count which only works with an array. Otherwise you end up with code like:
if ( $result -eq $null) {
$count = 0
} elseif ($list -isnot [array]) {
$count = 1
} else {
$count = $result.count
}
