Check multiple path with Test-path

Question

In my function i have 3 no mandatory and no positional parameters Folder1, Folder2 and Folder3, before running my function i would like to check for each select

Answer 1

You can pass an array to Test-Path

Test-Path c:, d:, e:
True
True
True

EDIT

So I believe from your comment that you have something like this:

$mypaths = "c:","d:",$null
Test-Path $mypaths

Which issues the following error:

Test-Path : Cannot bind argument to parameter 'Path' because it is null.

Then you can try this:

$mypaths = "c:","d:",$null
$mypaths | Foreach { if ($_){Test-Path $_}}

Which results in only two valid paths.

So you could consider checking the returned values:

$valid = $mypaths | Foreach { if ($_){Test-Path $_}}

write-host "Variable `$mypaths contains $($mypaths.count) paths, and $($valid.count) were found valid"

Which outputs:

Variable $mypaths contains 3 paths, and 2 were found valid