Passing string array to powershell function doesn't work as expected

Asked May 08 '18 at 19:03

Active May 08 '18 at 19:10

Viewed 88 times

I'm new to powershell. Why does the array get mangled (seems like it gets concatenated???) when passed to the function test? I have no idea what's going on. Works OK if the function only has one parameter, but adding a second parameter makes it act up. I've tried googling, but can't come up with the right terms.

function test([string[]] $arrInFn, [boolean] $something) {
    Write-Host "Array length in function: $($arrInFn.Length)"
}

$arr = @()
$arr += "test"
$arr += "another entry"
$arr += "third entry"
Write-Host "------------------ TEST OUTPUT-------------------"
Write-Host "Array length inline: $($arr.Length)"
test $arr, $true

edited May 08 '18 at 19:10

asked May 08 '18 at 19:03

BLSully

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Parenthesis are not used when calling functions in Powershel: `test $arr, $true` – EBGreen May 08 '18 at 19:06
OK, fixed, but it still fails with the same output – BLSully May 08 '18 at 19:09
1

Woops, I was slacking. Get rid of the comma in the call as well. – EBGreen May 08 '18 at 19:15
OH ... this is going to take some getting used to. That did the trick. Thanks – BLSully May 08 '18 at 19:17
1

To add to EBGreen's comment. You can call each parameter like this as well: `test -arrInfn $arr -something $true` – jrider May 08 '18 at 19:17
If you add that as an answer, I'll accept – BLSully May 08 '18 at 19:17
1

That other question is not a perfect dupe but it is essentially the right answer and would have solved your problem. – EBGreen May 08 '18 at 19:21
Close enough. Not sure why I didn't find it before – BLSully May 08 '18 at 19:26

Passing string array to powershell function doesn't work as expected

0 Answers0