Question

I’m writing a simple powershell script, and I don’t understand its behavior. Here is the code.

Function print($first,$second){
Write-Host "$first"
}

$one="Dog"
$two="Cat"

print($one,$two)

And here is the output.

Dog Cat

I don’t know why its printing both parameters instead of just the one that I asked for. I found a similar question posted that says the answer to the solution is to write

print $one $two

But I don’t know why.
The other question is at How do I pass multiple string parameters to a PowerShell script?

Can anyone illuminate on this subject?

Answer 1

Like you mentioned, you have to call it as:

print $one $two

In Powershell, arguments to functions are delimited with space and not comma and are not enclosed in parentheses ( method arguments are, though)

The way you were calling, print($one,$two), it is like calling print with one argument which is an array – ($one,$two). So when you write-host $first, you are echoing the array and hence you see them both.