powershell - Use a function with unknown number of variables and other parameters

Question

I need to create a function. First variable must be an array with an unknown number of parameters plus another variable. My problem is that I don't know how distinguish between them.

I post an example:

function conc-str { param([string[]]$array,[string]$name) foreach($item in $array) { $str+= $item } write-host $str } conc-str(@("aa","bb","cc"),"dd")

The result of this function is

aa bb ccdd

but as you can see I loop array elements and concatenate them. I thought to get just

aa bb cc

Where is my mistake?

The syntax is a little bit different when compared to most other high level languages. Parameters are not separated by a comma and there are no surrounding braces. — stej
– stej, Commented Mar 1, 2011 at 6:17

ravikanth · Accepted Answer · 2011-03-01 05:40:51Z

The way you call it is:

conc-str @("aa","bb","cc") "dd"

You don't use "," as a parameter seperator in PowerShell. It is just a space. The moment you put a "," it becomes a single parameter.

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