Cleaning up IIS Express sites v2

$appCmd = "C:\Program Files (x86)\IIS Express\appcmd.exe"
$result = Invoke-Command -Command {& $appCmd 'list' 'sites' '/text:SITE.NAME' }

function deleteSite($site){

Invoke-Command -Command {& $appCmd 'delete' 'site'  $site }  

}

if ($result -is [system.array]){  

for ($i=0; $i -lt $result.length; $i++)  

{  

deleteSite($result[$i])  

}  

}  

else {  

deleteSite($result)  

}