How to create an Array in powershell v3

Question

I would like to know how i could create an array in Power shell V3 to generate a list of software on a local machine with the letter L for running services?

Answer 1

I don't know what you call a list of software on a local machine, but the following code creates a list of all Windows services on a machine with a letter "L" for those that are currently running.

$services = @() # create an empty array
$services = Get-Service | ` # get a list of services
    foreach {
        # project each element in the list to a new object with two properties:
        @{
            IsRunning = (&{ # "L" if a service is active, i.e. in "Running" status
               if ($_.Status -eq "Running") { "L" } else { "" } # or "" otherwise
            })
            Name = $_.Name  # a name of a service
        }
    }