match a value in an array

Question

Hi,

I've got this script that tells me if a value exits in groups.name now I want it to tell me when it doesn't exist.

            ForEach($asset in $currentFlexAssets.data.attributes.name)
            {
                ForEach($group in $groups.Name)
                {
                    If ($asset -match $group)
                    {
                        Write-Host "Keep = " $asset 
                    }
                }
            }

Is there something like If ($asset -match $group.name) ??

Answer 1

        ForEach($asset in $currentFlexAssets.data.attributes.name)
            $Found = $false
            ForEach($group in $groups.Name)
                If ($asset -match $group) {
                    Write-Host "Keep = " $asset
                    $Found = $true
                }
            }
            if ($Found -eq $false) {
                "Asset not found."
            }
        }

Answer 2

Why not this?

ForEach($asset in $currentFlexAssets.data.attributes.name)
{
    If ($groups.name -notcontains $asset){
        # do something
    }
}