private/SelectObjectWithDefault.ps1

function SelectObjectWithDefault
{
    [CmdletBinding()]
    param(
        [Parameter(ValueFromPipeline=$true)]
        [PSObject]
        $InputObject,
        [string]
        $Name,
        $Value
    )

    process {
        if ($_ -eq $null) { $Value }
        elseif ($_ | Get-Member -Name $Name) {
          $_.$Name
        }
        elseif (($_ -is [Hashtable]) -and ($_.Keys -contains $Name)) {
          $_.$Name
        }
        else { $Value }
    }
}