powershell_tip

function Get-ListOfFiles {
    [OutputType('System.IO.FileInfo')]
    [CmdletBinding()]
    param(
        [string]$Path
    )
    Get-ChildItem -File -Path $Path
}

Get-ListOfFiles -Path "C:\Temp" | ForEach-Object {
    $_. <hit tab and it will show you all properties since it knows it's a FileInfo object>
}