Invoke an action on a file using a hash table of actions and null coalescing to report invalid action

Invoke-FileActionWithHashTableAndNullCoalescing.ps1

$VerbosePreference = 'Continue'
$action = 'New'
$path = 'c:\somefile.txt'

$actions = @{
    'New' = {
        Write-Verbose -Message 'Execute New-Item'
        New-Item -Path $path
    }

    'Remove' = {
        Write-Verbose -Message 'Execute Remove-Item'
        Remove-Item -Path $path
    }

    'Get' = {
        Write-Verbose -Message 'Execute Get-Item'
        Get-Item -Path $path
    }
}

return ($actions[$action], {Write-Verbose -Message 'Invalid Action'}, 1 -ne $null)[0].Invoke()