PowerShell Tail Recursion for Removing Empty Directories

remove-empty-dirs-tail-recurse.ps1

$tailRecursion = {
  param($Path)
    
  foreach ($childDirectory in Get-ChildItem -Force -LiteralPath $Path -Directory) {
      & $tailRecursion -Path $childDirectory.FullName
  }
  
  $currentChildren = Get-ChildItem -Force -LiteralPath $Path
  $isEmpty = $currentChildren -eq $null
  
  if ($isEmpty) {
    Write-Verbose "Removing empty folder at path '${Path}'." -Verbose
    Remove-Item -Force -LiteralPath $Path
  }
}

Usage: & $tailRecursion -Path .