How to delete Azure Resource Groups that doesn't have any resources in them?

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It's been a long time since I wrote posts here, I apologize for this - work load :).

I've just worked on a script that has been originally written by thuru on how to delete Azure Resource group using a power-shell script, I already submitted the changes in GitHub pending approval from thuru the original author but until then, here the code.

This code is supporting Azure Power Shell SDK 1.1.0

 <# script will run on the current selected subscription of the session #>
 
 Login-AzureRMaccount
 $currentSub = Get-AzureSubscription -Current
 Write-Host Script will run on $currentSub.SubscriptionName ($currentSub.SubscriptionId)
 $isOk = Read-Host 'Do you want to continue [Y/N] ?'
 
 if ($isOk.ToUpper().Equals("Y"))
 {
 
 
 $resourceGroups = Get-AzureRmResourceGroup
 $fullAuto = Read-Host 'Do you want to delete all the resource groups which do not have any resources. If you select No you can choose one by one and delete them [Y/N] ?'
 
 $found = 0;
 $deleted = 0;
 
 foreach($resourceGroup in $resourceGroups)
 {
 $rgName = $resourceGroup.ResourceGroupName
 
 $resources = Find-AzureRmResource -ResourceGroupName $rgName
 
 if ($resources.Count -eq 0)
 {
 $found++
 Write-Host Resource Group " $rgName " does not contain any resources.
 if($fullAuto.ToUpper().Equals("N"))
 {
 $input = Read-Host 'Do you want to delete it [Y/N] ?'
 if ($input.ToUpper().Equals("Y"))
 {
 Write-Host Deleting Resource Group - $rgName
 Remove-AzureRmResourceGroup -Name $resourceGroup.ResourceGroupName -Force -Verbose
 Write-Host Deleted Resource Group - $rgName
 $deleted++
 }
 }
 else {
 Write-Host Deleting Resource Group - $rgName
 Remove-AzureRmResourceGroup -Name $resourceGroup.ResourceGroupName -Force -Verbose
 Write-Host Deleted Resource Group - $rgName
 $deleted++
 }
 
 }
 }
 Write-Host $deleted / $found Resource Groups deleted with no resources
 
 } else { exit }