Finding empty resource groups in Azure

Not easy to have control over your Azure resource groups, but maybe find all those whiteout any content could help?
I have created a PowerShell script helping me in my environment. Should be easy to adjust it to different needs.

Got valuable help from VidarW

The script creates a csv file, but it is easy to change it for instance to a grid view instead 

Script are located in my Github:
https://github.com/OTvedt/Scripts-For-Sharing/tree/master/Azure/ResourceGroup/Empty-RGs

And you can find Vidars stuff here:
https://github.com/vidarw