Reuse functions in powershell

Hi ,

I'm having this old reference on how to reuser code in powershell scripts. https://devblogs.microsoft.com/scripting/how-to-reuse-windows-powershell-functions-in-scripts/

This has been working using powershell commend line or ISE - but now I'm migrating to Visual Studio Code  and this seems not to work in VSC - any suggestions?