Global variables at module scope

I recently ran into the scenario of needing global variables for use within a new module I was creating. This naturally lead to consulting the hive mind that is otherwise known as “The Internet”. Luckily enough, I stumbled across a [post by “GregM”] on the TechNet forums, that proposed an interesting solution.

1. Create a module manifest for the module.
2. Update the “PrivateData” record in the manifest.

...
FileList = @()
PrivateData = @{g1 = "string";g2 = "stringTwo";g3 = "stringThree"}

And that’s all it takes to initialize a global variable within the module scope. Now, on to the manipulation.

# Retrieving the global variable value and assigning it to a variable
$test = $MyInvocation.MyCommand.Module.PrivateData['g1']

# Modify the global variable value
$MyInvocation.MyCommand.Module.PrivateData['g1'] = $test