Sometimes a function should set a variable in the caller scope. The way to do this depends on how this function is defined and imported.
Functions defined in scripts may use straightforward Set-Variable -Scope 1.
This way is not working in module functions.
Functions defined in modules may use less obvious $PSCmdlet.SessionState.PSVariable.Set().
This way is not working in script functions.
Scripts
- Lib.ps1 defines functions using two different ways of setting a variable.
- Test-1.script.ps1 imports (dot-sources) script functions and shows how they work.
- Test-2.module.ps1 imports module functions (SetVariable.psm1) and shows how they work.