How to hide "Helper" Functions in Powershell Modules

powershell module

One thing I have done is use the verb-noun naming convention for functions I want to export, but leave out the hyphen in helper functions.

Then, export-modulemember *-* takes care of only exporting what you want to export.

powershell module

Just add Export-ModuleMember to the bottom of you module.

Let's say you have the following Functions in your module:

New-Function0New-Function1New-Function2New-HelperFunction0

Add these lines to the bottom of the module file:

Export-ModuleMember -function New-Function0Export-ModuleMember -function New-Function1Export-ModuleMember -function New-Function2

When you run Import-Module on this module, it will only import the functions defined by Export-ModuleMember.

Now let's say you also wanted to export an alias for New-Function1. just add this to the end of your module:

Export-ModuleMember -alias nf1

Now when you use Import-Module, it will load the functions you defined, as well as an alias (nf1) for New-Function1.

powershell module

In many cases, a declared function can be replaced with a scriptblock (ie an anonymous function).

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