The other day I stumbled over the fact that Compare-Object doesn't handle a Null object very well. This does of course make some sense but, in my case I had to come up with a workaround since the objects being passe to the Compare-Object might very well most of the time be Null objects. I'm comparing AD Group members.. and Compare-Objects side indicator makes this really easy.
So this is my question, is the solution I'll outline below the "correct" way of solving this issue, or is there a better practice?
What I did – was I created my own Compare-ObjectADGroupMember function which takes the same two parameters as Compare-Object ReferenceObject and DifferenceObject. I then measure if either of these are Null and if so I assign them a dummy value. At this point neither objects contains a Null vall and I run the regular Compare-Object command. In the end I remove any dummy values from the output of Compare-Object and return that.
Is this a healthy approach or could it be improved? My function is very ADObject specific
Have you looked at Compare-Object2 in https://github.com/alx9r/ToolFoundations?
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