Chapter 9

Activities

1. Nothing, because our parameter is not written to accept pipeline input. As we discovered in Chapter 8, Writing Our First Script – Turning Simple Cmdlets into Reusable Code, to allow a parameter to accept pipeline input, we must add a parameter argument, like this:

Figure A.11 – Accepting values from the pipeline

On line 9, we’ve added a ValueFromPipeline argument to the parameter, which allows it to accept values from the pipeline. We’ve also enclosed the function in a process block, opening on line 12 and closing on line 20; if we don’t have a process block, then the function will only act on the last value in the pipeline.

2. Because Get-Random only accepts one positional parameter, -Maximum. If we run it as previously, then the maximum will be set as 15, and the cmdlet has no idea what to do with the 20 value. Similarly, Get-Fifteen20 15 -maximum 20 won’t work because the...