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PS C:\tmp> ls tst                                         # stringific
+ation of list of objects

...
6
PS C:\tmp> (ls tst).length                                # new length
18

PS C:\tmp> (ls tst*).name           # name for each list element
tst
...
tst_pde.pm~
PS C:\tmp> (ls tst*).length         # length of list not list elements
10

PS C:\tmp> ls -Path HKLM:\HARDWARE

...
RESOURCEMAP
UEFI
PS HKLM:\HARDWARE>