in PS there are many operator collections: like -contains, -join, where, foreach.... every operator performs one specific task very well (except where and foreach GPO "General Purpose Operator"). it's great but
since ps does not yet implement linq it lacks other important operators like: .map()

$collection.map( {code} , arg1, arg2, $collection2 )

.map() traverses two lists in parallel, applying a scriptblock to the corresponding items from each list. If one list is longer, the extra elements are ignored.

arg1 = name of first variable in first collection
arg2 = name of second variable in second collection

proof of concept:

PS> (3,5,6).map( {  $a + $b } , a, b, (1,2,4) )
4
7
10