Applescript: how to 2 lists of numbers

Question

I want to update a variable (list of numbers for coordinates) by adding a second list.
property winPosVar : {50, 100}
property winOffsetVar : {50, 50}
set winPosVar to winPosVar + winOffsetVar
This gives me an error, but if it worked the way I wanted, it would give me winPosVar = {100,150}.
Is it possible to add 2 lists without breaking out individiual variables for each item in the list?

Answer 1

Use code such as:
set list1 to {50, 100}
set list2 to {50, 50}
set list3 to {}
repeat with this_num from 1 to (count list1)
set list3 to list3 & ((item this_num of list1) + (item this_num of list2))
end repeat
(87577)