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Task/Named-parameters/Lingo/named-parameters.lingo

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+-- accepts either 3 integers or a single property list
+on foo (arg1, arg2, arg3)
+  if ilk(arg1)=#propList then
+    args = arg1
+    arg1 = args[#arg1]
+    arg2 = args[#arg2]
+    arg3 = args[#arg3]
+  end if
+  put "arg1="&arg1
+  put "arg2="&arg2
+  put "arg3="&arg3
+end
+
+foo(1,2) -- 3rd argument omitted
+-- "arg1=1"
+-- "arg2=2"
+-- "arg3="
+
+foo([#arg3:3]) -- only 3rd argument specified
+-- "arg1="
+-- "arg2="
+-- "arg3=3"