Complete TODO for coalesced function parameters.

examples/functions/functions.go

@@ -15,12 +15,21 @@ func plus(a int, b int) int {
     return a + b
 }
 
+// When you have multiple consecutive parameters of
+// the same type, you may omit the type name for the
+// like-typed parameters up to the final parameter that
+// declares the type.
+func plusPlus(a, b, c int) int {
+    return a + b + c
+}
+
 func main() {
 
     // Call a function just as you'd expect, with
     // `name(args)`.
     res := plus(1, 2)
     fmt.Println("1+2 =", res)
-}
 
-// todo: coalesced parameter types
+    res = plusPlus(1, 2, 3)
+    fmt.Println("1+2+3 =", res)
+}

examples/functions/functions.sh

@@ -1,5 +1,6 @@
 $ go run functions.go 
 1+2 = 3
+1+2+3 = 6
 
 # There are several other features to Go functions. One is
 # multiple return values, which we'll look at next.