docs: fix invalid return value in "Returning errors" example. (#199)

expr-lang · Aug 11, 2021 · 16bee8c · 16bee8c
1 parent 6198684
commit 16bee8c
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/docs/Custom-Functions.md b/docs/Custom-Functions.md
@@ -154,7 +154,7 @@ func main() {
 			if i < 0 {
 				return 0, errors.New("value cannot be less than zero")
 			}
-			return i * 2
+			return i * 2, nil
 		},
 	}