rearranged the test of the first exercise,

so that a working `range` function will generate output before creating a working `sum` function.

Author: zevaverbach

04_data.txt

@@ -1199,10 +1199,10 @@ ifdef::interactive_target[]
 ----
 // Your code here.
 
-console.log(sum(range(1, 10)));
-// → 55
 console.log(range(5, 2, -1));
 // → [5, 4, 3, 2]
+console.log(sum(range(1, 10)));
+// → 55
 ----
 endif::interactive_target[]