testHoleInDenseArray.js (376B)
1 var s; 2 3 function f(i) { 4 if (i > 4) /* side exit when arr[i] changes from bool to undefined (via a hole) */ 5 assertEq(s, undefined); 6 else 7 assertEq(s, false); 8 return 1; 9 } 10 11 /* trailing 'true' ensures array has capacity >= 10 */ 12 var arr = [ false, false, false, false, false, , , , , , true ]; 13 14 for (var i = 0; i < 10; ++i) { 15 (s = arr[i]) + f(i); 16 }