actual = ''; expected = ',,,,,[object Object],[object Object],[object Object],[object Object],[object Object],,,,,,[object Object],[object Object],[object Object],[object Object],[object Object],,,,,,[object Object],[object Object],[object Object],[object Object],[object Object],,,,,,[object Object],[object Object],[object Object],[object Object],[object Object],,,,,,'; function f() { var e; for each (e in ["", {}, "", {}, "", {}, "", {}, ""]) { var g = function() { for (var i = 0; i < 5; ++i) appendToActual(e); } g(); } } f(); assertEq(actual, expected)