function bar(x, y) { return x + y; } function foo(x, y) { var a = 0; for (var i = 0; i < 1000; i++) { a += bar(x, y); a += bar(x, y); a += bar(x, y); a += bar(x, y); } return a; } var q = foo(0, 1); assertEq(q, 4000);