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actual = ''; expected = '0,0,0,1,1,1,2,2,2,3,3,3,4,4,4,'; function g(a) { for (var i = 0; i < 3; ++i) { a(); } } function f(y) { var q; for (var i = 0; i < 7; ++i) { q = function() { appendToActual(y); }; } g(q); } for (var i = 0; i < 5; ++i) { f(i); } assertEq(actual, expected)