michael@0: actual = '';
michael@0: expected = '101,';
michael@0: 
michael@0: function looper(f) {
michael@0:   for (var i = 0; i < 10; ++i) {
michael@0:     for (var j = 0; j < 10; ++j) {
michael@0:       f();
michael@0:     }
michael@0:   }
michael@0: }
michael@0: 
michael@0: function tester() {
michael@0:   var x = 1;
michael@0:   looper(function() { ++x; });
michael@0:   return x;
michael@0: }
michael@0: 
michael@0: appendToActual(tester());
michael@0: 
michael@0: 
michael@0: assertEq(actual, expected)