michael@0: function bar(x, i) {
michael@0:   if (i == 50)
michael@0:     x.length = 0;
michael@0: }
michael@0: 
michael@0: function foo(x, j, n) {
michael@0:   var a = 0;
michael@0:   for (var i = 0; i < n; i++) {
michael@0:     var q = x[j];
michael@0:     bar(x, i);
michael@0:     if (typeof q == 'undefined')
michael@0:       a++;
michael@0:   }
michael@0:   return a;
michael@0: }
michael@0: 
michael@0: var a = foo([1,2,3,4], 3, 100);
michael@0: assertEq(a, 49);