michael@0: function heavyFn1(i) { 
michael@0:     if (i == 3) {
michael@0: 	var x = 3;
michael@0:         return [0, i].map(function (i) i + x);
michael@0:     }
michael@0:     return [];
michael@0: }
michael@0: 
michael@0: function testHeavy() {
michael@0:     for (var i = 0; i <= 3; i++)
michael@0:         heavyFn1(i);
michael@0: }
michael@0: 
michael@0: testHeavy();