michael@0: 
michael@0: function foo() {
michael@0:   var x = 0;
michael@0:   for (var i = arguments.length - 1; i >= 0; i--)
michael@0:     x += arguments[i];
michael@0:   return x;
michael@0: }
michael@0: 
michael@0: function bar() {
michael@0:   var x = 0;
michael@0:   for (var i = 0; i < arguments.length; i++)
michael@0:     x += arguments[i];
michael@0:   return x;
michael@0: }
michael@0: 
michael@0: function baz(a,b,c,d,e) {
michael@0:   var x = 0;
michael@0:   for (var i = 0; i < arguments.length; i++)
michael@0:     x += arguments[i];
michael@0:   return x;
michael@0: }
michael@0: 
michael@0: for (var i = 0; i < 10; i++) {
michael@0:   assertEq(foo(1,2,3,4,5), 15);
michael@0:   assertEq(bar(1,2.5,true,{valueOf:function() { return 10}},"five"), "14.5five");
michael@0:   assertEq(baz(1,2,3,4,5), 15);
michael@0: }