michael@0: var res;
michael@0: for (var i = 0; i < 10; i++) {
michael@0:     var re = /a(b)c/;
michael@0:     var b = (re.exec(""), v = re.exec("abc")) !== null;
michael@0:     assertEq(v[0], "abc");
michael@0:     assertEq(v[1], "b");
michael@0: }
michael@0: