try {
    obj[i] = "a";
} catch (e) {}
var obj = {
    p: 100
};
var name = "p";
var a = [];
for (var i = 0; i < 10; i++) {
    a[i] = obj[name]--;
}
assertEq(a.join(), '100,99,98,97,96,95,94,93,92,91');