public static bool DeleteObjectElem(Scriptable target, object elem, Context cx)
{
string s = ToStringIdOrIndex(cx, elem);
if (s == null)
{
int index = LastIndexResult(cx);
target.Delete(index);
return !target.Has(index, target);
}
else
{
target.Delete(s);
return !target.Has(s, target);
}
}