On Jul 21, 2013, at 11:05 PM, Jonas Sicking wrote: >> > > I still don't feel like I have a clear answer to two fundamental > questions when designing DOM specs: > > 1. Is it ever appropriate to return Date objects from methods in the > DOM? If so, in what circumstances. Two cases where we are currently > considering using Date objects are: ... > 2. Is it ever appropriate to return a Date object from a "readonly" > property.
How about : 3. Is it ever appropriate for a DOM API to accept and retain a reference to a Date object? The timevalue of a Date object that was passed to a DOM API can be modified by the original client after the DOM call returns. If the DOM has retained and uses a reference to the Date object it will see the modified timevalue rather than the originally pass timevalue. Allen
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