Deep cloning objects defined by JSON.

[Jake Verbaten]

>
> The idea here is that methods do not belong in data structures (clone
>> should be to efficiently clone data).
>>
>
> This is already too much "unfortunate" restriction.
>
> What about calculated "get" properties:
>
> > var o = {
> ...   get foo() {
> ...     return "foo";
> ...   }
> ... },
> ... clone = JSON.parse(JSON.stringify(o));
>
> > clone
> { foo: 'foo' }
>

I don't know what the sensible choice here is. Could be either way.

Your right, restrictions are annoying.
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