JSON Duplicate Keys
waldron.rick at gmail.com
Thu Jun 6 06:46:18 PDT 2013
On Thu, Jun 6, 2013 at 7:29 AM, Douglas Crockford <douglas at crockford.com>wrote:
> The JSON RFC says
> The names within an object SHOULD be unique.
> to mean DON'T HAVE TO. In a perfect world, we would change the SHOULD to
> MUST, but we can't. Interoperability and security concerns demand that we
> specify what happens when keys are duplicated. So we may end up with
> something like this:
> The names within an object SHOULD be unique. If a key is duplicated,
> a parser SHOULD reject. If it does not reject, it MUST take only the
> last of the duplicated key pairs.
As far as I can tell, this is the de facto browser behavior.
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