Re: Empty? No. Array? No. Has? Yes.

[Finn Wilcox <finnw@...>]

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On 03/07/2013 19:44, Roberto Ierusalimschy wrote:
> 
> It should be clear that how to represent "null" in JSON is a
> problem quite different from how to represent "null" in Lua.
> 
That one is easy - NaN in Lua maps to null in JSON.  There is no
ambiguity there as you would get the same result from a NaN in
Javascript.  You just need to remember to check for it (because NaN is
truthy in Lua.)  nil still represents the absence of a key in the JSON
object as normal.

http://stackoverflow.com/q/1423081/12048
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