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Re: [Json] Minus Zero

Anders Rundgren <anders.rundgren.net@gmail.com> Mon, 20 June 2016 19:23 UTC

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To: Christian Zangl <coralllama@gmail.com>, "json@ietf.org" <json@ietf.org>
References: <2a7f88b9-f719-dfd8-08a9-1777833e53d8@gmail.com>
From: Anders Rundgren <anders.rundgren.net@gmail.com>
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Date: Mon, 20 Jun 2016 21:23:05 +0200
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Subject: Re: [Json] Minus Zero
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On 2016-06-19 22:41, Christian Zangl wrote:
> The RFC does not mention this but most (all?) JavaScript JSON libraries
> stringify -0 as "0" (including https://github.com/douglascrockford/JSON-js).
>
> Should this be included?

Serialization is not really a part of the JSON RFC.

ECMAScript V6 (ES6) is is the only normative JSON serialization reference.
Some JSON implementations are even incompatible with ES6 even for serialization of strings!
.NET and GO are currently being updated.

Serialization of floating point numbers is another thing, currently only Chrome, Safari, Firefox, node.js-V8, and my own Java implementation seem to follow ES6.

Using ES6 there is no such thing as -0 or -0.0 during serialization since the algorithm is designed to produce the shortest correct representation which is a single zero digit.

Anders

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