Re: [Json] Allow any JSON value at the top level

[Jorge <[e-mail]>]

On 09/06/2013, at 23:08, Nico Williams wrote:

> At least several encoders and parsers allow any value type at the top-level, either as an option or no matter what.

All the current browsers can both .parse() and .stringify() strings, numbers, null and booleans at the top-level, per the ES5 specs (*):

JSON.parse(JSON.stringify("string"))
"string"
JSON.parse(JSON.stringify(27))
27
JSON.parse(JSON.stringify(true))
true
JSON.parse(JSON.stringify(false))
false
JSON.parse(JSON.stringify(null))
null
JSON.parse(JSON.stringify([27]))
[27]
JSON.parse(JSON.stringify({a:1}))
{a:1}

(*) <http://ecma-international.org/ecma-262/5.1/#sec-15.12.1.2>

<http://ecma-international.org/ecma-262/5.1/#sec-15.12.2>
"The parse function parses a JSON text (a JSON-formatted String) and produces an ECMAScript value. The JSON format is a restricted form of ECMAScript literal. JSON objects are realized as ECMAScript objects. JSON arrays are realized as ECMAScript arrays. JSON strings, numbers, booleans, and null are realized as ECMAScript Strings, Numbers, Booleans, and null."

<http://ecma-international.org/ecma-262/5.1/#sec-15.12.3>
"The stringify function returns a String in JSON format representing an ECMAScript value. It can take three parameters. The first parameter is required. The value parameter is an ECMAScript value, which is usually an object or array, although it can also be a String, Boolean, Number or null."
-- 
( Jorge )();