Is a primitive type considered JSON?

Question

Most place the JSON is in format like

{
    color: "red",
    value: "#f00"
}

Or

[  
    { color: "red",     value: "#f00"   },
    { color: "red",     value: "#f00"   }
]

And I want to ask is primitive type like string, bool, int also JSON?

I have found follow link,

http://json-schema.org/latest/json-schema-core.html

http://www.json.org/

https://zh.wikipedia.org/wiki/JSON

https://www.ietf.org/rfc/rfc4627.txt

http://www.c-sharpcorner.com/uploadfile/3d39b4/data-types-in-json/

And,

In RFC4627 it says

JSON can represent four primitive types (strings, numbers, booleans, and null) and two structured types (objects and arrays).

A string is a sequence of zero or more Unicode characters [UNICODE].

An object is an unordered collection of zero or more name/value pairs, where a name is a string and a value is a string, number, boolean, null, object, or array.

An array is an ordered sequence of zero or more values.

The terms "object" and "array" come from the conventions of JavaScript.

So I reading it as pure string, number boolean like

"a string"

100

true

Are all JSON,

But two of my colleagues think that primitive types can only be value in object,

{ ASTRING : "astring" } is JSON,

And if there's only "a string", this is not called, as it is not JSON format,

I think I, and my colleagues may not be professional enough to judge it,

So I want to know, is pure primitive type JSON?

.

Another idea for me is that , JSON is called a convenient way to exchanging data, but if this format didn't support pure string,

that is, if I just want to throw out a string, I can't use JSON to do it?

and have to force it change to { Message : "a message"},

and cannot use a way which I think is simpler just throw "a message" ...?

Answer 1

The relevant RFC is RFC 7159, not RFC 4627. RFC 4627 is "informational". RFC 7159 is "standards track"; it explicitly obsoletes RFC 4627.

Request for Comments: 7159                                  Google, Inc.
Obsoletes: 4627, 7158                                         March 2014
Category: Standards Track
ISSN: 2070-1721

In the text of RFC 7159, you'll find this.

13.  Examples

   This is a JSON object:

      {
        "Image": {
            "Width":  800,
            "Height": 600,
            "Title":  "View from 15th Floor",
            "Thumbnail": {
                "Url":    "http://www.example.com/image/481989943",
                "Height": 125,
                "Width":  100
            },
            "Animated" : false,
            "IDs": [116, 943, 234, 38793]
          }
      }
   [snip]
   Here are three small JSON texts containing only values:

   "Hello world!"

   42

   true