What is the minimum valid JSON?

Question

I\'ve carefully read the JSON description http://json.org/ but I\'m not sure I know the answer to the simple question. What strings are the minimum possible valid JSON?

Answer 1

The ecma specification might be useful for reference:

http://www.ecma-international.org/ecma-262/5.1/

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. JSON uses a more limited set of white space characters than WhiteSpace and allows Unicode code points U+2028 and U+2029 to directly appear in JSONString literals without using an escape sequence. The process of parsing is similar to 11.1.4 and 11.1.5 as constrained by the JSON grammar.

JSON.parse("string"); // SyntaxError: Unexpected token s
JSON.parse(43); // 43
JSON.parse("43"); // 43
JSON.parse(true); // true
JSON.parse("true"); // true
JSON.parse(false);
JSON.parse("false");
JSON.parse("trueee"); // SyntaxError: Unexpected token e
JSON.parse("{}"); // {}
JSON.parse("[]"); // []