Difference between json.js and json2.js

Question

Can someone tell me what the difference is between the 2 JSON parsers?

https://github.com/douglascrockford/JSON-js/blob/master/json.js
https://github.com/douglas

Answer 1

I also noticed that json2 stringified arrays differently than json2007.

In json2007:

var array = [];
array[1] = "apple";
array[2] = "orange";
alert(array.toJSONString()); // Output: ["apple", "orange"].

In json2:

var array = [];
array[1] = "apple";
array[2] = "orange";
alert(JSON.stringify(array)); // Output: [null, "apple", "orange"].