Conversion between Json objects and Json strings (4 conversion methods)_json

1> Conversion methods supported by jQuery plug-in:

Copy code The code is as follows:

$.parseJSON(jsonstr); //jQuery.parseJSON(jsonstr), you can convert json string into json object

2> Conversion supported by browser Method (Firefox, chrome, opera, safari, ie9, ie8) and other browsers:

Copy code The code is as follows:

JSON.parse(jsonstr); //You can convert a json string into a json object
JSON.stringify(jsonobj); //You can convert a json object into a json string

Note: ie8 (compatibility mode), ie7 and ie6 do not have JSON objects. It is recommended to use the official JSON method and introduce json.js.

3>Conversion methods supported by Javascript:
eval('(' jsonstr ')'); //You can convert json string into json object, please note that it needs to be in json The character is wrapped in a pair of parentheses
Note: ie8 (compatibility mode), ie7 and ie6 can also use eval() to convert the string into a JSON object, but these methods are not recommended. This method is unsafe and eval will execute json expression in a string.

4>JSON official conversion method:
http://www.json.org/ provides a json.js, such as ie8 (compatibility mode), ie7 and ie6 It can support JSON objects and their stringify() and parse() methods;
You can get this js at https://github.com/douglascrockford/JSON-js. Generally, json2.js is used now.