How to convert json string with javascript

Method: 1. Use parseJSON method, syntax "$.parseJSON(string)"; 2. Use JSON.parse method, syntax "JSON.stringify(string)"; 3. Use eval method, Syntax "eval('(' string')')".

The operating environment of this tutorial: windows7 system, javascript version 1.8.5, Dell G3 computer.

1. Conversion methods supported by jQuery plug-in:

Example:

$.parseJSON(jsonstr); //jQuery.parseJSON(jsonstr), you can Convert json string to json object

2. Conversion methods supported by browsers (Firefox, chrome, opera, safari, ie) and other browsers:

Example:

JSON.parse(jsonstr); //You can convert json strings into json objects

JSON.stringify(jsonobj); //You can convert json objects into json strings

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 a json string into a json object. Note that it needs to be wrapped outside the json character. A pair of parentheses

Note: ie8 (compatibility mode), ie7 and ie6 can also use eval() to convert a 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, so that ie8 (compatibility mode), ie7 and ie6 can support it JSON object and its stringify() and parse() methods;

You can get this js at https://github.com/douglascrockford/JSON-js, generally json2.js is used now.

[Recommended learning: javascript advanced tutorial]

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