The method of converting a JSON string into a JSON object by JS parsing _javascript techniques

For example:

JSON string:
var str1 = ' {' name ': ' cxh ', ' sex ': ' Man '} ';
JSON object:
var str2 = {"Name": "Cxh", "Sex": "Man"};

One, JSON string converted to JSON object

To use the above str1, you must first convert to a JSON object by using the following method:

Convert from JSON string to JSON object

var obj = eval (' (' + str + ') ');

Or

var obj = Str.parsejson (); Convert from JSON string to JSON object

Or

var obj = json.parse (str); Convert from JSON string to JSON object

Then, you can read this:

Alert (Obj.name);

Alert (Obj.sex);

Special Note: If obj is a JSON object, then using the eval () function to convert (even multiple conversions) is a JSON object, but there is a problem with using the Parsejson () function (throwing a syntax exception).

You can use the tojsonstring () or global method Json.stringify () to convert the JSON object to a JSON string.

For example:

var last=obj.tojsonstring (); Convert a JSON object to a JSON character

Or

var last=json.stringify (obj); Convert a JSON object to a JSON character

alert (last);

Attention:

In several of the above methods, except for the eval () function, which is JS-self-contained, several other methods come from the Json.js package. The new version of JSON modifies the API by injecting the json.stringify () and Json.parse () two methods into the Javascript built-in object, which becomes the object.tojsonstring (), which becomes the Strin G.parsejson (). If you are prompted not to find the tojsonstring () and Parsejson () methods, your JSON package version is too low.

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Http://tools.jb51.net/code/json

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