Differences between the jquery version and the JSON Data Format

In the future, we chose jquery as the registration page. I don't know what version jquery is now. The JS Code I wrote references jquery1.3.2, while Comrade wheat uses jquery1.4.2 for the static interface. A problem was found during use. In versions 1 and 3.2, the success function can be responded, but in version 1.4.2, the success function is not responded, and the error function is returned. I searched the internet to find out that it was a version issue!

In Versions later than 1.4, the format of JSON returned data must be:

Code:

1. After query 1.4, the JSON format is changed to strict.
2. The {"key": "value", "key": "value"} must be in this format "};
4. Like the original
5. {Key: value, key: Value}
6. {'Key': 'value', 'key': 'value '}
8. This is all incorrect and not standard, so jquery Returns Error

Jquery

Code:

1. $. Ajax ({
2. Type: "Post ",
3. URL: '/ZZB/register/register_check.jsp ',
4. Cache: false,
5. Datatype: 'json ',
6. Data: {nickname: $ ("# nickname"). Val ()},
7. Success: function (result ){
8. Alert ('success '); 
9. },
10. Failure: function (result ){
11. // Console. Log (result );
12. },
13. Error: function (){
14. Alert ('error ');
15. }
16. });

Discussion: http://topic.csdn.net/u/20100310/17/4278ccd1-c5b4-41af-975e-65fba61ba00d.html