Verifies whether a string is in JSON format and presents a regular presentation of a malformed JSON-formatted string (JSON formatted)

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1. var str = {"Code": "", "Svcname": "", "Version": "", "Component": "", "category": "", "requestmsg": [{"FieldName": " UserName ', ' type ': ' Simple ', ' required ': ' True '},{' fieldName ': ' Age ', ' type ': ' Simple ', ' required ': ' True '}]}

First, check if the string is in JSON format: [HTML]View PlainCopy 

1. function Isjsonformat (str) {
2. try {
3. $.parsejson (str);
4. } catch (e) {
5. return false;
6. }
7. return true;
8. }

Format the JSON-formatted string output, first convert the JSON string to an object, and then format the object in JSON output: [HTML]View PlainCopy  

1. Json.stringify (Json.parse (JSON), null, "\ T")

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1. Json.stringify (Json.parse (JSON), NULL, 4)

Ps:\t: Represents indenting a tab;4: Represents the output formatted after indenting 4 spaces: [HTML]View PlainCopy 

2. {
4. "Code": "",
6. "Svcname": "",
8. "Version": "",
10. "Component": "",
12. "Category": "",
14. "Requestmsg": [
16. {
18. "FieldName": "UserName",
20. "Type": "Simple",
22. "Required": "True"
24. },
26. {
28. "FieldName": "Age",
30. "Type": "Simple",
32. "Required": "True"
34. }
36. ]
38. }

Recommend a good JSON online parsing tool: http://www.json.cn/

Verifies whether a string is in JSON format and presents a regular presentation of a malformed JSON-formatted string (JSON formatted)