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JSON
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XML
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| Stands For |
JSON : “JavaScript Object Notation”. |
XML: “Extensible Markup Language”. |
| Extended From |
JSON is extended from JavaScript. |
XML is extended from SGML : “Standard Generalized Markup Language“. |
| Purpose |
JSON is one type of text-based format or standard for interchanging data i.e. human readable. JSON is developed by “Douglas Crockford”. |
XML is a Markup Language having format that contains set of rules for the encoding the documents which is readable for both human & machine. XML is developed by W3C :“World Wide Web Consortium “. |
| Syntax |
JSON syntax is lighter than XML as JSON has serialized format of data having less redundancy. JSON does not contain start and end tags. |
XML is not so lighter as JSON as having start and end tags and it takes more character than JSON to represent same data. |
| Speed |
JSON is light – weighted in compare to XML as it has serialized format and so faster also. |
XML is not so light weighted as JSON. |
| Support of Data Type & Array |
JSON supports datatype including integer and strings, JSON also supports array. |
XML does not provide any data type so needs to be parsed into particular datatype. No direct support for array also. |
| Object Support |
JSON has support of native objects. |
XML can get support of objects through mixed use of attributes & elements. |
| Comments |
JSON does not support Comments |
XML supports comments. |
| Namespace |
JSON does not have support for Namespaces. |
XML supports Namespaces. |
| Mapping |
JSON is data oriented and can be mapped more easily. |
XML is document oriented and needs more effort for mapping. |
| Parsing |
JSON uses only evel() for parsing i.e. for interpreting the JavaScript code & returns the result. It does not need any additional code for parsing. |
XML needs XML Document Object Model (DOM) implementation & with that additional code for mapping text back to the JavaScript objects. |
| Application |
For Web services, JSON is better. |
For configuration, XML is better. |
| Changing Format |
You can not change JSON data to other format. |
In XML, using XSLT you can change XML data into another format like comma –delimited, plain text, JSON, etc. |
| Access |
In JSON no such is interface for getting direct access to a part in JSON data-structure. |
In XML, Using XPath, it is possible to get the direct access to a particular part of multiple parts of XML data- structure. |
