What is the difference between JSON and JSONP?

Difference between JSON and JSONP

JSON stands for JavaScript object notation while JSONP stands for JavaScript object notation with padding. The former one refers to a standard format that is human readable and used to transfer the information from one server to another. Later one is a JSON having the ability to translate the entire information to other domains.

Example of JSON is: {"Name": "Foo", "Id": 1234, "Rank": 7};

Example of Jsonp is: functionCall({"Name": "Foo", "Id.": 1234, "Rank": 7});

Understanding with JSON

JavaScript object notation or JSON represents a lightweight data-interchange utility of format which is based upon the JavaScript literal representations for object, strings, numbers, booleans or array. Its variation is highly supported by several languages competing with XML as a dynamic protocol for web services and system configurations. It was formalized by Douglas Crockford in the year 2001. It may look like a JavaScript but it also follows certain specifications like-

• Its strings are wrapped by double quotes
• The number cannot have a dominant zero.
• The concept of the JavaScript identifier is not suitable for JSON, where all the key names must be in the same string.

Understanding with JSONP

The data transfer between client and server is done by JSONP. When dealing with the data fetching, from different domains, Jsonp is utilized. Javascript object notation with padding or JSONP was documented for the first time by Bob Ippolito in the year 2005 as a simple and effective option to make the ability of script tags usable. In order to make the script tag work, it supports padding.

Further differences are Between JSON and JSONP