Handling JSON Responses with jQuery's getJSON() There are situations where a server returns a JSON string in response to your request. The jQuery utility function getJSON() parses the returned JSON string and makes it available to a callback function, which is the first parameter of the function. Syntax Here is the simple syntax for the getJSON() method: [selector]. getJSON(URL, [data], [callback]); Here is the description of all the parameters: URL: The URL of the server-side resource contacted via the GET method. data: An object whose properties serve as the name/value pairs used to construct a query string to be