Problem
1. What is the disadvantage of using HTML for the return data for an Ajax request?
2. When XML is used for the return data for an Ajax request, where does the callback function find it?
3. What are the two ways XML is used in the callback function?
4. What two data types provide the forms of the data in a JSON string?
5. What property of the XHR object stores the JSON data from an Ajax request?