When Microsoft added the ActiveX XMLHTTP object to Internet Explorer’s implementation of JavaScript, the company planted the seed for the revolution in Web applications known as Asynchronous Jav...

JSON produces slightly smaller documents, and JSON is certainly easier to use in JavaScript. XMLHttpRequest parses XML documents for you whereas you have to manually parse JSON, but is parsing JSON sl...

JSON , which stands for “JavaScript Object Notation”, is a lightweight data-interchange format that is easy for humans to read and write, and for machines to parse and generate. JSON is ba...