What is XML, JSON, and AJAX? What is XML (Extensible Markup Language)? XML is a markup language used to store and transport structured data. It provides a set of rules for encoding documents in a format that is both human-readable and machine-readable. XML uses tags to define elements and their hierarchical relationships, allowing for the representation of complex data structures. It is widely used in various domains, such as web services, data interchange, configuration files, and more. The Extensible Markup Language (XML) is a simple text-based format for representing structured information: documents, data, configuration, books, transactions, invoices, and much more. It was derived from an older standard format called SGML (ISO 8879), in order to be more suitable for Web use. What is JSON (JavaScript Object Notation)? JSON is a lightweight data interchange format that is easy for humans to read and write, and also easy for machines to parse and generate
