Category: XML

What is an “XML Home” / XML Document? An XML document is the complete file or message that contains: (optional) XML declaration (optional) comments, processing instructions Exactly one root element (this is the most...

introduction to XML, written as if I’m a patient teacher explaining it to a beginner student (or someone who has forgotten the basics and wants to really understand it properly). I will go slowly,...

How can XML actually be used in the real world? I will explain it like we are sitting together and I’m showing you different real-life situations where XML appears, why people chose it, what...

What is the “XML Tree”? When we talk about the XML tree, we mean: XML data is organized like a family tree or an organization chart — not like a flat table or a...

XML Syntax Rules – The Absolute Must-Know List XML is extremely strict about syntax. If even one rule is broken → the document is not well-formed → most parsers will refuse to read it...

1. What is an XML Element? (The simplest honest definition) An XML element is the basic building block of XML. It consists of: An opening tag (sometimes called start tag) Content (which can be...

1. What is an XML Attribute? (The clearest explanation) An attribute is extra information that describes an element. It is written inside the opening tag (never in the closing tag), and it always looks...

XML Namespaces — written as if we are sitting together, I’m drawing on the whiteboard, showing examples step by step, and explaining why this concept exists, why it is important, and how people actually...

Displaying XML — written as if I’m your patient teacher explaining step by step how XML is actually shown / presented / viewed / displayed in different real-life situations. We will cover many different...

1. What is XMLHttpRequest really? XMLHttpRequest is a built-in browser API that allows JavaScript code running in the browser to make HTTP requests to a server — without reloading the entire page. It is...