stands for eXtensible Markup Language. XML is a markup language much like HTML. XML was designed to store and transport data. XML was designed to be self-descriptive.

XML supports 3 types on tags .

<begin tag> , < /end tag> <empty tag/> APIs parse the tags for us . so don’t worry !

XML : declaration it’s at the top of the xml document , and the declarations are not required . EX : <? Version = “1.0”?>

XML Elements : -Logical component xml document , it’s divided into markup and content

Elements have text nodes : Which have child elements or child content

Citation : David Gassner , https://www.lynda.com/David-Gassner/87-1.html .

https://www.w3.org/XML/ , – Extensible Markup Language.
https://www.w3schools.com/xml/xml_whatis.asp – Introduction to XML