javascript - Origin of the "@attributes" element in JSON generated from XML -


how and/or in conventions xml attributes put in object named "@attributes" when converting xml json? style used in this generic xml parser:

obj["@attributes"] = {}; (var j = 0; j < xml.attributes.length; j++) {   var attribute = xml.attributes.item(j);   obj["@attributes"][attribute.nodename] = attribute.nodevalue; }

..to create json this:

... elem_array = [   {     "@attributes": {       an-attribute: "",       another-one: "mr.text"     }   } ] ...

i'm not looking answers element-centric vs. attribute-centric xml design, unless things more closely related question thought of course. ;)

where did @attributes notation come , there reasons use on using own notation?

thanks!

it evolved xpath @attribute syntax

http://www.tizag.com/xmltutorial/xpathattribute.php

using @ makes recognisable people used xpath

example: xpath : nodes child node contains attribute


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