Menu
For example, the WPF namespace is:
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
If I define my own namespace, should it also start with http? Isn't http misleading?
746
Just like namespaces in . NET, namespaces in XML documents are designed to help prevent and resolve name collisions, especially if XML documents are from different organizations and/or domains of knowledge.
XML Namespaces - The xmlns Attribute When using prefixes in XML, a namespace for the prefix must be defined. The namespace can be defined by an xmlns attribute in the start tag of an element. The namespace declaration has the following syntax. xmlns:prefix="URI".
When you use multiple namespaces in an XML document, you can define one namespace as the default namespace to create a cleaner looking document. The default namespace is declared in the root element and applies to all unqualified elements in the document. Default namespaces apply to elements only, not to attributes.
HTML is being defined in terms of the DOM and during parsing of a text/html all HTML elements will be automatically put in the HTML namespace, http://www.w3.org/1999/xhtml . However, unlike the XHTML serialization, there is no real namespace syntax available in the HTML serialization (see previous question).
Namespaces doesn't have any meaning in their value, except for that value to be unique to avoid nameclashing. This is why you see a lot of companies putting in the URL for their own website as the namespace. URLs serve the same purpose, to be unique. Over the years it's just become good practice to use an URL, because if everyone does that, no nameclashing should occur :)
106
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
