Please note, this is a STATIC archive of website developer.mozilla.org from 03 Nov 2016, cach3.com does not collect or store any user information, there is no "phishing" involved.

我们的志愿者还没有将这篇文章翻译为 中文 (简体)加入我们帮助完成翻译!

setAttributeNodeNS adds a new namespaced attribute node to an element.

Syntax

replacedAttr = element.setAttributeNodeNS(attributeNode) 
  • replacedAttr is the replaced attribute node, if any, returned by this function.
  • attributeNode is an Attr node.

Example

// <div id="one" xmlns:myNS="https://www.mozilla.org/ns/specialspace" 
            myNS:special-align="utterleft">one</div> 
// <div id="two">two</div> 


var myns = "https://www.mozilla.org/ns/specialspace"; 
var d1 = document.getElementById("one"); 
var d2 = document.getElementById("two"); 
var a = d1.getAttributeNodeNS(myns, "special-align"); 
d2.setAttributeNodeNS(a.cloneNode(true));
alert(d2.attributes[1].value) // returns: `utterleft'

Notes

If the specified attribute already exists on the element, then that attribute is replaced with the new one and the replaced one is returned.

Note that if you try to set without cloning the node, Mozilla gives an NS_ERROR_DOM_INUSE_ATTRIBUTE_ERR "Attribute already in use" error, as the DOM requires cloning for Attr to be reused (unlike other Nodes which can be moved).

DOM methods dealing with element's attributes:

Not namespace-aware, most commonly used methods Namespace-aware variants (DOM Level 2) DOM Level 1 methods for dealing with Attr nodes directly (seldom used) DOM Level 2 namespace-aware methods for dealing with Attr nodes directly (seldom used)
setAttribute (DOM 1) setAttributeNS setAttributeNode setAttributeNodeNS
getAttribute (DOM 1) getAttributeNS getAttributeNode getAttributeNodeNS
hasAttribute (DOM 2) hasAttributeNS - -
removeAttribute (DOM 1) removeAttributeNS removeAttributeNode -

Specification

DOM Level 2 Core: setAttributeNodeNS

文档标签和贡献者

 最后编辑者: fscholz,