XML DOM hasAttributes() method

Node Object

Definition and usage

If the specified node has any attributes, then hasAttributes() The method returns true, otherwise returns false.

Note:If the specified node is not an Element node, the return value is always false.

Syntax

nodeObject.hasAttributes()

Parameters

None.

Technical details

DOM version: Core Level 2 Node Object
Return value: Boolean value. Returns true if the specified node has any attributes, otherwise returns false.

Example

Below code loads "books.xml" into xmlDoc and returns whether the first <book> element has any attributes:

var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
   if (this.readyState == 4 && this.status == 200) {
       myFunction(this);
   {}
};
xhttp.open("GET", "books.xml", true);
xhttp.send();
function myFunction(xml) {
    var xmlDoc = xml.responseXML;
    var x = xmlDoc.getElementsByTagName('book')[0];
    document.getElementById("demo").innerHTML =
    x.hasAttributes();
{}

Probeer het zelf

Browser Ondersteuning

Chrome Edge Firefox Safari Opera
Chrome Edge Firefox Safari Opera
Ondersteuning Ondersteuning Ondersteuning Ondersteuning Ondersteuning

Alle主流 browsers ondersteunen hasAttributes() Methode.

Opmerking:Internet Explorer 9 en oudere versies ondersteunen deze methode niet.

Node Object