Element.attributes
The Element.attributes
property returns a live collection
of all attribute nodes registered to the specified node. It is a
NamedNodeMap
, not an Array
, so it has no Array
methods and the Attr
nodes' indexes may differ among browsers. To be more
specific, attributes
is a key/value pair of strings that represents any
information regarding that attribute.
Value
A NamedNodeMap
object.
Examples
Basic examples
// Get the first <p> element in the document
var para = document.getElementsByTagName("p")[0];
var atts = para.attributes;
Enumerating elements attributes
Numerical indexing is useful for going through all of an element's attributes. The following example runs through the attribute nodes for the element in the document with id "paragraph", and prints each attribute's value.
<!DOCTYPE html>
<html>
<head>
<title>Attributes example</title>
<script type="text/javascript">
function listAttributes() {
var paragraph = document.getElementById("paragraph");
var result = document.getElementById("result");
// First, let's verify that the paragraph has some attributes
if (paragraph.hasAttributes()) {
var attrs = paragraph.attributes;
var output = "";
for(var i = attrs.length - 1; i >= 0; i--) {
output += attrs[i].name + "->" + attrs[i].value;
}
result.value = output;
} else {
result.value = "No attributes to show";
}
}
</script>
</head>
<body>
<p id="paragraph" style="color: green;">Sample Paragraph</p>
<form action="">
<p>
<input type="button" value="Show first attribute name and value"
onclick="listAttributes();">
<input id="result" type="text" value="">
</p>
</form>
</body>
</html>
Specifications
Specification |
---|
DOM Standard # dom-element-attributes |
Browser compatibility
BCD tables only load in the browser
See also
NamedNodeMap
, the interface of the returned object- Cross-browser compatibility considerations: on quirksmode