NamedNodeMap.getNamedItem()
The getNamedItem()
method of the NamedNodeMap
interface returns the Attr
corresponding to the given name, or null
if there is no corresponding attribute.
Note: This method is also called when you use the operator []
syntax.
So, myMap[str]
is equivalent to myMap.getNamedItem(str)
where str
is a string.
Syntax
getNamedItem(name);
[name];
Parameters
name
-
A string with the name of the desired attribute.
Return value
An Attr
corresponding to the name
given in parameter, or null
if none has been found.
Example
<pre test="test"></pre>
const pre = document.getElementsByTagName("pre")[0];
const attrMap = pre.attributes;
let result = "The `test` attribute contains " + attrMap.getNamedItem("test").value + "\n";
if (attrMap["boum"]) {
result += "And `boum` has been found.";
}
else {
result += "And `boum` has not been found.";
}
pre.textContent = result;
Specification
Specification |
---|
DOM Standard # dom-namednodemap-getnameditem |
Browser compatibility
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