NamedNodeMap: getNamedItem() method
{{APIRef("DOM")}}
The getNamedItem()
method of the {{domxref("NamedNodeMap")}}
interface returns the {{domxref("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 tomyMap.getNamedItem(str)
wherestr
is a string.
Syntax
getNamedItem(name)
[name]
Parameters
name
- : A string with the name of the desired attribute.
Return value
An {{domxref("Attr")}}
corresponding to the name
given in parameter, or null
if none has been found.
Example
<pre test="test"></pre>
const pre = document.querySelector("pre");
const attrMap = pre.attributes;
const value = attrMap.getNamedItem("test").value;
pre.textContent = `The 'test' attribute contains ${value}.
And 'foo' has ${attrMap["foo"] ? "been" : "not been"} found.`;
{{EmbedLiveSample("Example", "100%", 80)}}
Specifications
{{Specifications}}
Browser compatibility
{{Compat}}