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.
js
getNamedItem(name) [name]
nameA string with the name of the desired attribute.
An Attr corresponding to the name given in parameter, or null if none has been found.
html
<pre test="test"></pre>
js
const pre = document.querySelector("pre"); const attrMap = pre.attributes; const value = attrMap.getNamedItem("test").value; pre.textContent = `The 'test' attribute contains ${value}. And 'boum' has ${attrMap["boum"] ? "been" : "not been"} found.`;
| Specification |
|---|
| DOM Standard # dom-namednodemap-getnameditem |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
getNamedItem |
1 | 12 | 1 | 6 | ≤12.1 | 1 | 4.4 | 18 | 4 | ≤12.1 | 1 | 1.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/NamedNodeMap/getNamedItem