This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The removeNamedItem() method of the NamedNodeMap interface removes the Attr corresponding to the given name from the map.
removeNamedItem(attrName)
attrNameThe name of the attribute to remove from the map.
The removed Attr.
NotFoundError DOMException
Thrown if there is no attribute with the given name.
<pre test="testValue"></pre>
const pre = document.querySelector("pre");
const attrMap = pre.attributes;
let result = `The 'test' attribute initially contains '${attrMap["test"].value}'.\n`;
result += "We remove it.\n\n";
attrMap.removeNamedItem("test");
result += attrMap.getNamedItem("test")
? "And 'test' still exists."
: "And 'test' is no more to be found.";
pre.textContent = result;
| Specification |
|---|
| DOM> # dom-namednodemap-removenameditem> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
removeNamedItem |
1 | 12 | 1 | ≤12.1 | 1 | 18 | 4 | ≤12.1 | 1 | 1.0 | 4.4 | 1 |
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https://developer.mozilla.org/en-US/docs/Web/API/NamedNodeMap/removeNamedItem