Baseline Widely available
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.
getNamedItem(name)
[name]
name
A string with the name of the desired attribute.
An Attr corresponding to the name given in parameter, or null if none has been found.
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.`;
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