The Document.createAttribute() method creates a new attribute node, and returns it. The object created a node implementing the Attr interface. The DOM does not enforce what sort of attributes can be added to a particular element in this manner.
Note: The string given in parameter is converted to lowercase.
createAttribute(name)
name is a string containing the name of the attribute.A Attr node.
InvalidCharacterError
DOMException
Thrown if the name value is not a valid XML name; for example, it starts with a number, hyphen, or period, or contains characters other than alphanumeric characters, underscores, hyphens, or periods.
var node = document.getElementById("div1"); var a = document.createAttribute("my_attrib"); a.value = "newVal"; node.setAttributeNode(a); console.log(node.getAttribute("my_attrib")); // "newVal"
| Specification |
|---|
| DOM Standard # dom-document-createattribute |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
createAttribute |
1
|
12
|
44
1-44
The parameter was not converted to its lowercase variant.
|
6
|
≤12.1
|
1
|
1
|
18
|
44
4-44
The parameter was not converted to its lowercase variant.
|
≤12.1
|
1
|
1.0
|
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https://developer.mozilla.org/en-US/docs/Web/API/Document/createAttribute
| Name | Web APIs |
| Version | |
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| Last Updated | 2022-04-27T09:33:08Z |