This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The Element.hasAttribute() method returns a Boolean value indicating whether the specified element has the specified attribute or not.
hasAttribute(name)
nameis a string representing the name of the attribute.
A boolean.
const foo = document.getElementById("foo");
if (foo.hasAttribute("bar")) {
// do something
}
| Specification |
|---|
| DOM> # ref-for-dom-element-hasattribute①> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
hasAttribute |
1 | 12 | 1 | 8 | 1 | 18 | 4 | 10.1 | 1 | 1.0 | 4.4 | 1 |
Element.hasAttributes()Element.getAttribute()Element.setAttribute()Element.removeAttribute()Element.toggleAttribute()
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https://developer.mozilla.org/en-US/docs/Web/API/Element/hasAttribute