The Element.hasAttribute()
method returns a Boolean value indicating whether the specified element has the specified attribute or not.
Syntax
var result = element.hasAttribute(name);
result
- holds the return value
true
orfalse
. name
- is a string representing the name of the attribute.
Example
var foo = document.getElementById("foo"); if (foo.hasAttribute("bar")) { // do something }
Polyfill
;(function(prototype) { prototype.hasAttribute = prototype.hasAttribute || function(name) { return !!(this.attributes[name] && this.attributes[name].specified); } })(Element.prototype);
Notes
DOM methods dealing with element's attributes:
Not namespace-aware, most commonly used methods | Namespace-aware variants (DOM Level 2) | DOM Level 1 methods for dealing with Attr nodes directly (seldom used) |
DOM Level 2 namespace-aware methods for dealing with Attr nodes directly (seldom used) |
---|---|---|---|
setAttribute (DOM 1) |
setAttributeNS |
setAttributeNode |
setAttributeNodeNS |
getAttribute (DOM 1) |
getAttributeNS |
getAttributeNode |
getAttributeNodeNS |
hasAttribute (DOM 2) |
hasAttributeNS |
- | - |
removeAttribute (DOM 1) |
removeAttributeNS |
removeAttributeNode |
- |
Specifications
Specification | Status | Comment |
---|---|---|
DOM The definition of 'Element.hasAttribute()' in that specification. |
Living Standard | From Document Object Model (DOM) Level 3 Core Specification, moved from Node to Element |
Document Object Model (DOM) Level 3 Core Specification The definition of 'Element.hasAttribute()' in that specification. |
Obsolete | No change from Document Object Model (DOM) Level 2 Core Specification |
Document Object Model (DOM) Level 2 Core Specification The definition of 'Element.hasAttribute()' in that specification. |
Obsolete | Initial definition. |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
hasAttribute | Chrome Full support 1 | Edge Full support 12 | Firefox Full support 1 | IE Full support 8 | Opera Full support 8 | Safari Full support 6 | WebView Android Full support 1 | Chrome Android Full support 18 | Firefox Android Full support 4 | Opera Android Full support 10.1 | Safari iOS Full support 6 | Samsung Internet Android Full support 1.0 |
Legend
- Full support
- Full support