Web/API/Element/hasAttribute

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 or false.

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
DOMThe 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 SpecificationThe 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 SpecificationThe 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.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
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

Element.hasAttribute() by Mozilla Contributors is licensed under CC-BY-SA 2.5.