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
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

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
hasAttributeChrome Full support 1Edge Full support 12Firefox Full support 1IE Full support 8Opera Full support 8Safari Full support 6WebView Android Full support 1Chrome Android Full support 18Firefox Android Full support 4Opera Android Full support 10.1Safari iOS Full support 6Samsung Internet Android Full support 1.0

Legend

Full support  
Full support