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 YesEdge Full support 12Firefox Full support YesIE Full support YesOpera Full support YesSafari Full support 6WebView Android Full support YesChrome Android Full support YesFirefox Android Full support YesOpera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yes

Legend

Full support  
Full support