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(attName);

result

holds the return value true or false.

attName

is a string representing the name of the attribute.

Example

// check that the attribute exists before setting a value 
var d = document.getElementById("div1"); 

if (d.hasAttribute("align")) { 
  d.setAttribute("align", "center"); 
}

Notes

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.	Recommendation	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.	Recommendation	Initial definition.

Browser compatibility