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    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

    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.
    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

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
    Basic support (Yes) (Yes) [1] 8.0 (Yes) (Yes)
    Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
    Basic support (Yes) (Yes) [1] (Yes) (Yes) (Yes)

     

    Document Tags and Contributors

    Last updated by: NicBright,
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