Element.toggleAttribute()

The toggleAttribute() method of the Element interface toggles a Boolean attribute (removing it if it is present and adding it if it is not present) on the given element.

A DOMString specifying the name of the attribute to be toggled. The attribute name is automatically converted to all lower-case when toggleAttribute() is called on an HTML element in an HTML document.

force Optional

A boolean value which has the following effects:

if not specified at all, the toggleAttribute method "toggles" the attribute named name — removing it if it is present, or else adding it if it is not present
if true, the toggleAttribute method adds an attribute named name
if false, the toggleAttribute method removes the attribute named name

Return value

true if attribute name is eventually present, and false otherwise.

Exceptions

InvalidCharacterError DOMException: The specified attribute name contains one or more characters which are not valid in attribute names.

Example

In the following example, toggleAttribute() is used to toggle the disabled attribute of an <input>.

HTML

<input value="text">
<button>toggleAttribute("disabled")</button>

JavaScript

var button = document.querySelector("button");
var input = document.querySelector("input");

button.addEventListener("click", function(){
  input.toggleAttribute("disabled");
});

Result

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`	-

Polyfill

if (!Element.prototype.toggleAttribute) {
  Element.prototype.toggleAttribute = function(name, force) {
    if(force !== void 0) force = !!force

    if (this.hasAttribute(name)) {
      if (force) return true;

      this.removeAttribute(name);
      return false;
    }
    if (force === false) return false;

    this.setAttribute(name, "");
    return true;
  };
}

Specifications

Specification
DOM Standard # ref-for-dom-element-toggleattribute①

Browser compatibility

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