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    HTMLSelectElement

    The HTMLSelectElement interface represents a <select> HTML Element. These elements also share all of the properties and methods of other HTML elements via the HTMLElement interface.

    Properties

    This interface inherits the properties of HTMLElement, and of Element and Node.

    HTMLSelectElement.autofocus
    Is a Boolean that reflects the autofocus HTML attribute, which indicates whether the control should have input focus when the page loads, unless the user overrides it, for example by typing in a different control. Only one form-associated element in a document can have this attribute specified.
    HTMLSelectElement.disabled
    Is a Boolean that reflects the disabled HTML attribute, which indicates whether the control is disabled. If it is disabled, it does not accept clicks.
    HTMLSelectElement.form Read only
    Returns a HTMLFormElement representing the form that this element is associated with. If this element is a descendant of a form element, then this attribute is the ID of that form element. If the element is not a descendant of a form element, then the attribute can be the ID of any form element in the same document.
    HTMLSelectElement.labels Read only
    Returns a NodeList containing the list of label elements associated with this select element.
    HTMLSelectElement.length
    Is an unsigned long representing the number of <option> elements in this select element.
    HTMLSelectElement.multiple
    Is a Boolean that reflects the multiple HTML attribute, which indicates whether multiple items can be selected.
    HTMLSelectElement.name
    Is a DOMString that reflects the name HTML attribute, containing the name of this control used by servers and DOM search functions.
    HTMLSelectElement.options Read only
    Returns a HTMLOptionsCollection containing the set of <option> elements contained by this element.
    HTMLSelectElement.required
    Is a Boolean that reflects the required HTML attribute, which indicates whether the user is required to select a value before submitting the form.
    HTMLSelectElement.selectedIndex Read only
    Returns a long that represents the index of the first selected <option> element. The value -1 is returned if no element is selected.
    HTMLSelectElement.selectedOptions Read only
    Returns a live HTMLCollection containing the set of options that are selected.
    HTMLSelectElement.size
    Is a long that reflects the size HTML attribute, which contains the number of visible items in the control. The default is 1, unless multiple is true, in which case it is 4.
    HTMLSelectElement.type Read only
    Returns a DOMString the form control's type. When multiple is true, it returns "select-multiple"; otherwise, it returns "select-one".
    HTMLSelectElement.validationMessage Read only
    Returns a DOMString containing a localized message that describes the validation constraints that the control does not satisfy (if any). This attribute is the empty string if the control is not a candidate for constraint validation (willValidate is false), or it satisfies its constraints.
    HTMLSelectElement.validity Read only
    Returns a ValidityState representing the validity state that this control is in.
    HTMLSelectElement.value
    Is a DOMString with the value of this form control, that is, of the first selected option.
    HTMLSelectElement.willValidateRead only
    Is a Boolean that indicates whether the button is a candidate for constraint validation. It is false if any conditions bar it from constraint validation.

    Methods

    This interface inherits the methods of HTMLElement, and of Element and Node.

    HTMLSelectElement.add()
    Adds an element to the collection of option elements for this select element.
    HTMLSelectElement.blur()
    Removes input focus from this element. This method is now implemented on HTMLElement.
    HTMLSelectElement.checkValidity()
    Checks whether the element has any constraints and whether it satisfies them. If the element fails its constraints, the browser fires a cancelable invalid event at the element (and returns false).
    HTMLSelectElement.focus()
    Gives input focus to this element. This method is now implemented on HTMLElement.
    HTMLSelectElement.item()
    Gets an item from the options collection for this <select> element. You can also access an item by specifying the index in array-style brackets or parentheses, without calling this method explicitly.
    HTMLSelectElement.namedItem()
    Gets the item in the options collection with the specified name. The name string can match either the id or the name attribute of an option node. You can also access an item by specifying the name in array-style brackets or parentheses, without calling this method explicitly.
    HTMLSelectElement.remove()
    Removes the element at the specified index from the options collection for this select element.
    HTMLSelectElement.setCustomValidity()
    Sets the custom validity message for the selection element to the specified message. Use the empty string to indicate that the element does not have a custom validity error.

    Example

    Get information about the selected option

    /* assuming we have the following HTML
    <select id='s'>
        <option>First</option>
        <option selected>Second</option>
        <option>Third</option>
    </select>
    */
    
    var select = document.getElementById('s');
    
    // return the index of the selected option
    alert(select.selectedIndex)// 1
    
    // return the value of the selected option
    alert(select.options[select.selectedIndex].value) // Second
    

    Specifications

    Specification Status Comment
    WHATWG HTML Living Standard
    The definition of 'HTMLSelectElement' in that specification.
    Living Standard Since the latest snapshot, HTML5, it adds the autocomplete property and the reportValidity() method.
    HTML5
    The definition of 'HTMLSelectElement' in that specification.
    Recommendation Is a snapshot of WHATWG HTML Living Standard.
    It adds the autofocus, form, required, labels, selectedOptions, willValidate, validity and validationMessage properties.
    The tabindex property and the blur() and focus() methods have been moved to HTMLElement.
    The methods item(), namedItem(), checkValidity() and setCustomValidity().
    Document Object Model (DOM) Level 2 HTML Specification
    The definition of 'HTMLSelectElement' in that specification.
    Recommendation options now returns an HTMLOptionsCollection.
    length now returns an unsigned long.
    Document Object Model (DOM) Level 1 Specification
    The definition of 'HTMLSelectElement' in that specification.
    Recommendation Initial definition.

    Browser compatibility

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
    Basic support 1.0 1.0 (1.7 or earlier) 1.0 1.0 1.0
    item() and namedItem() (Yes) 4.0 (2.0) ? (Yes) (Yes)
    setCustomValidity(), checkValidity(), willValidate, validationMessage, validity (Yes) 4.0 (2.0) ? (Yes) ?
    selectedOptions (Yes) 26 (26) ? (Yes) (Yes)
    labels (Yes) Unimplemented (see bug 556743) ? (Yes) (Yes)
    Feature Android Chrome Firefox Mobile (Gecko) Firefox OS IE Phone Opera Mobile Safari Mobile
    Basic support 1.0 1.0 1.0 (1) 1.0 1.0 1.0 1.0
    item() and namedItem() ? ? 4.0 (2.0) 1.0 ? ? (Yes)
    setCustomValidity(), checkValidity(), willValidate, validationMessage, validity ? ? 4.0 (2.0) 1.0 ? ? ?
    selectedOptions ? ? 26.0 (26) 1.2 ? ? (Yes)
    labels ? ? Unimplemented (see bug 556743) Unimplemented (see bug 556743) ? ? (Yes)

    See also

    • The <select> HTML element, implementing this interface.
     

    Document Tags and Contributors

    Last updated by: fscholz,
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