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    Interface ElementInternals

    The ElementInternals interface of the Document Object Model gives web developers a way to allow custom elements to fully participate in HTML forms.

    MDN Reference

    interface ElementInternals {
        ariaActiveDescendantElement: Element | null;
        ariaAtomic: string | null;
        ariaAutoComplete: string | null;
        ariaBrailleLabel: string | null;
        ariaBrailleRoleDescription: string | null;
        ariaBusy: string | null;
        ariaChecked: string | null;
        ariaColCount: string | null;
        ariaColIndex: string | null;
        ariaColIndexText: string | null;
        ariaColSpan: string | null;
        ariaControlsElements: readonly Element[] | null;
        ariaCurrent: string | null;
        ariaDescribedByElements: readonly Element[] | null;
        ariaDescription: string | null;
        ariaDetailsElements: readonly Element[] | null;
        ariaDisabled: string | null;
        ariaErrorMessageElements: readonly Element[] | null;
        ariaExpanded: string | null;
        ariaFlowToElements: readonly Element[] | null;
        ariaHasPopup: string | null;
        ariaHidden: string | null;
        ariaInvalid: string | null;
        ariaKeyShortcuts: string | null;
        ariaLabel: string | null;
        ariaLabelledByElements: readonly Element[] | null;
        ariaLevel: string | null;
        ariaLive: string | null;
        ariaModal: string | null;
        ariaMultiLine: string | null;
        ariaMultiSelectable: string | null;
        ariaOrientation: string | null;
        ariaOwnsElements: readonly Element[] | null;
        ariaPlaceholder: string | null;
        ariaPosInSet: string | null;
        ariaPressed: string | null;
        ariaReadOnly: string | null;
        ariaRelevant: string | null;
        ariaRequired: string | null;
        ariaRoleDescription: string | null;
        ariaRowCount: string | null;
        ariaRowIndex: string | null;
        ariaRowIndexText: string | null;
        ariaRowSpan: string | null;
        ariaSelected: string | null;
        ariaSetSize: string | null;
        ariaSort: string | null;
        ariaValueMax: string | null;
        ariaValueMin: string | null;
        ariaValueNow: string | null;
        ariaValueText: string | null;
        form: HTMLFormElement | null;
        labels: NodeList;
        role: string | null;
        shadowRoot: ShadowRoot | null;
        states: CustomStateSet;
        validationMessage: string;
        validity: ValidityState;
        willValidate: boolean;
        checkValidity(): boolean;
        reportValidity(): boolean;
        setFormValue(
            value: string | FormData | File | null,
            state?: string | FormData | File | null,
        ): void;
        setValidity(
            flags?: ValidityStateFlags,
            message?: string,
            anchor?: HTMLElement,
        ): void;
    }

    Hierarchy (View Summary)

    Index

    Properties

    ariaActiveDescendantElement ariaAtomic ariaAutoComplete ariaBrailleLabel ariaBrailleRoleDescription ariaBusy ariaChecked ariaColCount ariaColIndex ariaColIndexText ariaColSpan ariaControlsElements ariaCurrent ariaDescribedByElements ariaDescription ariaDetailsElements ariaDisabled ariaErrorMessageElements ariaExpanded ariaFlowToElements ariaHasPopup ariaHidden ariaInvalid ariaKeyShortcuts ariaLabel ariaLabelledByElements ariaLevel ariaLive ariaModal ariaMultiLine ariaMultiSelectable ariaOrientation ariaOwnsElements ariaPlaceholder ariaPosInSet ariaPressed ariaReadOnly ariaRelevant ariaRequired ariaRoleDescription ariaRowCount ariaRowIndex ariaRowIndexText ariaRowSpan ariaSelected ariaSetSize ariaSort ariaValueMax ariaValueMin ariaValueNow ariaValueText form labels role shadowRoot states validationMessage validity willValidate

    Methods

    checkValidity reportValidity setFormValue setValidity

    Properties

    ariaActiveDescendantElement: Element | null

    MDN Reference

    ariaAtomic: string | null

    MDN Reference

    ariaAutoComplete: string | null

    MDN Reference

    ariaBrailleLabel: string | null

    MDN Reference

    ariaBrailleRoleDescription: string | null

    MDN Reference

    ariaBusy: string | null

    MDN Reference

    ariaChecked: string | null

    MDN Reference

    ariaColCount: string | null

    MDN Reference

    ariaColIndex: string | null

    MDN Reference

    ariaColIndexText: string | null

    MDN Reference

    ariaColSpan: string | null

    MDN Reference

    ariaControlsElements: readonly Element[] | null

    MDN Reference

    ariaCurrent: string | null

    MDN Reference

    ariaDescribedByElements: readonly Element[] | null

    MDN Reference

    ariaDescription: string | null

    MDN Reference

    ariaDetailsElements: readonly Element[] | null

    MDN Reference

    ariaDisabled: string | null

    MDN Reference

    ariaErrorMessageElements: readonly Element[] | null

    MDN Reference

    ariaExpanded: string | null

    MDN Reference

    ariaFlowToElements: readonly Element[] | null

    MDN Reference

    ariaHasPopup: string | null

    MDN Reference

    ariaHidden: string | null

    MDN Reference

    ariaInvalid: string | null

    MDN Reference

    ariaKeyShortcuts: string | null

    MDN Reference

    ariaLabel: string | null

    MDN Reference

    ariaLabelledByElements: readonly Element[] | null

    MDN Reference

    ariaLevel: string | null

    MDN Reference

    ariaLive: string | null

    MDN Reference

    ariaModal: string | null

    MDN Reference

    ariaMultiLine: string | null

    MDN Reference

    ariaMultiSelectable: string | null

    MDN Reference

    ariaOrientation: string | null

    MDN Reference

    ariaOwnsElements: readonly Element[] | null

    MDN Reference

    ariaPlaceholder: string | null

    MDN Reference

    ariaPosInSet: string | null

    MDN Reference

    ariaPressed: string | null

    MDN Reference

    ariaReadOnly: string | null

    MDN Reference

    ariaRelevant: string | null

    MDN Reference

    ariaRequired: string | null

    MDN Reference

    ariaRoleDescription: string | null

    MDN Reference

    ariaRowCount: string | null

    MDN Reference

    ariaRowIndex: string | null

    MDN Reference

    ariaRowIndexText: string | null

    MDN Reference

    ariaRowSpan: string | null

    MDN Reference

    ariaSelected: string | null

    MDN Reference

    ariaSetSize: string | null

    MDN Reference

    ariaSort: string | null

    MDN Reference

    ariaValueMax: string | null

    MDN Reference

    ariaValueMin: string | null

    MDN Reference

    ariaValueNow: string | null

    MDN Reference

    ariaValueText: string | null

    MDN Reference

    form: HTMLFormElement | null

    The form read-only property of the ElementInternals interface returns the HTMLFormElement associated with this element.

    MDN Reference

    labels: NodeList

    The labels read-only property of the ElementInternals interface returns the labels associated with the element.

    MDN Reference

    role: string | null

    MDN Reference

    shadowRoot: ShadowRoot | null

    The shadowRoot read-only property of the ElementInternals interface returns the ShadowRoot for this element.

    MDN Reference

    states: CustomStateSet

    The states read-only property of the ElementInternals interface returns a CustomStateSet representing the possible states of the custom element.

    MDN Reference

    validationMessage: string

    The validationMessage read-only property of the ElementInternals interface returns the validation message for the element.

    MDN Reference

    validity: ValidityState

    The validity read-only property of the ElementInternals interface returns a ValidityState object which represents the different validity states the element can be in, with respect to constraint validation.

    MDN Reference

    willValidate: boolean

    The willValidate read-only property of the ElementInternals interface returns true if the element is a submittable element that is a candidate for constraint validation.

    MDN Reference

    Methods

    • The checkValidity() method of the ElementInternals interface checks if the element meets any constraint validation rules applied to it.

      MDN Reference

      Returns boolean

    • The reportValidity() method of the ElementInternals interface checks if the element meets any constraint validation rules applied to it.

      MDN Reference

      Returns boolean

    • The setFormValue() method of the ElementInternals interface sets the element's submission value and state, communicating these to the user agent.

      MDN Reference

      Parameters

      • value: string | FormData | File | null
      • Optionalstate: string | FormData | File | null

      Returns void

    • The setValidity() method of the ElementInternals interface sets the validity of the element.

      MDN Reference

      Parameters

      Returns void

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