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Element

Element is the most general base class from which all objects in a Document inherit. It only has methods and properties common to all kinds of elements. More specific classes inherit from Element.

MDN Reference

interface Element {
    charging?: boolean;
    chargingTime?: number;
    dischargingTime?: number;
    level?: number;
    ariaAtomic: null | string;
    ariaAutoComplete: null | string;
    ariaBrailleLabel: null | string;
    ariaBrailleRoleDescription: null | string;
    ariaBusy: null | string;
    ariaChecked: null | string;
    ariaColCount: null | string;
    ariaColIndex: null | string;
    ariaColIndexText: null | string;
    ariaColSpan: null | string;
    ariaCurrent: null | string;
    ariaDescription: null | string;
    ariaDisabled: null | string;
    ariaExpanded: null | string;
    ariaHasPopup: null | string;
    ariaHidden: null | string;
    ariaInvalid: null | string;
    ariaKeyShortcuts: null | string;
    ariaLabel: null | string;
    ariaLevel: null | string;
    ariaLive: null | string;
    ariaModal: null | string;
    ariaMultiLine: null | string;
    ariaMultiSelectable: null | string;
    ariaOrientation: null | string;
    ariaPlaceholder: null | string;
    ariaPosInSet: null | string;
    ariaPressed: null | string;
    ariaReadOnly: null | string;
    ariaRelevant: null | string;
    ariaRequired: null | string;
    ariaRoleDescription: null | string;
    ariaRowCount: null | string;
    ariaRowIndex: null | string;
    ariaRowIndexText: null | string;
    ariaRowSpan: null | string;
    ariaSelected: null | string;
    ariaSetSize: null | string;
    ariaSort: null | string;
    ariaValueMax: null | string;
    ariaValueMin: null | string;
    ariaValueNow: null | string;
    ariaValueText: null | string;
    role: null | string;
    animate(
        keyframes: null | Keyframe[] | PropertyIndexedKeyframes,
        options?: number | KeyframeAnimationOptions,
    ): Animation;
    getAnimations(options?: GetAnimationsOptions): Animation[];
    after(...nodes: (string | Node)[]): void;
    before(...nodes: (string | Node)[]): void;
    remove(): void;
    replaceWith(...nodes: (string | Node)[]): void;
    attributes: NamedNodeMap;
    get classList(): DOMTokenList;
    set classList(value: string): void;
    className: string;
    clientHeight: number;
    clientLeft: number;
    clientTop: number;
    clientWidth: number;
    currentCSSZoom: number;
    id: string;
    innerHTML: string;
    localName: string;
    namespaceURI: null | string;
    onfullscreenchange: null | ((this: Element, ev: Event) => any);
    onfullscreenerror: null | ((this: Element, ev: Event) => any);
    outerHTML: string;
    ownerDocument: Document;
    get part(): DOMTokenList;
    set part(value: string): void;
    prefix: null | string;
    scrollHeight: number;
    scrollLeft: number;
    scrollTop: number;
    scrollWidth: number;
    shadowRoot: null | ShadowRoot;
    slot: string;
    tagName: string;
    attachShadow(init: ShadowRootInit): ShadowRoot;
    checkVisibility(options?: CheckVisibilityOptions): boolean;
    closest<K extends keyof HTMLElementTagNameMap>(
        selector: K,
    ): null | HTMLElementTagNameMap[K];
    closest<K extends keyof SVGElementTagNameMap>(
        selector: K,
    ): null | SVGElementTagNameMap[K];
    closest<K extends keyof MathMLElementTagNameMap>(
        selector: K,
    ): null | MathMLElementTagNameMap[K];
    closest<E extends Element = Element>(selectors: string): null | E;
    computedStyleMap(): StylePropertyMapReadOnly;
    getAttribute(qualifiedName: string): null | string;
    getAttributeNS(namespace: null | string, localName: string): null | string;
    getAttributeNames(): string[];
    getAttributeNode(qualifiedName: string): null | Attr;
    getAttributeNodeNS(
        namespace: null | string,
        localName: string,
    ): null | Attr;
    getBoundingClientRect(): DOMRect;
    getClientRects(): DOMRectList;
    getElementsByClassName(classNames: string): HTMLCollectionOf<Element>;
    getElementsByTagName<K extends keyof HTMLElementTagNameMap>(
        qualifiedName: K,
    ): HTMLCollectionOf<HTMLElementTagNameMap[K]>;
    getElementsByTagName<K extends keyof SVGElementTagNameMap>(
        qualifiedName: K,
    ): HTMLCollectionOf<SVGElementTagNameMap[K]>;
    getElementsByTagName<K extends keyof MathMLElementTagNameMap>(
        qualifiedName: K,
    ): HTMLCollectionOf<MathMLElementTagNameMap[K]>;
    getElementsByTagName<K extends keyof HTMLElementDeprecatedTagNameMap>(
        qualifiedName: K,
    ): HTMLCollectionOf<HTMLElementDeprecatedTagNameMap[K]>;
    getElementsByTagName(qualifiedName: string): HTMLCollectionOf<Element>;
    getElementsByTagNameNS(
        namespaceURI: "http://www.w3.org/1999/xhtml",
        localName: string,
    ): HTMLCollectionOf<HTMLElement>;
    getElementsByTagNameNS(
        namespaceURI: "http://www.w3.org/2000/svg",
        localName: string,
    ): HTMLCollectionOf<SVGElement>;
    getElementsByTagNameNS(
        namespaceURI: "http://www.w3.org/1998/Math/MathML",
        localName: string,
    ): HTMLCollectionOf<MathMLElement>;
    getElementsByTagNameNS(
        namespace: null | string,
        localName: string,
    ): HTMLCollectionOf<Element>;
    getHTML(options?: GetHTMLOptions): string;
    hasAttribute(qualifiedName: string): boolean;
    hasAttributeNS(namespace: null | string, localName: string): boolean;
    hasAttributes(): boolean;
    hasPointerCapture(pointerId: number): boolean;
    insertAdjacentElement(
        where: InsertPosition,
        element: Element,
    ): null | Element;
    insertAdjacentHTML(position: InsertPosition, string: string): void;
    insertAdjacentText(where: InsertPosition, data: string): void;
    matches(selectors: string): boolean;
    releasePointerCapture(pointerId: number): void;
    removeAttribute(qualifiedName: string): void;
    removeAttributeNS(namespace: null | string, localName: string): void;
    removeAttributeNode(attr: Attr): Attr;
    requestFullscreen(options?: FullscreenOptions): Promise<void>;
    requestPointerLock(options?: PointerLockOptions): Promise<void>;
    scroll(options?: ScrollToOptions): void;
    scroll(x: number, y: number): void;
    scrollBy(options?: ScrollToOptions): void;
    scrollBy(x: number, y: number): void;
    scrollIntoView(arg?: boolean | ScrollIntoViewOptions): void;
    scrollTo(options?: ScrollToOptions): void;
    scrollTo(x: number, y: number): void;
    setAttribute(qualifiedName: string, value: string): void;
    setAttributeNS(
        namespace: null | string,
        qualifiedName: string,
        value: string,
    ): void;
    setAttributeNode(attr: Attr): null | Attr;
    setAttributeNodeNS(attr: Attr): null | Attr;
    setHTMLUnsafe(html: string): void;
    setPointerCapture(pointerId: number): void;
    toggleAttribute(qualifiedName: string, force?: boolean): boolean;
    webkitMatchesSelector(selectors: string): boolean;
    addEventListener<K extends keyof ElementEventMap>(
        type: K,
        listener: (this: Element, ev: ElementEventMap[K]) => any,
        options?: boolean | AddEventListenerOptions,
    ): void;
    addEventListener(
        type: string,
        listener: EventListenerOrEventListenerObject,
        options?: boolean | AddEventListenerOptions,
    ): void;
    removeEventListener<K extends keyof ElementEventMap>(
        type: K,
        listener: (this: Element, ev: ElementEventMap[K]) => any,
        options?: boolean | EventListenerOptions,
    ): void;
    removeEventListener(
        type: string,
        listener: EventListenerOrEventListenerObject,
        options?: boolean | EventListenerOptions,
    ): void;
    dispatchEvent(event: Event): boolean;
    baseURI: string;
    childNodes: NodeListOf<ChildNode>;
    firstChild: null | ChildNode;
    isConnected: boolean;
    lastChild: null | ChildNode;
    nextSibling: null | ChildNode;
    nodeName: string;
    nodeType: number;
    nodeValue: null | string;
    parentElement: null | HTMLElement;
    parentNode: null | ParentNode;
    previousSibling: null | ChildNode;
    textContent: null | string;
    appendChild<T extends Node>(node: T): T;
    cloneNode(subtree?: boolean): Node;
    compareDocumentPosition(other: Node): number;
    contains(other: null | Node): boolean;
    getRootNode(options?: GetRootNodeOptions): Node;
    hasChildNodes(): boolean;
    insertBefore<T extends Node>(node: T, child: null | Node): T;
    isDefaultNamespace(namespace: null | string): boolean;
    isEqualNode(otherNode: null | Node): boolean;
    isSameNode(otherNode: null | Node): boolean;
    lookupNamespaceURI(prefix: null | string): null | string;
    lookupPrefix(namespace: null | string): null | string;
    normalize(): void;
    removeChild<T extends Node>(child: T): T;
    replaceChild<T extends Node>(node: Node, child: T): T;
    ELEMENT_NODE: 1;
    ATTRIBUTE_NODE: 2;
    TEXT_NODE: 3;
    CDATA_SECTION_NODE: 4;
    ENTITY_REFERENCE_NODE: 5;
    ENTITY_NODE: 6;
    PROCESSING_INSTRUCTION_NODE: 7;
    COMMENT_NODE: 8;
    DOCUMENT_NODE: 9;
    DOCUMENT_TYPE_NODE: 10;
    DOCUMENT_FRAGMENT_NODE: 11;
    NOTATION_NODE: 12;
    DOCUMENT_POSITION_DISCONNECTED: 1;
    DOCUMENT_POSITION_PRECEDING: 2;
    DOCUMENT_POSITION_FOLLOWING: 4;
    DOCUMENT_POSITION_CONTAINS: 8;
    DOCUMENT_POSITION_CONTAINED_BY: 16;
    DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC: 32;
    nextElementSibling: null | Element;
    previousElementSibling: null | Element;
    childElementCount: number;
    children: HTMLCollection;
    firstElementChild: null | Element;
    lastElementChild: null | Element;
    append(...nodes: (string | Node)[]): void;
    prepend(...nodes: (string | Node)[]): void;
    querySelector<K extends keyof HTMLElementTagNameMap>(
        selectors: K,
    ): null | HTMLElementTagNameMap[K];
    querySelector<K extends keyof SVGElementTagNameMap>(
        selectors: K,
    ): null | SVGElementTagNameMap[K];
    querySelector<K extends keyof MathMLElementTagNameMap>(
        selectors: K,
    ): null | MathMLElementTagNameMap[K];
    querySelector<K extends keyof HTMLElementDeprecatedTagNameMap>(
        selectors: K,
    ): null | HTMLElementDeprecatedTagNameMap[K];
    querySelector<E extends Element = Element>(selectors: string): null | E;
    querySelectorAll<K extends keyof HTMLElementTagNameMap>(
        selectors: K,
    ): NodeListOf<HTMLElementTagNameMap[K]>;
    querySelectorAll<K extends keyof SVGElementTagNameMap>(
        selectors: K,
    ): NodeListOf<SVGElementTagNameMap[K]>;
    querySelectorAll<K extends keyof MathMLElementTagNameMap>(
        selectors: K,
    ): NodeListOf<MathMLElementTagNameMap[K]>;
    querySelectorAll<K extends keyof HTMLElementDeprecatedTagNameMap>(
        selectors: K,
    ): NodeListOf<HTMLElementDeprecatedTagNameMap[K]>;
    querySelectorAll<E extends Element = Element>(
        selectors: string,
    ): NodeListOf<E>;
    replaceChildren(...nodes: (string | Node)[]): void;
    assignedSlot: null | HTMLSlotElement;
}

Hierarchy (View Summary)

Index

Properties

<internal>.Element.charging<internal>.Element.chargingTime<internal>.Element.dischargingTime<internal>.Element.level<internal>.Element.ariaAtomic<internal>.Element.ariaAutoComplete<internal>.Element.ariaBrailleLabel<internal>.Element.ariaBrailleRoleDescription<internal>.Element.ariaBusy<internal>.Element.ariaChecked<internal>.Element.ariaColCount<internal>.Element.ariaColIndex<internal>.Element.ariaColIndexText<internal>.Element.ariaColSpan<internal>.Element.ariaCurrent<internal>.Element.ariaDescription<internal>.Element.ariaDisabled<internal>.Element.ariaExpanded<internal>.Element.ariaHasPopup<internal>.Element.ariaHidden<internal>.Element.ariaInvalid<internal>.Element.ariaKeyShortcuts<internal>.Element.ariaLabel<internal>.Element.ariaLevel<internal>.Element.ariaLive<internal>.Element.ariaModal<internal>.Element.ariaMultiLine<internal>.Element.ariaMultiSelectable<internal>.Element.ariaOrientation<internal>.Element.ariaPlaceholder<internal>.Element.ariaPosInSet<internal>.Element.ariaPressed<internal>.Element.ariaReadOnly<internal>.Element.ariaRelevant<internal>.Element.ariaRequired<internal>.Element.ariaRoleDescription<internal>.Element.ariaRowCount<internal>.Element.ariaRowIndex<internal>.Element.ariaRowIndexText<internal>.Element.ariaRowSpan<internal>.Element.ariaSelected<internal>.Element.ariaSetSize<internal>.Element.ariaSort<internal>.Element.ariaValueMax<internal>.Element.ariaValueMin<internal>.Element.ariaValueNow<internal>.Element.ariaValueText<internal>.Element.role<internal>.Element.attributes<internal>.Element.className<internal>.Element.clientHeight<internal>.Element.clientLeft<internal>.Element.clientTop<internal>.Element.clientWidth<internal>.Element.currentCSSZoom<internal>.Element.id<internal>.Element.innerHTML<internal>.Element.localName<internal>.Element.namespaceURI<internal>.Element.onfullscreenchange<internal>.Element.onfullscreenerror<internal>.Element.outerHTML<internal>.Element.ownerDocument<internal>.Element.prefix<internal>.Element.scrollHeight<internal>.Element.scrollLeft<internal>.Element.scrollTop<internal>.Element.scrollWidth<internal>.Element.shadowRoot<internal>.Element.slot<internal>.Element.tagName<internal>.Element.baseURI<internal>.Element.childNodes<internal>.Element.firstChild<internal>.Element.isConnected<internal>.Element.lastChild<internal>.Element.nextSibling<internal>.Element.nodeName<internal>.Element.nodeType<internal>.Element.nodeValue<internal>.Element.parentElement<internal>.Element.parentNode<internal>.Element.previousSibling<internal>.Element.textContent<internal>.Element.ELEMENT_NODE<internal>.Element.ATTRIBUTE_NODE<internal>.Element.TEXT_NODE<internal>.Element.CDATA_SECTION_NODE<internal>.Element.ENTITY_REFERENCE_NODE<internal>.Element.ENTITY_NODE<internal>.Element.PROCESSING_INSTRUCTION_NODE<internal>.Element.COMMENT_NODE<internal>.Element.DOCUMENT_NODE<internal>.Element.DOCUMENT_TYPE_NODE<internal>.Element.DOCUMENT_FRAGMENT_NODE<internal>.Element.NOTATION_NODE<internal>.Element.DOCUMENT_POSITION_DISCONNECTED<internal>.Element.DOCUMENT_POSITION_PRECEDING<internal>.Element.DOCUMENT_POSITION_FOLLOWING<internal>.Element.DOCUMENT_POSITION_CONTAINS<internal>.Element.DOCUMENT_POSITION_CONTAINED_BY<internal>.Element.DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC<internal>.Element.nextElementSibling<internal>.Element.previousElementSibling<internal>.Element.childElementCount<internal>.Element.children<internal>.Element.firstElementChild<internal>.Element.lastElementChild<internal>.Element.assignedSlot

Accessors

Methods

<internal>.Element.animate<internal>.Element.getAnimations<internal>.Element.after<internal>.Element.before<internal>.Element.remove<internal>.Element.replaceWith<internal>.Element.attachShadow<internal>.Element.checkVisibility<internal>.Element.closest<internal>.Element.computedStyleMap<internal>.Element.getAttribute<internal>.Element.getAttributeNS<internal>.Element.getAttributeNames<internal>.Element.getAttributeNode<internal>.Element.getAttributeNodeNS<internal>.Element.getBoundingClientRect<internal>.Element.getClientRects<internal>.Element.getElementsByClassName<internal>.Element.getElementsByTagName<internal>.Element.getElementsByTagNameNS<internal>.Element.getHTML<internal>.Element.hasAttribute<internal>.Element.hasAttributeNS<internal>.Element.hasAttributes<internal>.Element.hasPointerCapture<internal>.Element.insertAdjacentElement<internal>.Element.insertAdjacentHTML<internal>.Element.insertAdjacentText<internal>.Element.matches<internal>.Element.releasePointerCapture<internal>.Element.removeAttribute<internal>.Element.removeAttributeNS<internal>.Element.removeAttributeNode<internal>.Element.requestFullscreen<internal>.Element.requestPointerLock<internal>.Element.scroll<internal>.Element.scrollBy<internal>.Element.scrollIntoView<internal>.Element.scrollTo<internal>.Element.setAttribute<internal>.Element.setAttributeNS<internal>.Element.setAttributeNode<internal>.Element.setAttributeNodeNS<internal>.Element.setHTMLUnsafe<internal>.Element.setPointerCapture<internal>.Element.toggleAttribute<internal>.Element.webkitMatchesSelector<internal>.Element.addEventListener<internal>.Element.removeEventListener<internal>.Element.dispatchEvent<internal>.Element.appendChild<internal>.Element.cloneNode<internal>.Element.compareDocumentPosition<internal>.Element.contains<internal>.Element.getRootNode<internal>.Element.hasChildNodes<internal>.Element.insertBefore<internal>.Element.isDefaultNamespace<internal>.Element.isEqualNode<internal>.Element.isSameNode<internal>.Element.lookupNamespaceURI<internal>.Element.lookupPrefix<internal>.Element.normalize<internal>.Element.removeChild<internal>.Element.replaceChild<internal>.Element.append<internal>.Element.prepend<internal>.Element.querySelector<internal>.Element.querySelectorAll<internal>.Element.replaceChildren

Properties

charging?: boolean
chargingTime?: number
dischargingTime?: number
level?: number
ariaAtomic: null | string
ariaAutoComplete: null | string
ariaBrailleLabel: null | string
ariaBrailleRoleDescription: null | string
ariaBusy: null | string
ariaChecked: null | string
ariaColCount: null | string
ariaColIndex: null | string
ariaColIndexText: null | string
ariaColSpan: null | string
ariaCurrent: null | string
ariaDescription: null | string
ariaDisabled: null | string
ariaExpanded: null | string
ariaHasPopup: null | string
ariaHidden: null | string
ariaInvalid: null | string
ariaKeyShortcuts: null | string
ariaLabel: null | string
ariaLevel: null | string
ariaLive: null | string
ariaModal: null | string
ariaMultiLine: null | string
ariaMultiSelectable: null | string
ariaOrientation: null | string
ariaPlaceholder: null | string
ariaPosInSet: null | string
ariaPressed: null | string
ariaReadOnly: null | string
ariaRelevant: null | string
ariaRequired: null | string
ariaRoleDescription: null | string
ariaRowCount: null | string
ariaRowIndex: null | string
ariaRowIndexText: null | string
ariaRowSpan: null | string
ariaSelected: null | string
ariaSetSize: null | string
ariaSort: null | string
ariaValueMax: null | string
ariaValueMin: null | string
ariaValueNow: null | string
ariaValueText: null | string
role: null | string
attributes: NamedNodeMap
className: string

Returns the value of element's class content attribute. Can be set to change it.

MDN Reference

clientHeight: number
clientLeft: number
clientTop: number
clientWidth: number
currentCSSZoom: number
id: string

Returns the value of element's id content attribute. Can be set to change it.

MDN Reference

innerHTML: string
localName: string

Returns the local name.

MDN Reference

namespaceURI: null | string

Returns the namespace.

MDN Reference

onfullscreenchange: null | ((this: Element, ev: Event) => any)
onfullscreenerror: null | ((this: Element, ev: Event) => any)
outerHTML: string
ownerDocument: Document

Returns the node document. Returns null for documents.

MDN Reference

prefix: null | string

Returns the namespace prefix.

MDN Reference

scrollHeight: number
scrollLeft: number
scrollTop: number
scrollWidth: number
shadowRoot: null | ShadowRoot

Returns element's shadow root, if any, and if shadow root's mode is "open", and null otherwise.

MDN Reference

slot: string

Returns the value of element's slot content attribute. Can be set to change it.

MDN Reference

tagName: string

Returns the HTML-uppercased qualified name.

MDN Reference

baseURI: string

Returns node's node document's document base URL.

MDN Reference

childNodes: NodeListOf<ChildNode>

Returns the children.

MDN Reference

firstChild: null | ChildNode

Returns the first child.

MDN Reference

isConnected: boolean

Returns true if node is connected and false otherwise.

MDN Reference

lastChild: null | ChildNode

Returns the last child.

MDN Reference

nextSibling: null | ChildNode

Returns the next sibling.

MDN Reference

nodeName: string

Returns a string appropriate for the type of node.

MDN Reference

nodeType: number

Returns the type of node.

MDN Reference

nodeValue: null | string
parentElement: null | HTMLElement

Returns the parent element.

MDN Reference

parentNode: null | ParentNode

Returns the parent.

MDN Reference

previousSibling: null | ChildNode

Returns the previous sibling.

MDN Reference

textContent: null | string
ELEMENT_NODE: 1

node is an element.

ATTRIBUTE_NODE: 2
TEXT_NODE: 3

node is a Text node.

CDATA_SECTION_NODE: 4

node is a CDATASection node.

ENTITY_REFERENCE_NODE: 5
ENTITY_NODE: 6
PROCESSING_INSTRUCTION_NODE: 7

node is a ProcessingInstruction node.

COMMENT_NODE: 8

node is a Comment node.

DOCUMENT_NODE: 9

node is a document.

DOCUMENT_TYPE_NODE: 10

node is a doctype.

DOCUMENT_FRAGMENT_NODE: 11

node is a DocumentFragment node.

NOTATION_NODE: 12
DOCUMENT_POSITION_DISCONNECTED: 1

Set when node and other are not in the same tree.

DOCUMENT_POSITION_PRECEDING: 2

Set when other is preceding node.

DOCUMENT_POSITION_FOLLOWING: 4

Set when other is following node.

DOCUMENT_POSITION_CONTAINS: 8

Set when other is an ancestor of node.

DOCUMENT_POSITION_CONTAINED_BY: 16

Set when other is a descendant of node.

DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC: 32
nextElementSibling: null | Element

Returns the first following sibling that is an element, and null otherwise.

MDN Reference

previousElementSibling: null | Element

Returns the first preceding sibling that is an element, and null otherwise.

MDN Reference

childElementCount: number
children: HTMLCollection

Returns the child elements.

MDN Reference

firstElementChild: null | Element

Returns the first child that is an element, and null otherwise.

MDN Reference

lastElementChild: null | Element

Returns the last child that is an element, and null otherwise.

MDN Reference

assignedSlot: null | HTMLSlotElement

Accessors

  • get classList(): DOMTokenList

    Allows for manipulation of element's class content attribute as a set of whitespace-separated tokens through a DOMTokenList object.

    MDN Reference

    Returns DOMTokenList

  • set classList(value: string): void

    Parameters

    • value: string

    Returns void

  • get part(): DOMTokenList

    Returns DOMTokenList

  • set part(value: string): void

    Parameters

    • value: string

    Returns void

Methods

Parameters

Returns Animation

Parameters

Returns Animation[]

Inserts nodes just after node, while replacing strings in nodes with equivalent Text nodes.

Throws a "HierarchyRequestError" DOMException if the constraints of the node tree are violated.

MDN Reference

Parameters

  • nodes: (string | Node)[]

Returns void

Inserts nodes just before node, while replacing strings in nodes with equivalent Text nodes.

Throws a "HierarchyRequestError" DOMException if the constraints of the node tree are violated.

MDN Reference

Parameters

  • nodes: (string | Node)[]

Returns void

Removes node.

MDN Reference

Returns void

Replaces node with nodes, while replacing strings in nodes with equivalent Text nodes.

Throws a "HierarchyRequestError" DOMException if the constraints of the node tree are violated.

MDN Reference

Parameters

  • nodes: (string | Node)[]

Returns void

Creates a shadow root for element and returns it.

MDN Reference

Parameters

Returns ShadowRoot

Parameters

Returns boolean

Returns the first (starting at element) inclusive ancestor that matches selectors, and null otherwise.

MDN Reference

Type Parameters

Parameters

  • selector: K

Returns null | HTMLElementTagNameMap[K]

Type Parameters

Parameters

  • selector: K

Returns null | SVGElementTagNameMap[K]

Type Parameters

Parameters

  • selector: K

Returns null | MathMLElementTagNameMap[K]

Type Parameters

Parameters

  • selectors: string

Returns null | E

Returns StylePropertyMapReadOnly

Returns element's first attribute whose qualified name is qualifiedName, and null if there is no such attribute otherwise.

MDN Reference

Parameters

  • qualifiedName: string

Returns null | string

Returns element's attribute whose namespace is namespace and local name is localName, and null if there is no such attribute otherwise.

MDN Reference

Parameters

  • namespace: null | string
  • localName: string

Returns null | string

Returns the qualified names of all element's attributes. Can contain duplicates.

MDN Reference

Returns string[]

Parameters

  • qualifiedName: string

Returns null | Attr

Parameters

  • namespace: null | string
  • localName: string

Returns null | Attr

Returns DOMRect

Returns DOMRectList

Returns a HTMLCollection of the elements in the object on which the method was invoked (a document or an element) that have all the classes given by classNames. The classNames argument is interpreted as a space-separated list of classes.

MDN Reference

Parameters

  • classNames: string

Returns HTMLCollectionOf<Element>

Type Parameters

Parameters

  • qualifiedName: K

Returns HTMLCollectionOf<HTMLElementTagNameMap[K]>

Type Parameters

Parameters

  • qualifiedName: K

Returns HTMLCollectionOf<SVGElementTagNameMap[K]>

Type Parameters

Parameters

  • qualifiedName: K

Returns HTMLCollectionOf<MathMLElementTagNameMap[K]>

Type Parameters

Parameters

  • qualifiedName: K

Returns HTMLCollectionOf<HTMLElementDeprecatedTagNameMap[K]>

Parameters

  • qualifiedName: string

Returns HTMLCollectionOf<Element>

Parameters

  • namespaceURI: "http://www.w3.org/1999/xhtml"
  • localName: string

Returns HTMLCollectionOf<HTMLElement>

Parameters

  • namespaceURI: "http://www.w3.org/2000/svg"
  • localName: string

Returns HTMLCollectionOf<SVGElement>

Parameters

  • namespaceURI: "http://www.w3.org/1998/Math/MathML"
  • localName: string

Returns HTMLCollectionOf<MathMLElement>

Parameters

  • namespace: null | string
  • localName: string

Returns HTMLCollectionOf<Element>

Parameters

Returns string

Returns true if element has an attribute whose qualified name is qualifiedName, and false otherwise.

MDN Reference

Parameters

  • qualifiedName: string

Returns boolean

Returns true if element has an attribute whose namespace is namespace and local name is localName.

MDN Reference

Parameters

  • namespace: null | string
  • localName: string

Returns boolean

Returns true if element has attributes, and false otherwise.

MDN Reference

Returns boolean

Parameters

  • pointerId: number

Returns boolean

Parameters

Returns null | Element

Parameters

Returns void

Parameters

Returns void

Returns true if matching selectors against element's root yields element, and false otherwise.

MDN Reference

Parameters

  • selectors: string

Returns boolean

Parameters

  • pointerId: number

Returns void

Removes element's first attribute whose qualified name is qualifiedName.

MDN Reference

Parameters

  • qualifiedName: string

Returns void

Removes element's attribute whose namespace is namespace and local name is localName.

MDN Reference

Parameters

  • namespace: null | string
  • localName: string

Returns void

Parameters

Returns Attr

Displays element fullscreen and resolves promise when done.

When supplied, options's navigationUI member indicates whether showing navigation UI while in fullscreen is preferred or not. If set to "show", navigation simplicity is preferred over screen space, and if set to "hide", more screen space is preferred. User agents are always free to honor user preference over the application's. The default value "auto" indicates no application preference.

MDN Reference

Parameters

Returns Promise<void>

Parameters

Returns Promise<void>

Parameters

Returns void

Parameters

  • x: number
  • y: number

Returns void

Parameters

Returns void

Parameters

  • x: number
  • y: number

Returns void

Parameters

Returns void

Parameters

Returns void

Parameters

  • x: number
  • y: number

Returns void

Sets the value of element's first attribute whose qualified name is qualifiedName to value.

MDN Reference

Parameters

  • qualifiedName: string
  • value: string

Returns void

Sets the value of element's attribute whose namespace is namespace and local name is localName to value.

MDN Reference

Parameters

  • namespace: null | string
  • qualifiedName: string
  • value: string

Returns void

Parameters

Returns null | Attr

Parameters

Returns null | Attr

Parameters

  • html: string

Returns void

Parameters

  • pointerId: number

Returns void

If force is not given, "toggles" qualifiedName, removing it if it is present and adding it if it is not present. If force is true, adds qualifiedName. If force is false, removes qualifiedName.

Returns true if qualifiedName is now present, and false otherwise.

MDN Reference

Parameters

  • qualifiedName: string
  • Optionalforce: boolean

Returns boolean

Parameters

  • selectors: string

Returns boolean

This is a legacy alias of matches.

MDN Reference

Appends an event listener for events whose type attribute value is type. The callback argument sets the callback that will be invoked when the event is dispatched.

The options argument sets listener-specific options. For compatibility this can be a boolean, in which case the method behaves exactly as if the value was specified as options's capture.

When set to true, options's capture prevents callback from being invoked when the event's eventPhase attribute value is BUBBLING_PHASE. When false (or not present), callback will not be invoked when event's eventPhase attribute value is CAPTURING_PHASE. Either way, callback will be invoked if event's eventPhase attribute value is AT_TARGET.

When set to true, options's passive indicates that the callback will not cancel the event by invoking preventDefault(). This is used to enable performance optimizations described in § 2.8 Observing event listeners.

When set to true, options's once indicates that the callback will only be invoked once after which the event listener will be removed.

If an AbortSignal is passed for options's signal, then the event listener will be removed when signal is aborted.

The event listener is appended to target's event listener list and is not appended if it has the same type, callback, and capture.

MDN Reference

Type Parameters

Parameters

Returns void

Appends an event listener for events whose type attribute value is type. The callback argument sets the callback that will be invoked when the event is dispatched.

The options argument sets listener-specific options. For compatibility this can be a boolean, in which case the method behaves exactly as if the value was specified as options's capture.

When set to true, options's capture prevents callback from being invoked when the event's eventPhase attribute value is BUBBLING_PHASE. When false (or not present), callback will not be invoked when event's eventPhase attribute value is CAPTURING_PHASE. Either way, callback will be invoked if event's eventPhase attribute value is AT_TARGET.

When set to true, options's passive indicates that the callback will not cancel the event by invoking preventDefault(). This is used to enable performance optimizations described in § 2.8 Observing event listeners.

When set to true, options's once indicates that the callback will only be invoked once after which the event listener will be removed.

If an AbortSignal is passed for options's signal, then the event listener will be removed when signal is aborted.

The event listener is appended to target's event listener list and is not appended if it has the same type, callback, and capture.

MDN Reference

Parameters

Returns void

Removes the event listener in target's event listener list with the same type, callback, and options.

MDN Reference

Type Parameters

Parameters

Returns void

Removes the event listener in target's event listener list with the same type, callback, and options.

MDN Reference

Parameters

Returns void

Dispatches a synthetic event event to target and returns true if either event's cancelable attribute value is false or its preventDefault() method was not invoked, and false otherwise.

MDN Reference

Parameters

Returns boolean

Type Parameters

Parameters

  • node: T

Returns T

Returns a copy of node. If deep is true, the copy also includes the node's descendants.

MDN Reference

Parameters

  • Optionalsubtree: boolean

Returns Node

Returns a bitmask indicating the position of other relative to node.

MDN Reference

Parameters

Returns number

Returns true if other is an inclusive descendant of node, and false otherwise.

MDN Reference

Parameters

Returns boolean

Returns node's root.

MDN Reference

Parameters

Returns Node

Returns whether node has children.

MDN Reference

Returns boolean

Type Parameters

Parameters

  • node: T
  • child: null | Node

Returns T

Parameters

  • namespace: null | string

Returns boolean

Returns whether node and otherNode have the same properties.

MDN Reference

Parameters

  • otherNode: null | Node

Returns boolean

Parameters

  • otherNode: null | Node

Returns boolean

Parameters

  • prefix: null | string

Returns null | string

Parameters

  • namespace: null | string

Returns null | string

Removes empty exclusive Text nodes and concatenates the data of remaining contiguous exclusive Text nodes into the first of their nodes.

MDN Reference

Returns void

Type Parameters

Parameters

  • child: T

Returns T

Type Parameters

Parameters

Returns T

Inserts nodes after the last child of node, while replacing strings in nodes with equivalent Text nodes.

Throws a "HierarchyRequestError" DOMException if the constraints of the node tree are violated.

MDN Reference

Parameters

  • nodes: (string | Node)[]

Returns void

Inserts nodes before the first child of node, while replacing strings in nodes with equivalent Text nodes.

Throws a "HierarchyRequestError" DOMException if the constraints of the node tree are violated.

MDN Reference

Parameters

  • nodes: (string | Node)[]

Returns void

Returns the first element that is a descendant of node that matches selectors.

MDN Reference

Type Parameters

Parameters

  • selectors: K

Returns null | HTMLElementTagNameMap[K]

Type Parameters

Parameters

  • selectors: K

Returns null | SVGElementTagNameMap[K]

Type Parameters

Parameters

  • selectors: K

Returns null | MathMLElementTagNameMap[K]

Type Parameters

Parameters

  • selectors: K

Returns null | HTMLElementDeprecatedTagNameMap[K]

Type Parameters

Parameters

  • selectors: string

Returns null | E

Returns all element descendants of node that match selectors.

MDN Reference

Type Parameters

Parameters

  • selectors: K

Returns NodeListOf<HTMLElementTagNameMap[K]>

Type Parameters

Parameters

  • selectors: K

Returns NodeListOf<SVGElementTagNameMap[K]>

Type Parameters

Parameters

  • selectors: K

Returns NodeListOf<MathMLElementTagNameMap[K]>

Type Parameters

Parameters

  • selectors: K

Returns NodeListOf<HTMLElementDeprecatedTagNameMap[K]>

Type Parameters

Parameters

  • selectors: string

Returns NodeListOf<E>

Replace all children of node with nodes, while replacing strings in nodes with equivalent Text nodes.

Throws a "HierarchyRequestError" DOMException if the constraints of the node tree are violated.

MDN Reference

Parameters

  • nodes: (string | Node)[]

Returns void