talkcontrol

---

talkcontrol / compat/lit-styles-compat / TcStyledElement

Abstract Class: TcStyledElement

Defined in: src/compat/lit-styles-compat.ts:36

Classe de base des web components qui ont besoin de Bulma (et, en option, des styles FontAwesome) dans leur shadow root : ils étendent TcStyledElement au lieu de LitElement, et n'incluent plus bulmaStyles/faStyles dans static styles (uniquement leur CSS propre).

Extends

• LitElement

Extended by

• ClockComponent
• LoaderComponent
• MagicModeTutorialComponent
• NotesComponent
• RemoteControlComponent
• SlideViewComponent
• TimerComponent
• UrlFormComponent
• TcStyledWithFaElement
• TouchPointerMaskComponent
• TouchPointerSettingsComponent

Constructors

Constructor

new TcStyledElement(): TcStyledElement

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:527

Returns

TcStyledElement

Inherited from

LitElement.constructor

attributes

observedAttributes

Get Signature

get static observedAttributes(): string[]

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:364

Returns a list of attributes corresponding to the registered properties.

Nocollapse

Returns

string[]

Inherited from

LitElement.observedAttributes

---

attributeChangedCallback()

attributeChangedCallback(name, _old, value): void

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:597

Synchronizes property values when attributes change.

Specifically, when an attribute is set, the corresponding property is set. You should rarely need to implement this callback. If this method is overridden, super.attributeChangedCallback(name, _old, value) must be called.

See responding to attribute changes on MDN for more information about the attributeChangedCallback.

Parameters

name

string

_old

string | null

value

string | null

Returns

void

Inherited from

LitElement.attributeChangedCallback

controllers

addController()

addController(controller): void

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:542

Registers a ReactiveController to participate in the element's reactive update cycle. The element automatically calls into any registered controllers during its lifecycle callbacks.

If the element is connected when addController() is called, the controller's hostConnected() callback will be immediately called.

Parameters

controller

ReactiveController

Returns

void

Inherited from

LitElement.addController

---

removeController()

removeController(controller): void

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:547

Removes a ReactiveController from the element.

Parameters

controller

ReactiveController

Returns

void

Inherited from

LitElement.removeController

dev-mode

disableWarning?

static optional disableWarning?: (warningKind) => void

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:241

Disable the given warning category for this class.

This method only exists in development builds, so it should be accessed with a guard like:

// Disable for all ReactiveElement subclasses
ReactiveElement.disableWarning?.('migration');

// Disable for only MyElement and subclasses
MyElement.disableWarning?.('migration');

Parameters

warningKind

WarningKind

Returns

void

Nocollapse

Inherited from

LitElement.disableWarning

---

enabledWarnings?

static optional enabledWarnings?: WarningKind[]

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:205

Read or set all the enabled warning categories for this class.

This property is only used in development builds.

Nocollapse

Inherited from

LitElement.enabledWarnings

---

enableWarning?

static optional enableWarning?: (warningKind) => void

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:223

Enable the given warning category for this class.

This method only exists in development builds, so it should be accessed with a guard like:

// Enable for all ReactiveElement subclasses
ReactiveElement.enableWarning?.('migration');

// Enable for only MyElement and subclasses
MyElement.enableWarning?.('migration');

Parameters

warningKind

WarningKind

Returns

void

Nocollapse

Inherited from

LitElement.enableWarning

lifecycle

connectedCallback()

connectedCallback(): void

Defined in: src/compat/lit-styles-compat.ts:39

Invoked when the component is added to the document's DOM.

In connectedCallback() you should setup tasks that should only occur when the element is connected to the document. The most common of these is adding event listeners to nodes external to the element, like a keydown event handler added to the window.

connectedCallback() {
  super.connectedCallback();
  addEventListener('keydown', this._handleKeydown);
}

Typically, anything done in connectedCallback() should be undone when the element is disconnected, in disconnectedCallback().

Returns

void

Overrides

LitElement.connectedCallback

---

disconnectedCallback()

disconnectedCallback(): void

Defined in: node_modules/lit-element/development/lit-element.d.ts:142

Invoked when the component is removed from the document's DOM.

This callback is the main signal to the element that it may no longer be used. disconnectedCallback() should ensure that nothing is holding a reference to the element (such as event listeners added to nodes external to the element), so that it is free to be garbage collected.

disconnectedCallback() {
  super.disconnectedCallback();
  window.removeEventListener('keydown', this._handleKeydown);
}

An element may be re-connected after being disconnected.

Returns

void

Inherited from

LitElement.disconnectedCallback

Other

accessKey

accessKey: string

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13688

The HTMLElement.accessKey property sets the keystroke which a user can press to jump to a given element.

MDN Reference

Inherited from

LitElement.accessKey

---

accessKeyLabel

readonly accessKeyLabel: string

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13694

The HTMLElement.accessKeyLabel read-only property returns a string containing the element's browser-assigned access key (if any); otherwise it returns an empty string.

MDN Reference

Inherited from

LitElement.accessKeyLabel

---

ariaActiveDescendantElement

ariaActiveDescendantElement: Element | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2607

MDN Reference

Inherited from

LitElement.ariaActiveDescendantElement

---

ariaAtomic

ariaAtomic: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2609

MDN Reference

Inherited from

LitElement.ariaAtomic

---

ariaAutoComplete

ariaAutoComplete: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2611

MDN Reference

Inherited from

LitElement.ariaAutoComplete

---

ariaBrailleLabel

ariaBrailleLabel: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2613

MDN Reference

Inherited from

LitElement.ariaBrailleLabel

---

ariaBrailleRoleDescription

ariaBrailleRoleDescription: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2615

MDN Reference

Inherited from

LitElement.ariaBrailleRoleDescription

---

ariaBusy

ariaBusy: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2617

MDN Reference

Inherited from

LitElement.ariaBusy

---

ariaChecked

ariaChecked: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2619

MDN Reference

Inherited from

LitElement.ariaChecked

---

ariaColCount

ariaColCount: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2621

MDN Reference

Inherited from

LitElement.ariaColCount

---

ariaColIndex

ariaColIndex: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2623

MDN Reference

Inherited from

LitElement.ariaColIndex

---

ariaColIndexText

ariaColIndexText: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2625

MDN Reference

Inherited from

LitElement.ariaColIndexText

---

ariaColSpan

ariaColSpan: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2627

MDN Reference

Inherited from

LitElement.ariaColSpan

---

ariaControlsElements

ariaControlsElements: readonly Element[] | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2629

MDN Reference

Inherited from

LitElement.ariaControlsElements

---

ariaCurrent

ariaCurrent: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2631

MDN Reference

Inherited from

LitElement.ariaCurrent

---

ariaDescribedByElements

ariaDescribedByElements: readonly Element[] | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2633

MDN Reference

Inherited from

LitElement.ariaDescribedByElements

---

ariaDescription

ariaDescription: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2635

MDN Reference

Inherited from

LitElement.ariaDescription

---

ariaDetailsElements

ariaDetailsElements: readonly Element[] | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2637

MDN Reference

Inherited from

LitElement.ariaDetailsElements

---

ariaDisabled

ariaDisabled: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2639

MDN Reference

Inherited from

LitElement.ariaDisabled

---

ariaErrorMessageElements

ariaErrorMessageElements: readonly Element[] | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2641

MDN Reference

Inherited from

LitElement.ariaErrorMessageElements

---

ariaExpanded

ariaExpanded: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2643

MDN Reference

Inherited from

LitElement.ariaExpanded

---

ariaFlowToElements

ariaFlowToElements: readonly Element[] | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2645

MDN Reference

Inherited from

LitElement.ariaFlowToElements

---

ariaHasPopup

ariaHasPopup: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2647

MDN Reference

Inherited from

LitElement.ariaHasPopup

---

ariaHidden

ariaHidden: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2649

MDN Reference

Inherited from

LitElement.ariaHidden

---

ariaInvalid

ariaInvalid: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2651

MDN Reference

Inherited from

LitElement.ariaInvalid

---

ariaKeyShortcuts

ariaKeyShortcuts: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2653

MDN Reference

Inherited from

LitElement.ariaKeyShortcuts

---

ariaLabel

ariaLabel: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2655

MDN Reference

Inherited from

LitElement.ariaLabel

---

ariaLabelledByElements

ariaLabelledByElements: readonly Element[] | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2657

MDN Reference

Inherited from

LitElement.ariaLabelledByElements

---

ariaLevel

ariaLevel: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2659

MDN Reference

Inherited from

LitElement.ariaLevel

---

ariaLive

ariaLive: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2661

MDN Reference

Inherited from

LitElement.ariaLive

---

ariaModal

ariaModal: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2663

MDN Reference

Inherited from

LitElement.ariaModal

---

ariaMultiLine

ariaMultiLine: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2665

MDN Reference

Inherited from

LitElement.ariaMultiLine

---

ariaMultiSelectable

ariaMultiSelectable: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2667

MDN Reference

Inherited from

LitElement.ariaMultiSelectable

---

ariaOrientation

ariaOrientation: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2669

MDN Reference

Inherited from

LitElement.ariaOrientation

---

ariaOwnsElements

ariaOwnsElements: readonly Element[] | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2671

MDN Reference

Inherited from

LitElement.ariaOwnsElements

---

ariaPlaceholder

ariaPlaceholder: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2673

MDN Reference

Inherited from

LitElement.ariaPlaceholder

---

ariaPosInSet

ariaPosInSet: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2675

MDN Reference

Inherited from

LitElement.ariaPosInSet

---

ariaPressed

ariaPressed: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2677

MDN Reference

Inherited from

LitElement.ariaPressed

---

ariaReadOnly

ariaReadOnly: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2679

MDN Reference

Inherited from

LitElement.ariaReadOnly

---

ariaRelevant

ariaRelevant: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2681

MDN Reference

Inherited from

LitElement.ariaRelevant

---

ariaRequired

ariaRequired: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2683

MDN Reference

Inherited from

LitElement.ariaRequired

---

ariaRoleDescription

ariaRoleDescription: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2685

MDN Reference

Inherited from

LitElement.ariaRoleDescription

---

ariaRowCount

ariaRowCount: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2687

MDN Reference

Inherited from

LitElement.ariaRowCount

---

ariaRowIndex

ariaRowIndex: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2689

MDN Reference

Inherited from

LitElement.ariaRowIndex

---

ariaRowIndexText

ariaRowIndexText: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2691

MDN Reference

Inherited from

LitElement.ariaRowIndexText

---

ariaRowSpan

ariaRowSpan: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2693

MDN Reference

Inherited from

LitElement.ariaRowSpan

---

ariaSelected

ariaSelected: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2695

MDN Reference

Inherited from

LitElement.ariaSelected

---

ariaSetSize

ariaSetSize: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2697

MDN Reference

Inherited from

LitElement.ariaSetSize

---

ariaSort

ariaSort: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2699

MDN Reference

Inherited from

LitElement.ariaSort

---

ariaValueMax

ariaValueMax: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2701

MDN Reference

Inherited from

LitElement.ariaValueMax

---

ariaValueMin

ariaValueMin: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2703

MDN Reference

Inherited from

LitElement.ariaValueMin

---

ariaValueNow

ariaValueNow: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2705

MDN Reference

Inherited from

LitElement.ariaValueNow

---

ariaValueText

ariaValueText: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2707

MDN Reference

Inherited from

LitElement.ariaValueText

---

assignedSlot

readonly assignedSlot: HTMLSlotElement | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:30826

MDN Reference

Inherited from

LitElement.assignedSlot

---

ATTRIBUTE_NODE

readonly ATTRIBUTE_NODE: 2

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21835

Inherited from

LitElement.ATTRIBUTE_NODE

---

attributes

readonly attributes: NamedNodeMap

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10707

The Element.attributes property returns a live collection of all attribute nodes registered to the specified node.

MDN Reference

Inherited from

LitElement.attributes

---

attributeStyleMap

readonly attributeStyleMap: StylePropertyMap

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11117

MDN Reference

Inherited from

LitElement.attributeStyleMap

---

autocapitalize

autocapitalize: string

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13700

The autocapitalize property of the HTMLElement interface represents the element's capitalization behavior for user input.

MDN Reference

Inherited from

LitElement.autocapitalize

---

autocorrect

autocorrect: boolean

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13706

The autocorrect property of the HTMLElement interface controls whether or not autocorrection of editable text is enabled for spelling and/or punctuation errors.

MDN Reference

Inherited from

LitElement.autocorrect

---

autofocus

autofocus: boolean

Defined in: node_modules/typescript/lib/lib.dom.d.ts:16065

MDN Reference

Inherited from

LitElement.autofocus

---

baseURI

readonly baseURI: string

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21664

The read-only baseURI property of the Node interface returns the absolute base URL of the document containing the node.

MDN Reference

Inherited from

LitElement.baseURI

---

CDATA_SECTION_NODE

readonly CDATA_SECTION_NODE: 4

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21839

node is a CDATASection node.

Inherited from

LitElement.CDATA_SECTION_NODE

---

childElementCount

readonly childElementCount: number

Defined in: node_modules/typescript/lib/lib.dom.d.ts:22668

MDN Reference

Inherited from

LitElement.childElementCount

---

childNodes

readonly childNodes: NodeListOf<ChildNode>

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21670

The read-only childNodes property of the Node interface returns a live the first child node is assigned index 0.

MDN Reference

Inherited from

LitElement.childNodes

---

children

readonly children: HTMLCollection

Defined in: node_modules/typescript/lib/lib.dom.d.ts:22674

Returns the child elements.

MDN Reference

Inherited from

LitElement.children

---

className

className: string

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10720

The className property of the of the specified element.

MDN Reference

Inherited from

LitElement.className

---

clientHeight

readonly clientHeight: number

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10726

The clientHeight read-only property of the Element interface is zero for elements with no CSS or inline layout boxes; otherwise, it's the inner height of an element in pixels.

MDN Reference

Inherited from

LitElement.clientHeight

---

clientLeft

readonly clientLeft: number

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10732

The clientLeft read-only property of the Element interface returns the width of the left border of an element in pixels.

MDN Reference

Inherited from

LitElement.clientLeft

---

clientTop

readonly clientTop: number

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10738

The clientTop read-only property of the Element interface returns the width of the top border of an element in pixels.

MDN Reference

Inherited from

LitElement.clientTop

---

clientWidth

readonly clientWidth: number

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10744

The clientWidth read-only property of the Element interface is zero for inline elements and elements with no CSS; otherwise, it's the inner width of an element in pixels.

MDN Reference

Inherited from

LitElement.clientWidth

---

COMMENT_NODE

readonly COMMENT_NODE: 8

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21845

node is a Comment node.

Inherited from

LitElement.COMMENT_NODE

---

contentEditable

contentEditable: string

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11125

MDN Reference

Inherited from

LitElement.contentEditable

---

currentCSSZoom

readonly currentCSSZoom: number

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10750

The currentCSSZoom read-only property of the Element interface provides the 'effective' CSS zoom of an element, taking into account the zoom applied to the element and all its parent elements.

MDN Reference

Inherited from

LitElement.currentCSSZoom

---

dataset

readonly dataset: DOMStringMap

Defined in: node_modules/typescript/lib/lib.dom.d.ts:16067

MDN Reference

Inherited from

LitElement.dataset

---

dir

dir: string

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13712

The HTMLElement.dir property indicates the text writing directionality of the content of the current element.

MDN Reference

Inherited from

LitElement.dir

---

DOCUMENT_FRAGMENT_NODE

readonly DOCUMENT_FRAGMENT_NODE: 11

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21851

node is a DocumentFragment node.

Inherited from

LitElement.DOCUMENT_FRAGMENT_NODE

---

DOCUMENT_NODE

readonly DOCUMENT_NODE: 9

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21847

node is a document.

Inherited from

LitElement.DOCUMENT_NODE

---

DOCUMENT_POSITION_CONTAINED_BY

readonly DOCUMENT_POSITION_CONTAINED_BY: 16

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21862

Set when other is a descendant of node.

Inherited from

LitElement.DOCUMENT_POSITION_CONTAINED_BY

---

DOCUMENT_POSITION_CONTAINS

readonly DOCUMENT_POSITION_CONTAINS: 8

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21860

Set when other is an ancestor of node.

Inherited from

LitElement.DOCUMENT_POSITION_CONTAINS

---

DOCUMENT_POSITION_DISCONNECTED

readonly DOCUMENT_POSITION_DISCONNECTED: 1

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21854

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

Inherited from

LitElement.DOCUMENT_POSITION_DISCONNECTED

---

DOCUMENT_POSITION_FOLLOWING

readonly DOCUMENT_POSITION_FOLLOWING: 4

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21858

Set when other is following node.

Inherited from

LitElement.DOCUMENT_POSITION_FOLLOWING

---

DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC

readonly DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC: 32

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21863

Inherited from

LitElement.DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC

---

DOCUMENT_POSITION_PRECEDING

readonly DOCUMENT_POSITION_PRECEDING: 2

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21856

Set when other is preceding node.

Inherited from

LitElement.DOCUMENT_POSITION_PRECEDING

---

DOCUMENT_TYPE_NODE

readonly DOCUMENT_TYPE_NODE: 10

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21849

node is a doctype.

Inherited from

LitElement.DOCUMENT_TYPE_NODE

---

draggable

draggable: boolean

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13718

The draggable property of the HTMLElement interface gets and sets a Boolean primitive indicating if the element is draggable.

MDN Reference

Inherited from

LitElement.draggable

---

ELEMENT_NODE

readonly ELEMENT_NODE: 1

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21834

node is an element.

Inherited from

LitElement.ELEMENT_NODE

---

enterKeyHint

enterKeyHint: string

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11127

MDN Reference

Inherited from

LitElement.enterKeyHint

---

ENTITY_NODE

readonly ENTITY_NODE: 6

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21841

Inherited from

LitElement.ENTITY_NODE

---

ENTITY_REFERENCE_NODE

readonly ENTITY_REFERENCE_NODE: 5

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21840

Inherited from

LitElement.ENTITY_REFERENCE_NODE

---

firstChild

readonly firstChild: ChildNode | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21676

The read-only firstChild property of the Node interface returns the node's first child in the tree, or null if the node has no children.

MDN Reference

Inherited from

LitElement.firstChild

---

firstElementChild

readonly firstElementChild: Element | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:22680

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

MDN Reference

Inherited from

LitElement.firstElementChild

---

hidden

hidden: boolean

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13724

The HTMLElement property hidden reflects the value of the element's hidden attribute.

MDN Reference

Inherited from

LitElement.hidden

---

id

id: string

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10756

The id property of the Element interface represents the element's identifier, reflecting the id global attribute.

MDN Reference

Inherited from

LitElement.id

---

inert

inert: boolean

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13730

The HTMLElement property inert reflects the value of the element's inert attribute.

MDN Reference

Inherited from

LitElement.inert

---

innerHTML

innerHTML: string

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10762

The innerHTML property of the Element interface gets or sets the HTML or XML markup contained within the element.

MDN Reference

Inherited from

LitElement.innerHTML

---

innerText

innerText: string

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13736

The innerText property of the HTMLElement interface represents the rendered text content of a node and its descendants.

MDN Reference

Inherited from

LitElement.innerText

---

inputMode

inputMode: string

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11129

MDN Reference

Inherited from

LitElement.inputMode

---

isConnected

readonly isConnected: boolean

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21682

The read-only isConnected property of the Node interface returns a boolean indicating whether the node is connected (directly or indirectly) to a Document object.

MDN Reference

Inherited from

LitElement.isConnected

---

isContentEditable

readonly isContentEditable: boolean

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11131

MDN Reference

Inherited from

LitElement.isContentEditable

---

lang

lang: string

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13742

The lang property of the HTMLElement interface indicates the base language of an element's attribute values and text content, in the form of a MISSING: RFC(5646, 'BCP 47 language identifier tag')].

MDN Reference

Inherited from

LitElement.lang

---

lastChild

readonly lastChild: ChildNode | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21688

The read-only lastChild property of the Node interface returns the last child of the node, or null if there are no child nodes.

MDN Reference

Inherited from

LitElement.lastChild

---

lastElementChild

readonly lastElementChild: Element | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:22686

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

MDN Reference

Inherited from

LitElement.lastElementChild

---

localName

readonly localName: string

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10768

The Element.localName read-only property returns the local part of the qualified name of an element.

MDN Reference

Inherited from

LitElement.localName

---

namespaceURI

readonly namespaceURI: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10774

The Element.namespaceURI read-only property returns the namespace URI of the element, or null if the element is not in a namespace.

MDN Reference

Inherited from

LitElement.namespaceURI

---

nextElementSibling

readonly nextElementSibling: Element | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:22003

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

MDN Reference

Inherited from

LitElement.nextElementSibling

---

nextSibling

readonly nextSibling: ChildNode | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21694

The read-only nextSibling property of the Node interface returns the node immediately following the specified one in their parent's Node.childNodes, or returns null if the specified node is the last child in the parent element.

MDN Reference

Inherited from

LitElement.nextSibling

---

nodeName

readonly nodeName: string

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21700

The read-only nodeName property of Node returns the name of the current node as a string.

MDN Reference

Inherited from

LitElement.nodeName

---

nodeType

readonly nodeType: number

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21706

The read-only nodeType property of a Node interface is an integer that identifies what the node is.

MDN Reference

Inherited from

LitElement.nodeType

---

nodeValue

nodeValue: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21712

The nodeValue property of the Node interface returns or sets the value of the current node.

MDN Reference

Inherited from

LitElement.nodeValue

---

nonce?

optional nonce?: string

Defined in: node_modules/typescript/lib/lib.dom.d.ts:16069

MDN Reference

Inherited from

LitElement.nonce

---

NOTATION_NODE

readonly NOTATION_NODE: 12

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21852

Inherited from

LitElement.NOTATION_NODE

---

offsetHeight

readonly offsetHeight: number

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13748

The offsetHeight read-only property of the HTMLElement interface returns the height of an element, including vertical padding and borders, as an integer.

MDN Reference

Inherited from

LitElement.offsetHeight

---

offsetLeft

readonly offsetLeft: number

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13754

The offsetLeft read-only property of the HTMLElement interface returns the number of pixels that the upper left corner of the current element is offset to the left within the HTMLElement.offsetParent node.

MDN Reference

Inherited from

LitElement.offsetLeft

---

offsetParent

readonly offsetParent: Element | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13760

The HTMLElement.offsetParent read-only property returns a reference to the element which is the closest (nearest in the containment hierarchy) positioned ancestor element.

MDN Reference

Inherited from

ClockComponent.offsetParent

---

offsetTop

readonly offsetTop: number

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13766

The offsetTop read-only property of the HTMLElement interface returns the distance from the outer border of the current element (including its margin) to the top padding edge of the HTMLelement.offsetParent, the closest positioned ancestor element.

MDN Reference

Inherited from

LitElement.offsetTop

---

offsetWidth

readonly offsetWidth: number

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13772

The offsetWidth read-only property of the HTMLElement interface returns the layout width of an element as an integer.

MDN Reference

Inherited from

LitElement.offsetWidth

---

onabort

onabort: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12743

MDN Reference

Inherited from

LitElement.onabort

---

onanimationcancel

onanimationcancel: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12745

MDN Reference

Inherited from

LitElement.onanimationcancel

---

onanimationend

onanimationend: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12747

MDN Reference

Inherited from

LitElement.onanimationend

---

onanimationiteration

onanimationiteration: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12749

MDN Reference

Inherited from

LitElement.onanimationiteration

---

onanimationstart

onanimationstart: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12751

MDN Reference

Inherited from

LitElement.onanimationstart

---

onauxclick

onauxclick: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12753

MDN Reference

Inherited from

LitElement.onauxclick

---

onbeforeinput

onbeforeinput: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12755

MDN Reference

Inherited from

LitElement.onbeforeinput

---

onbeforematch

onbeforematch: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12757

MDN Reference

Inherited from

LitElement.onbeforematch

---

onbeforetoggle

onbeforetoggle: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12759

MDN Reference

Inherited from

LitElement.onbeforetoggle

---

onblur

onblur: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12761

MDN Reference

Inherited from

LitElement.onblur

---

oncancel

oncancel: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12763

MDN Reference

Inherited from

LitElement.oncancel

---

oncanplay

oncanplay: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12765

MDN Reference

Inherited from

LitElement.oncanplay

---

oncanplaythrough

oncanplaythrough: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12767

MDN Reference

Inherited from

LitElement.oncanplaythrough

---

onchange

onchange: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12769

MDN Reference

Inherited from

LitElement.onchange

---

onclick

onclick: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12771

MDN Reference

Inherited from

LitElement.onclick

---

onclose

onclose: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12773

MDN Reference

Inherited from

LitElement.onclose

---

oncontextlost

oncontextlost: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12775

MDN Reference

Inherited from

LitElement.oncontextlost

---

oncontextmenu

oncontextmenu: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12777

MDN Reference

Inherited from

LitElement.oncontextmenu

---

oncontextrestored

oncontextrestored: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12779

MDN Reference

Inherited from

LitElement.oncontextrestored

---

oncopy

oncopy: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12781

MDN Reference

Inherited from

LitElement.oncopy

---

oncuechange

oncuechange: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12783

MDN Reference

Inherited from

LitElement.oncuechange

---

oncut

oncut: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12785

MDN Reference

Inherited from

LitElement.oncut

---

ondblclick

ondblclick: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12787

MDN Reference

Inherited from

LitElement.ondblclick

---

ondrag

ondrag: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12789

MDN Reference

Inherited from

LitElement.ondrag

---

ondragend

ondragend: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12791

MDN Reference

Inherited from

LitElement.ondragend

---

ondragenter

ondragenter: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12793

MDN Reference

Inherited from

LitElement.ondragenter

---

ondragleave

ondragleave: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12795

MDN Reference

Inherited from

LitElement.ondragleave

---

ondragover

ondragover: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12797

MDN Reference

Inherited from

LitElement.ondragover

---

ondragstart

ondragstart: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12799

MDN Reference

Inherited from

LitElement.ondragstart

---

ondrop

ondrop: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12801

MDN Reference

Inherited from

LitElement.ondrop

---

ondurationchange

ondurationchange: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12803

MDN Reference

Inherited from

LitElement.ondurationchange

---

onemptied

onemptied: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12805

MDN Reference

Inherited from

LitElement.onemptied

---

onended

onended: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12807

MDN Reference

Inherited from

LitElement.onended

---

onerror

onerror: OnErrorEventHandler

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12809

MDN Reference

Inherited from

LitElement.onerror

---

onfocus

onfocus: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12811

MDN Reference

Inherited from

LitElement.onfocus

---

onformdata

onformdata: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12813

MDN Reference

Inherited from

LitElement.onformdata

---

onfullscreenchange

onfullscreenchange: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10776

MDN Reference

Inherited from

LitElement.onfullscreenchange

---

onfullscreenerror

onfullscreenerror: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10778

MDN Reference

Inherited from

LitElement.onfullscreenerror

---

ongotpointercapture

ongotpointercapture: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12815

MDN Reference

Inherited from

LitElement.ongotpointercapture

---

oninput

oninput: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12817

MDN Reference

Inherited from

LitElement.oninput

---

oninvalid

oninvalid: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12819

MDN Reference

Inherited from

LitElement.oninvalid

---

onkeydown

onkeydown: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12821

MDN Reference

Inherited from

LitElement.onkeydown

---

onkeypress

onkeypress: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12827

Deprecated

MDN Reference

Inherited from

LitElement.onkeypress

---

onkeyup

onkeyup: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12829

MDN Reference

Inherited from

LitElement.onkeyup

---

onload

onload: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12831

MDN Reference

Inherited from

LitElement.onload

---

onloadeddata

onloadeddata: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12833

MDN Reference

Inherited from

LitElement.onloadeddata

---

onloadedmetadata

onloadedmetadata: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12835

MDN Reference

Inherited from

LitElement.onloadedmetadata

---

onloadstart

onloadstart: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12837

MDN Reference

Inherited from

LitElement.onloadstart

---

onlostpointercapture

onlostpointercapture: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12839

MDN Reference

Inherited from

LitElement.onlostpointercapture

---

onmousedown

onmousedown: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12841

MDN Reference

Inherited from

LitElement.onmousedown

---

onmouseenter

onmouseenter: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12843

MDN Reference

Inherited from

LitElement.onmouseenter

---

onmouseleave

onmouseleave: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12845

MDN Reference

Inherited from

LitElement.onmouseleave

---

onmousemove

onmousemove: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12847

MDN Reference

Inherited from

LitElement.onmousemove

---

onmouseout

onmouseout: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12849

MDN Reference

Inherited from

LitElement.onmouseout

---

onmouseover

onmouseover: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12851

MDN Reference

Inherited from

LitElement.onmouseover

---

onmouseup

onmouseup: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12853

MDN Reference

Inherited from

LitElement.onmouseup

---

onpaste

onpaste: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12855

MDN Reference

Inherited from

LitElement.onpaste

---

onpause

onpause: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12857

MDN Reference

Inherited from

LitElement.onpause

---

onplay

onplay: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12859

MDN Reference

Inherited from

LitElement.onplay

---

onplaying

onplaying: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12861

MDN Reference

Inherited from

LitElement.onplaying

---

onpointercancel

onpointercancel: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12863

MDN Reference

Inherited from

LitElement.onpointercancel

---

onpointerdown

onpointerdown: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12865

MDN Reference

Inherited from

LitElement.onpointerdown

---

onpointerenter

onpointerenter: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12867

MDN Reference

Inherited from

LitElement.onpointerenter

---

onpointerleave

onpointerleave: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12869

MDN Reference

Inherited from

LitElement.onpointerleave

---

onpointermove

onpointermove: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12871

MDN Reference

Inherited from

LitElement.onpointermove

---

onpointerout

onpointerout: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12873

MDN Reference

Inherited from

LitElement.onpointerout

---

onpointerover

onpointerover: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12875

MDN Reference

Inherited from

LitElement.onpointerover

---

onpointerrawupdate

onpointerrawupdate: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12881

Available only in secure contexts.

MDN Reference

Inherited from

LitElement.onpointerrawupdate

---

onpointerup

onpointerup: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12883

MDN Reference

Inherited from

LitElement.onpointerup

---

onprogress

onprogress: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12885

MDN Reference

Inherited from

LitElement.onprogress

---

onratechange

onratechange: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12887

MDN Reference

Inherited from

LitElement.onratechange

---

onreset

onreset: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12889

MDN Reference

Inherited from

LitElement.onreset

---

onresize

onresize: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12891

MDN Reference

Inherited from

LitElement.onresize

---

onscroll

onscroll: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12893

MDN Reference

Inherited from

LitElement.onscroll

---

onscrollend

onscrollend: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12895

MDN Reference

Inherited from

LitElement.onscrollend

---

onsecuritypolicyviolation

onsecuritypolicyviolation: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12897

MDN Reference

Inherited from

LitElement.onsecuritypolicyviolation

---

onseeked

onseeked: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12899

MDN Reference

Inherited from

LitElement.onseeked

---

onseeking

onseeking: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12901

MDN Reference

Inherited from

LitElement.onseeking

---

onselect

onselect: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12903

MDN Reference

Inherited from

LitElement.onselect

---

onselectionchange

onselectionchange: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12905

MDN Reference

Inherited from

LitElement.onselectionchange

---

onselectstart

onselectstart: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12907

MDN Reference

Inherited from

LitElement.onselectstart

---

onslotchange

onslotchange: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12909

MDN Reference

Inherited from

LitElement.onslotchange

---

onstalled

onstalled: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12911

MDN Reference

Inherited from

LitElement.onstalled

---

onsubmit

onsubmit: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12913

MDN Reference

Inherited from

LitElement.onsubmit

---

onsuspend

onsuspend: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12915

MDN Reference

Inherited from

LitElement.onsuspend

---

ontimeupdate

ontimeupdate: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12917

MDN Reference

Inherited from

LitElement.ontimeupdate

---

ontoggle

ontoggle: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12919

MDN Reference

Inherited from

LitElement.ontoggle

---

ontouchcancel?

optional ontouchcancel?: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12921

MDN Reference

Inherited from

LitElement.ontouchcancel

---

ontouchend?

optional ontouchend?: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12923

MDN Reference

Inherited from

LitElement.ontouchend

---

ontouchmove?

optional ontouchmove?: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12925

MDN Reference

Inherited from

LitElement.ontouchmove

---

ontouchstart?

optional ontouchstart?: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12927

MDN Reference

Inherited from

LitElement.ontouchstart

---

ontransitioncancel

ontransitioncancel: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12929

MDN Reference

Inherited from

LitElement.ontransitioncancel

---

ontransitionend

ontransitionend: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12931

MDN Reference

Inherited from

LitElement.ontransitionend

---

ontransitionrun

ontransitionrun: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12933

MDN Reference

Inherited from

LitElement.ontransitionrun

---

ontransitionstart

ontransitionstart: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12935

MDN Reference

Inherited from

LitElement.ontransitionstart

---

onvolumechange

onvolumechange: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12937

MDN Reference

Inherited from

LitElement.onvolumechange

---

onwaiting

onwaiting: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12939

MDN Reference

Inherited from

LitElement.onwaiting

---

onwebkitanimationend

onwebkitanimationend: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12945

Deprecated

This is a legacy alias of onanimationend.

MDN Reference

Inherited from

LitElement.onwebkitanimationend

---

onwebkitanimationiteration

onwebkitanimationiteration: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12951

Deprecated

This is a legacy alias of onanimationiteration.

MDN Reference

Inherited from

LitElement.onwebkitanimationiteration

---

onwebkitanimationstart

onwebkitanimationstart: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12957

Deprecated

This is a legacy alias of onanimationstart.

MDN Reference

Inherited from

LitElement.onwebkitanimationstart

---

onwebkittransitionend

onwebkittransitionend: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12963

Deprecated

This is a legacy alias of ontransitionend.

MDN Reference

Inherited from

LitElement.onwebkittransitionend

---

onwheel

onwheel: ((this, ev) => any) | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:12965

MDN Reference

Inherited from

LitElement.onwheel

---

outerHTML

outerHTML: string

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10784

The outerHTML attribute of the Element DOM interface gets the serialized HTML fragment describing the element including its descendants.

MDN Reference

Inherited from

LitElement.outerHTML

---

outerText

outerText: string

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13778

The outerText property of the HTMLElement interface returns the same value as HTMLElement.innerText.

MDN Reference

Inherited from

LitElement.outerText

---

ownerDocument

readonly ownerDocument: Document

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10785

The read-only ownerDocument property of the Node interface returns the top-level document object of the node.

MDN Reference

Inherited from

LitElement.ownerDocument

---

parentElement

readonly parentElement: HTMLElement | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21724

The read-only parentElement property of Node interface returns the DOM node's parent Element, or null if the node either has no parent, or its parent isn't a DOM Element.

MDN Reference

Inherited from

LitElement.parentElement

---

parentNode

readonly parentNode: ParentNode | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21730

The read-only parentNode property of the Node interface returns the parent of the specified node in the DOM tree.

MDN Reference

Inherited from

LitElement.parentNode

---

popover

popover: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13784

The popover property of the HTMLElement interface gets and sets an element's popover state via JavaScript ('auto', 'hint', or 'manual'), and can be used for feature detection.

MDN Reference

Inherited from

ClockComponent.popover

---

prefix

readonly prefix: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10798

The Element.prefix read-only property returns the namespace prefix of the specified element, or null if no prefix is specified.

MDN Reference

Inherited from

LitElement.prefix

---

previousElementSibling

readonly previousElementSibling: Element | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:22009

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

MDN Reference

Inherited from

LitElement.previousElementSibling

---

previousSibling

readonly previousSibling: ChildNode | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21736

The read-only previousSibling property of the Node interface returns the node immediately preceding the specified one in its parent's or null if the specified node is the first in that list.

MDN Reference

Inherited from

LitElement.previousSibling

---

PROCESSING_INSTRUCTION_NODE

readonly PROCESSING_INSTRUCTION_NODE: 7

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21843

node is a ProcessingInstruction node.

Inherited from

LitElement.PROCESSING_INSTRUCTION_NODE

---

role

role: string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2709

MDN Reference

Inherited from

LitElement.role

---

scrollHeight

readonly scrollHeight: number

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10804

The scrollHeight read-only property of the Element interface is a measurement of the height of an element's content, including content not visible on the screen due to overflow.

MDN Reference

Inherited from

LitElement.scrollHeight

---

scrollLeft

scrollLeft: number

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10810

The scrollLeft property of the Element interface gets or sets the number of pixels by which an element's content is scrolled from its left edge.

MDN Reference

Inherited from

LitElement.scrollLeft

---

scrollTop

scrollTop: number

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10816

The scrollTop property of the Element interface gets or sets the number of pixels by which an element's content is scrolled from its top edge.

MDN Reference

Inherited from

LitElement.scrollTop

---

scrollWidth

readonly scrollWidth: number

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10822

The scrollWidth read-only property of the Element interface is a measurement of the width of an element's content, including content not visible on the screen due to overflow.

MDN Reference

Inherited from

LitElement.scrollWidth

---

shadowRoot

readonly shadowRoot: ShadowRoot | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10828

The Element.shadowRoot read-only property represents the shadow root hosted by the element.

MDN Reference

Inherited from

LitElement.shadowRoot

---

slot

slot: string

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10834

The slot property of the Element interface returns the name of the shadow DOM slot the element is inserted in.

MDN Reference

Inherited from

LitElement.slot

---

spellcheck

spellcheck: boolean

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13790

The spellcheck property of the HTMLElement interface represents a boolean value that controls the spell-checking hint.

MDN Reference

Inherited from

LitElement.spellcheck

---

tabIndex

tabIndex: number

Defined in: node_modules/typescript/lib/lib.dom.d.ts:16071

MDN Reference

Inherited from

LitElement.tabIndex

---

tagName

readonly tagName: string

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10840

The tagName read-only property of the Element interface returns the tag name of the element on which it's called.

MDN Reference

Inherited from

LitElement.tagName

---

TEXT_NODE

readonly TEXT_NODE: 3

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21837

node is a Text node.

Inherited from

LitElement.TEXT_NODE

---

title

title: string

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13796

The HTMLElement.title property represents the title of the element: the text usually displayed in a 'tooltip' popup when the mouse is over the node.

MDN Reference

Inherited from

LitElement.title

---

translate

translate: boolean

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13802

The translate property of the HTMLElement interface indicates whether an element's attribute values and the values of its Text node children are to be translated when the page is localized, or whether to leave them unchanged.

MDN Reference

Inherited from

LitElement.translate

---

writingSuggestions

writingSuggestions: string

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13808

The writingSuggestions property of the HTMLElement interface is a string indicating if browser-provided writing suggestions should be enabled under the scope of the element or not.

MDN Reference

Inherited from

LitElement.writingSuggestions

---

_$litElement$

static _$litElement$: boolean

Defined in: node_modules/lit-element/development/lit-element.d.ts:84

Inherited from

LitElement._$litElement$

---

_initializers?

static optional _initializers?: Initializer[]

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:276

Inherited from

LitElement._initializers

---

[metadata]

static [metadata]: object & Record<PropertyKey, unknown>

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:435

Inherited from

LitElement.[metadata]

---

finalized

protected static finalized: true | undefined

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:290

Marks class as having been finalized, which includes creating properties from static properties, but does not include all properties created from decorators.

Nocollapse

Inherited from

LitElement.finalized

---

sharedStyleSheets

protected readonly static sharedStyleSheets: CSSStyleSheet[]

Defined in: src/compat/lit-styles-compat.ts:37

---

classList

Get Signature

get classList(): DOMTokenList

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10713

The Element.classList is a read-only property that returns a live DOMTokenList collection of the class attributes of the element.

MDN Reference

Returns

DOMTokenList

Set Signature

set classList(value): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10714

Parameters

value

string

Returns

void

Inherited from

LitElement.classList

---

part

Get Signature

get part(): DOMTokenList

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10791

The part property of the Element interface represents the part identifier(s) of the element (i.e., set using the part attribute), returned as a DOMTokenList.

MDN Reference

Returns

DOMTokenList

Set Signature

set part(value): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10792

Parameters

value

string

Returns

void

Inherited from

LitElement.part

---

style

Get Signature

get style(): CSSStyleDeclaration

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11119

MDN Reference

Returns

CSSStyleDeclaration

Set Signature

set style(cssText): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11120

Parameters

cssText

string

Returns

void

Inherited from

LitElement.style

---

textContent

Get Signature

get textContent(): string

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11102

MDN Reference

Returns

string

Set Signature

set textContent(value): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11103

The textContent property of the Node interface represents the text content of the node and its descendants.

MDN Reference

Parameters

value

string | null

Returns

void

Inherited from

MenuNavigationComponent.textContent

---

addEventListener()

Call Signature

addEventListener<K>(type, listener, options?): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13839

Type Parameters

K

K extends keyof HTMLElementEventMap

Parameters

type

K

listener

(this, ev) => any

options?

boolean | AddEventListenerOptions

Returns

void

Inherited from

LitElement.addEventListener

Call Signature

addEventListener(type, listener, options?): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13840

Parameters

type

string

listener

EventListenerOrEventListenerObject

options?

boolean | AddEventListenerOptions

Returns

void

Inherited from

LitElement.addEventListener

---

after()

after(...nodes): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:7953

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

Inherited from

LitElement.after

---

animate()

animate(keyframes, options?): Animation

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2921

MDN Reference

Parameters

keyframes

Keyframe[] | PropertyIndexedKeyframes | null

options?

number | KeyframeAnimationOptions

Returns

Animation

Inherited from

LitElement.animate

---

append()

append(...nodes): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:22694

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

Inherited from

LitElement.append

---

appendChild()

appendChild<T>(node): T

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21748

The appendChild() method of the Node interface adds a node to the end of the list of children of a specified parent node.

MDN Reference

Type Parameters

T

T extends Node

Parameters

node

T

Returns

T

Inherited from

LitElement.appendChild

---

attachInternals()

attachInternals(): ElementInternals

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13814

The HTMLElement.attachInternals() method returns an ElementInternals object.

MDN Reference

Returns

ElementInternals

Inherited from

LitElement.attachInternals

---

attachShadow()

attachShadow(init): ShadowRoot

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10846

The Element.attachShadow() method attaches a shadow DOM tree to the specified element and returns a reference to its ShadowRoot.

MDN Reference

Parameters

init

ShadowRootInit

Returns

ShadowRoot

Inherited from

LitElement.attachShadow

---

before()

before(...nodes): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:7961

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

Inherited from

LitElement.before

---

blur()

blur(): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:16073

MDN Reference

Returns

void

Inherited from

LitElement.blur

---

checkVisibility()

checkVisibility(options?): boolean

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10852

The checkVisibility() method of the Element interface checks whether the element is visible.

MDN Reference

Parameters

options?

CheckVisibilityOptions

Returns

boolean

Inherited from

LitElement.checkVisibility

---

click()

click(): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13820

The HTMLElement.click() method simulates a mouse click on an element.

MDN Reference

Returns

void

Inherited from

LitElement.click

---

cloneNode()

cloneNode(subtree?): Node

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21754

The cloneNode() method of the Node interface returns a duplicate of the node on which this method was called.

MDN Reference

Parameters

subtree?

boolean

Returns

Node

Inherited from

LitElement.cloneNode

---

closest()

Call Signature

closest<K>(selector): HTMLElementTagNameMap[K] | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10858

The closest() method of the Element interface traverses the element and its parents (heading toward the document root) until it finds a node that matches the specified CSS selector.

MDN Reference

Type Parameters

K

K extends keyof HTMLElementTagNameMap

Parameters

selector

K

Returns

HTMLElementTagNameMap[K] | null

Inherited from

LitElement.closest

Call Signature

closest<K>(selector): SVGElementTagNameMap[K] | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10859

Type Parameters

K

K extends keyof SVGElementTagNameMap

Parameters

selector

K

Returns

SVGElementTagNameMap[K] | null

Inherited from

LitElement.closest

Call Signature

closest<K>(selector): MathMLElementTagNameMap[K] | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10860

Type Parameters

K

K extends keyof MathMLElementTagNameMap

Parameters

selector

K

Returns

MathMLElementTagNameMap[K] | null

Inherited from

LitElement.closest

Call Signature

closest<E>(selectors): E | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10861

Type Parameters

E

E extends Element = Element

Parameters

selectors

string

Returns

E | null

Inherited from

LitElement.closest

---

compareDocumentPosition()

compareDocumentPosition(other): number

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21760

The compareDocumentPosition() method of the Node interface reports the position of its argument node relative to the node on which it is called.

MDN Reference

Parameters

other

Node

Returns

number

Inherited from

LitElement.compareDocumentPosition

---

computedStyleMap()

computedStyleMap(): StylePropertyMapReadOnly

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10867

The computedStyleMap() method of the Element interface returns a StylePropertyMapReadOnly interface which provides a read-only representation of a CSS declaration block that is an alternative to CSSStyleDeclaration.

MDN Reference

Returns

StylePropertyMapReadOnly

Inherited from

LitElement.computedStyleMap

---

contains()

contains(other): boolean

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21766

The contains() method of the Node interface returns a boolean value indicating whether a node is a descendant of a given node, that is the node itself, one of its direct children (Node.childNodes), one of the children's direct children, and so on.

MDN Reference

Parameters

other

Node | null

Returns

boolean

Inherited from

LitElement.contains

---

dispatchEvent()

dispatchEvent(event): boolean

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11575

The dispatchEvent() method of the EventTarget sends an Event to the object, (synchronously) invoking the affected event listeners in the appropriate order.

MDN Reference

Parameters

event

Event

Returns

boolean

Inherited from

LitElement.dispatchEvent

---

focus()

focus(options?): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:16075

MDN Reference

Parameters

options?

FocusOptions

Returns

void

Inherited from

LitElement.focus

---

getAnimations()

getAnimations(options?): Animation[]

Defined in: node_modules/typescript/lib/lib.dom.d.ts:2923

MDN Reference

Parameters

options?

GetAnimationsOptions

Returns

Animation[]

Inherited from

LitElement.getAnimations

---

getAttribute()

getAttribute(qualifiedName): string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10873

The getAttribute() method of the element.

MDN Reference

Parameters

qualifiedName

string

Returns

string | null

Inherited from

LitElement.getAttribute

---

getAttributeNames()

getAttributeNames(): string[]

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10885

The getAttributeNames() method of the array.

MDN Reference

Returns

string[]

Inherited from

LitElement.getAttributeNames

---

getAttributeNode()

getAttributeNode(qualifiedName): Attr | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10891

Returns the specified attribute of the specified element, as an Attr node.

MDN Reference

Parameters

qualifiedName

string

Returns

Attr | null

Inherited from

LitElement.getAttributeNode

---

getAttributeNodeNS()

getAttributeNodeNS(namespace, localName): Attr | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10897

The getAttributeNodeNS() method of the Element interface returns the namespaced Attr node of an element.

MDN Reference

Parameters

namespace

string | null

localName

string

Returns

Attr | null

Inherited from

LitElement.getAttributeNodeNS

---

getAttributeNS()

getAttributeNS(namespace, localName): string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10879

The getAttributeNS() method of the Element interface returns the string value of the attribute with the specified namespace and name.

MDN Reference

Parameters

namespace

string | null

localName

string

Returns

string | null

Inherited from

LitElement.getAttributeNS

---

getBoundingClientRect()

getBoundingClientRect(): DOMRect

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10903

The Element.getBoundingClientRect() method returns a position relative to the viewport.

MDN Reference

Returns

DOMRect

Inherited from

LitElement.getBoundingClientRect

---

getClientRects()

getClientRects(): DOMRectList

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10909

The getClientRects() method of the Element interface returns a collection of DOMRect objects that indicate the bounding rectangles for each CSS border box in a client.

MDN Reference

Returns

DOMRectList

Inherited from

LitElement.getClientRects

---

getElementsByClassName()

getElementsByClassName(classNames): HTMLCollectionOf<Element>

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10915

The Element method getElementsByClassName() returns a live specified class name or names.

MDN Reference

Parameters

classNames

string

Returns

HTMLCollectionOf<Element>

Inherited from

LitElement.getElementsByClassName

---

getElementsByTagName()

Call Signature

getElementsByTagName<K>(qualifiedName): HTMLCollectionOf<HTMLElementTagNameMap[K]>

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10921

The Element.getElementsByTagName() method returns a live All descendants of the specified element are searched, but not the element itself.

MDN Reference

Type Parameters

K

K extends keyof HTMLElementTagNameMap

Parameters

qualifiedName

K

Returns

HTMLCollectionOf<HTMLElementTagNameMap[K]>

Inherited from

LitElement.getElementsByTagName

Call Signature

getElementsByTagName<K>(qualifiedName): HTMLCollectionOf<SVGElementTagNameMap[K]>

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10922

Type Parameters

K

K extends keyof SVGElementTagNameMap

Parameters

qualifiedName

K

Returns

HTMLCollectionOf<SVGElementTagNameMap[K]>

Inherited from

LitElement.getElementsByTagName

Call Signature

getElementsByTagName<K>(qualifiedName): HTMLCollectionOf<MathMLElementTagNameMap[K]>

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10923

Type Parameters

K

K extends keyof MathMLElementTagNameMap

Parameters

qualifiedName

K

Returns

HTMLCollectionOf<MathMLElementTagNameMap[K]>

Inherited from

LitElement.getElementsByTagName

Call Signature

getElementsByTagName<K>(qualifiedName): HTMLCollectionOf<HTMLElementDeprecatedTagNameMap[K]>

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10925

Type Parameters

K

K extends keyof HTMLElementDeprecatedTagNameMap

Parameters

qualifiedName

K

Returns

HTMLCollectionOf<HTMLElementDeprecatedTagNameMap[K]>

Deprecated

Inherited from

LitElement.getElementsByTagName

Call Signature

getElementsByTagName(qualifiedName): HTMLCollectionOf<Element>

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10926

Parameters

qualifiedName

string

Returns

HTMLCollectionOf<Element>

Inherited from

LitElement.getElementsByTagName

---

getElementsByTagNameNS()

Call Signature

getElementsByTagNameNS(namespaceURI, localName): HTMLCollectionOf<HTMLElement>

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10932

The Element.getElementsByTagNameNS() method returns a live HTMLCollection of elements with the given tag name belonging to the given namespace.

MDN Reference

Parameters

namespaceURI

"http://www.w3.org/1999/xhtml"

localName

string

Returns

HTMLCollectionOf<HTMLElement>

Inherited from

LitElement.getElementsByTagNameNS

Call Signature

getElementsByTagNameNS(namespaceURI, localName): HTMLCollectionOf<SVGElement>

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10933

Parameters

namespaceURI

"http://www.w3.org/2000/svg"

localName

string

Returns

HTMLCollectionOf<SVGElement>

Inherited from

LitElement.getElementsByTagNameNS

Call Signature

getElementsByTagNameNS(namespaceURI, localName): HTMLCollectionOf<MathMLElement>

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10934

Parameters

namespaceURI

"http://www.w3.org/1998/Math/MathML"

localName

string

Returns

HTMLCollectionOf<MathMLElement>

Inherited from

LitElement.getElementsByTagNameNS

Call Signature

getElementsByTagNameNS(namespace, localName): HTMLCollectionOf<Element>

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10935

Parameters

namespace

string | null

localName

string

Returns

HTMLCollectionOf<Element>

Inherited from

LitElement.getElementsByTagNameNS

---

getHTML()

getHTML(options?): string

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10941

The getHTML() method of the Element interface is used to serialize an element's DOM to an HTML string.

MDN Reference

Parameters

options?

GetHTMLOptions

Returns

string

Inherited from

LitElement.getHTML

---

getRootNode()

getRootNode(options?): Node

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21772

The getRootNode() method of the Node interface returns the context object's root, which optionally includes the shadow root if it is available.

MDN Reference

Parameters

options?

GetRootNodeOptions

Returns

Node

Inherited from

LitElement.getRootNode

---

hasAttribute()

hasAttribute(qualifiedName): boolean

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10947

The Element.hasAttribute() method returns a Boolean value indicating whether the specified element has the specified attribute or not.

MDN Reference

Parameters

qualifiedName

string

Returns

boolean

Inherited from

LitElement.hasAttribute

---

hasAttributeNS()

hasAttributeNS(namespace, localName): boolean

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10953

The hasAttributeNS() method of the Element interface returns a boolean value indicating whether the current element has the specified attribute with the specified namespace.

MDN Reference

Parameters

namespace

string | null

localName

string

Returns

boolean

Inherited from

LitElement.hasAttributeNS

---

hasAttributes()

hasAttributes(): boolean

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10959

The hasAttributes() method of the Element interface returns a boolean value indicating whether the current element has any attributes or not.

MDN Reference

Returns

boolean

Inherited from

LitElement.hasAttributes

---

hasChildNodes()

hasChildNodes(): boolean

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21778

The hasChildNodes() method of the Node interface returns a boolean value indicating whether the given Node has child nodes or not.

MDN Reference

Returns

boolean

Inherited from

LitElement.hasChildNodes

---

hasPointerCapture()

hasPointerCapture(pointerId): boolean

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10965

The hasPointerCapture() method of the pointer capture for the pointer identified by the given pointer ID.

MDN Reference

Parameters

pointerId

number

Returns

boolean

Inherited from

LitElement.hasPointerCapture

---

hidePopover()

hidePopover(): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13826

The hidePopover() method of the HTMLElement interface hides a popover element (i.e., one that has a valid popover attribute) by removing it from the top layer and styling it with display: none.

MDN Reference

Returns

void

Inherited from

LitElement.hidePopover

---

insertAdjacentElement()

insertAdjacentElement(where, element): Element | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10971

The insertAdjacentElement() method of the relative to the element it is invoked upon.

MDN Reference

Parameters

where

InsertPosition

element

Element

Returns

Element | null

Inherited from

LitElement.insertAdjacentElement

---

insertAdjacentHTML()

insertAdjacentHTML(position, string): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10977

The insertAdjacentHTML() method of the the resulting nodes into the DOM tree at a specified position.

MDN Reference

Parameters

position

InsertPosition

string

string

Returns

void

Inherited from

LitElement.insertAdjacentHTML

---

insertAdjacentText()

insertAdjacentText(where, data): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10983

The insertAdjacentText() method of the Element interface, given a relative position and a string, inserts a new text node at the given position relative to the element it is called from.

MDN Reference

Parameters

where

InsertPosition

data

string

Returns

void

Inherited from

LitElement.insertAdjacentText

---

insertBefore()

insertBefore<T>(node, child): T

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21784

The insertBefore() method of the Node interface inserts a node before a reference node as a child of a specified parent node.

MDN Reference

Type Parameters

T

T extends Node

Parameters

node

T

child

Node | null

Returns

T

Inherited from

LitElement.insertBefore

---

isDefaultNamespace()

isDefaultNamespace(namespace): boolean

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21790

The isDefaultNamespace() method of the Node interface accepts a namespace URI as an argument.

MDN Reference

Parameters

namespace

string | null

Returns

boolean

Inherited from

LitElement.isDefaultNamespace

---

isEqualNode()

isEqualNode(otherNode): boolean

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21796

The isEqualNode() method of the Node interface tests whether two nodes are equal.

MDN Reference

Parameters

otherNode

Node | null

Returns

boolean

Inherited from

LitElement.isEqualNode

---

isSameNode()

isSameNode(otherNode): boolean

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21802

The isSameNode() method of the Node interface is a legacy alias the for the === strict equality operator.

MDN Reference

Parameters

otherNode

Node | null

Returns

boolean

Inherited from

LitElement.isSameNode

---

lookupNamespaceURI()

lookupNamespaceURI(prefix): string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21808

The lookupNamespaceURI() method of the Node interface takes a prefix as parameter and returns the namespace URI associated with it on the given node if found (and null if not).

MDN Reference

Parameters

prefix

string | null

Returns

string | null

Inherited from

LitElement.lookupNamespaceURI

---

lookupPrefix()

lookupPrefix(namespace): string | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21814

The lookupPrefix() method of the Node interface returns a string containing the prefix for a given namespace URI, if present, and null if not.

MDN Reference

Parameters

namespace

string | null

Returns

string | null

Inherited from

LitElement.lookupPrefix

---

matches()

matches(selectors): boolean

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10989

The matches() method of the Element interface tests whether the element would be selected by the specified CSS selector.

MDN Reference

Parameters

selectors

string

Returns

boolean

Inherited from

LitElement.matches

---

normalize()

normalize(): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21820

The normalize() method of the Node interface puts the specified node and all of its sub-tree into a normalized form.

MDN Reference

Returns

void

Inherited from

LitElement.normalize

---

prepend()

prepend(...nodes): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:22702

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

Inherited from

LitElement.prepend

---

querySelector()

Call Signature

querySelector<K>(selectors): HTMLElementTagNameMap[K] | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:22708

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

MDN Reference

Type Parameters

K

K extends keyof HTMLElementTagNameMap

Parameters

selectors

K

Returns

HTMLElementTagNameMap[K] | null

Inherited from

LitElement.querySelector

Call Signature

querySelector<K>(selectors): SVGElementTagNameMap[K] | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:22709

Type Parameters

K

K extends keyof SVGElementTagNameMap

Parameters

selectors

K

Returns

SVGElementTagNameMap[K] | null

Inherited from

LitElement.querySelector

Call Signature

querySelector<K>(selectors): MathMLElementTagNameMap[K] | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:22710

Type Parameters

K

K extends keyof MathMLElementTagNameMap

Parameters

selectors

K

Returns

MathMLElementTagNameMap[K] | null

Inherited from

LitElement.querySelector

Call Signature

querySelector<K>(selectors): HTMLElementDeprecatedTagNameMap[K] | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:22712

Type Parameters

K

K extends keyof HTMLElementDeprecatedTagNameMap

Parameters

selectors

K

Returns

HTMLElementDeprecatedTagNameMap[K] | null

Deprecated

Inherited from

LitElement.querySelector

Call Signature

querySelector<E>(selectors): E | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:22713

Type Parameters

E

E extends Element = Element

Parameters

selectors

string

Returns

E | null

Inherited from

LitElement.querySelector

---

querySelectorAll()

Call Signature

querySelectorAll<K>(selectors): NodeListOf<HTMLElementTagNameMap[K]>

Defined in: node_modules/typescript/lib/lib.dom.d.ts:22719

Returns all element descendants of node that match selectors.

MDN Reference

Type Parameters

K

K extends keyof HTMLElementTagNameMap

Parameters

selectors

K

Returns

NodeListOf<HTMLElementTagNameMap[K]>

Inherited from

LitElement.querySelectorAll

Call Signature

querySelectorAll<K>(selectors): NodeListOf<SVGElementTagNameMap[K]>

Defined in: node_modules/typescript/lib/lib.dom.d.ts:22720

Type Parameters

K

K extends keyof SVGElementTagNameMap

Parameters

selectors

K

Returns

NodeListOf<SVGElementTagNameMap[K]>

Inherited from

LitElement.querySelectorAll

Call Signature

querySelectorAll<K>(selectors): NodeListOf<MathMLElementTagNameMap[K]>

Defined in: node_modules/typescript/lib/lib.dom.d.ts:22721

Type Parameters

K

K extends keyof MathMLElementTagNameMap

Parameters

selectors

K

Returns

NodeListOf<MathMLElementTagNameMap[K]>

Inherited from

LitElement.querySelectorAll

Call Signature

querySelectorAll<K>(selectors): NodeListOf<HTMLElementDeprecatedTagNameMap[K]>

Defined in: node_modules/typescript/lib/lib.dom.d.ts:22723

Type Parameters

K

K extends keyof HTMLElementDeprecatedTagNameMap

Parameters

selectors

K

Returns

NodeListOf<HTMLElementDeprecatedTagNameMap[K]>

Deprecated

Inherited from

LitElement.querySelectorAll

Call Signature

querySelectorAll<E>(selectors): NodeListOf<E>

Defined in: node_modules/typescript/lib/lib.dom.d.ts:22724

Type Parameters

E

E extends Element = Element

Parameters

selectors

string

Returns

NodeListOf<E>

Inherited from

LitElement.querySelectorAll

---

releasePointerCapture()

releasePointerCapture(pointerId): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:10995

The releasePointerCapture() method of the previously set for a specific (PointerEvent) pointer.

MDN Reference

Parameters

pointerId

number

Returns

void

Inherited from

LitElement.releasePointerCapture

---

remove()

remove(): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:7967

Removes node.

MDN Reference

Returns

void

Inherited from

LitElement.remove

---

removeAttribute()

removeAttribute(qualifiedName): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11001

The Element method removeAttribute() removes the attribute with the specified name from the element.

MDN Reference

Parameters

qualifiedName

string

Returns

void

Inherited from

LitElement.removeAttribute

---

removeAttributeNode()

removeAttributeNode(attr): Attr

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11013

The removeAttributeNode() method of the Element interface removes the specified Attr node from the element.

MDN Reference

Parameters

attr

Attr

Returns

Attr

Inherited from

LitElement.removeAttributeNode

---

removeAttributeNS()

removeAttributeNS(namespace, localName): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11007

The removeAttributeNS() method of the If you are working with HTML and you don't need to specify the requested attribute as being part of a specific namespace, use the Element.removeAttribute() method instead.

MDN Reference

Parameters

namespace

string | null

localName

string

Returns

void

Inherited from

LitElement.removeAttributeNS

---

removeChild()

removeChild<T>(child): T

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21826

The removeChild() method of the Node interface removes a child node from the DOM and returns the removed node.

MDN Reference

Type Parameters

T

T extends Node

Parameters

child

T

Returns

T

Inherited from

LitElement.removeChild

---

removeEventListener()

Call Signature

removeEventListener<K>(type, listener, options?): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13841

Type Parameters

K

K extends keyof HTMLElementEventMap

Parameters

type

K

listener

(this, ev) => any

options?

boolean | EventListenerOptions

Returns

void

Inherited from

LitElement.removeEventListener

Call Signature

removeEventListener(type, listener, options?): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13842

Parameters

type

string

listener

EventListenerOrEventListenerObject

options?

boolean | EventListenerOptions

Returns

void

Inherited from

LitElement.removeEventListener

---

replaceChild()

replaceChild<T>(node, child): T

Defined in: node_modules/typescript/lib/lib.dom.d.ts:21832

The replaceChild() method of the Node interface replaces a child node within the given (parent) node.

MDN Reference

Type Parameters

T

T extends Node

Parameters

node

Node

child

T

Returns

T

Inherited from

LitElement.replaceChild

---

replaceChildren()

replaceChildren(...nodes): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:22732

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

Inherited from

LitElement.replaceChildren

---

replaceWith()

replaceWith(...nodes): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:7975

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

Inherited from

LitElement.replaceWith

---

requestFullscreen()

requestFullscreen(options?): Promise<void>

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11019

The Element.requestFullscreen() method issues an asynchronous request to make the element be displayed in fullscreen mode.

MDN Reference

Parameters

options?

FullscreenOptions

Returns

Promise<void>

Inherited from

LitElement.requestFullscreen

---

requestPointerLock()

requestPointerLock(options?): Promise<void>

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11025

The requestPointerLock() method of the Element interface lets you asynchronously ask for the pointer to be locked on the given element.

MDN Reference

Parameters

options?

PointerLockOptions

Returns

Promise<void>

Inherited from

LitElement.requestPointerLock

---

scroll()

Call Signature

scroll(options?): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11031

The scroll() method of the Element interface scrolls the element to a particular set of coordinates inside a given element.

MDN Reference

Parameters

options?

ScrollToOptions

Returns

void

Inherited from

LitElement.scroll

Call Signature

scroll(x, y): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11032

Parameters

x

number

y

number

Returns

void

Inherited from

LitElement.scroll

---

scrollBy()

Call Signature

scrollBy(options?): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11038

The scrollBy() method of the Element interface scrolls an element by the given amount.

MDN Reference

Parameters

options?

ScrollToOptions

Returns

void

Inherited from

LitElement.scrollBy

Call Signature

scrollBy(x, y): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11039

Parameters

x

number

y

number

Returns

void

Inherited from

LitElement.scrollBy

---

scrollIntoView()

scrollIntoView(arg?): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11045

The Element interface's scrollIntoView() method scrolls the element's ancestor containers such that the element on which scrollIntoView() is called is visible to the user.

MDN Reference

Parameters

arg?

boolean | ScrollIntoViewOptions

Returns

void

Inherited from

LitElement.scrollIntoView

---

scrollTo()

Call Signature

scrollTo(options?): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11051

The scrollTo() method of the Element interface scrolls to a particular set of coordinates inside a given element.

MDN Reference

Parameters

options?

ScrollToOptions

Returns

void

Inherited from

LitElement.scrollTo

Call Signature

scrollTo(x, y): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11052

Parameters

x

number

y

number

Returns

void

Inherited from

LitElement.scrollTo

---

setAttribute()

setAttribute(qualifiedName, value): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11058

The setAttribute() method of the Element interface sets the value of an attribute on the specified element.

MDN Reference

Parameters

qualifiedName

string

value

string

Returns

void

Inherited from

LitElement.setAttribute

---

setAttributeNode()

setAttributeNode(attr): Attr | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11070

The setAttributeNode() method of the Element interface adds a new Attr node to the specified element.

MDN Reference

Parameters

attr

Attr

Returns

Attr | null

Inherited from

LitElement.setAttributeNode

---

setAttributeNodeNS()

setAttributeNodeNS(attr): Attr | null

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11076

The setAttributeNodeNS() method of the Element interface adds a new namespaced Attr node to an element.

MDN Reference

Parameters

attr

Attr

Returns

Attr | null

Inherited from

LitElement.setAttributeNodeNS

---

setAttributeNS()

setAttributeNS(namespace, qualifiedName, value): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11064

setAttributeNS adds a new attribute or changes the value of an attribute with the given namespace and name.

MDN Reference

Parameters

namespace

string | null

qualifiedName

string

value

string

Returns

void

Inherited from

LitElement.setAttributeNS

---

setHTMLUnsafe()

setHTMLUnsafe(html): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11082

The setHTMLUnsafe() method of the Element interface is used to parse a string of HTML into a DocumentFragment, optionally filtering out unwanted elements and attributes, and those that don't belong in the context, and then using it to replace the element's subtree in the DOM.

MDN Reference

Parameters

html

string

Returns

void

Inherited from

LitElement.setHTMLUnsafe

---

setPointerCapture()

setPointerCapture(pointerId): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11088

The setPointerCapture() method of the capture target of future pointer events.

MDN Reference

Parameters

pointerId

number

Returns

void

Inherited from

LitElement.setPointerCapture

---

showPopover()

showPopover(): void

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13832

The showPopover() method of the HTMLElement interface shows a Popover_API element (i.e., one that has a valid popover attribute) by adding it to the top layer.

MDN Reference

Returns

void

Inherited from

LitElement.showPopover

---

toggleAttribute()

toggleAttribute(qualifiedName, force?): boolean

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11094

The toggleAttribute() method of the present and adding it if it is not present) on the given element.

MDN Reference

Parameters

qualifiedName

string

force?

boolean

Returns

boolean

Inherited from

LitElement.toggleAttribute

---

togglePopover()

togglePopover(options?): boolean

Defined in: node_modules/typescript/lib/lib.dom.d.ts:13838

The togglePopover() method of the HTMLElement interface toggles a Popover_API element (i.e., one that has a valid popover attribute) between the hidden and showing states.

MDN Reference

Parameters

options?

boolean

Returns

boolean

Inherited from

LitElement.togglePopover

---

webkitMatchesSelector()

webkitMatchesSelector(selectors): boolean

Defined in: node_modules/typescript/lib/lib.dom.d.ts:11100

Parameters

selectors

string

Returns

boolean

Deprecated

This is a legacy alias of matches.

MDN Reference

Inherited from

LitElement.webkitMatchesSelector

---

addInitializer()

static addInitializer(initializer): void

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:275

Adds an initializer function to the class that is called during instance construction.

This is useful for code that runs against a ReactiveElement subclass, such as a decorator, that needs to do work for each instance, such as setting up a ReactiveController.

const myDecorator = (target: typeof ReactiveElement, key: string) => {
  target.addInitializer((instance: ReactiveElement) => {
    // This is run during construction of the element
    new MyController(instance);
  });
}

Decorating a field will then cause each instance to run an initializer that adds a controller:

class MyElement extends LitElement {
  @myDecorator foo;
}

Initializers are stored per-constructor. Adding an initializer to a subclass does not add it to a superclass. Since initializers are run in constructors, initializers will run in order of the class hierarchy, starting with superclasses and progressing to the instance's class.

Parameters

initializer

Initializer

Returns

void

Nocollapse

Inherited from

LitElement.addInitializer

---

finalize()

protected static finalize(): void

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:459

Finishes setting up the class so that it's ready to be registered as a custom element and instantiated.

This method is called by the ReactiveElement.observedAttributes getter. If you override the observedAttributes getter, you must either call super.observedAttributes to trigger finalization, or call finalize() yourself.

Returns

void

Nocollapse

Inherited from

LitElement.finalize

properties

elementProperties

static elementProperties: PropertyDeclarationMap

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:298

Memoized list of all element properties, including any superclass properties. Created lazily on user subclasses when finalizing the class.

Nocollapse

Inherited from

LitElement.elementProperties

---

properties

static properties: PropertyDeclarations

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:324

User-supplied object that maps property names to PropertyDeclaration objects containing options for configuring reactive properties. When a reactive property is set the element will update and render.

By default properties are public fields, and as such, they should be considered as primarily settable by element users, either via attribute or the property itself.

Generally, properties that are changed by the element should be private or protected fields and should use the state: true option. Properties marked as state do not reflect from the corresponding attribute

However, sometimes element code does need to set a public property. This should typically only be done in response to user interaction, and an event should be fired informing the user; for example, a checkbox sets its checked property when clicked and fires a changed event. Mutating public properties should typically not be done for non-primitive (object or array) properties. In other cases when an element needs to manage state, a private property set with the state: true option should be used. When needed, state properties can be initialized via public properties to facilitate complex interactions.

Nocollapse

Inherited from

LitElement.properties

---

createProperty()

static createProperty(name, options?): void

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:391

Creates a property accessor on the element prototype if one does not exist and stores a PropertyDeclaration for the property with the given options. The property setter calls the property's hasChanged property option or uses a strict identity check to determine whether or not to request an update.

This method may be overridden to customize properties; however, when doing so, it's important to call super.createProperty to ensure the property is setup correctly. This method calls getPropertyDescriptor internally to get a descriptor to install. To customize what properties do when they are get or set, override getPropertyDescriptor. To customize the options for a property, implement createProperty like this:

static createProperty(name, options) {
  options = Object.assign(options, {myOption: true});
  super.createProperty(name, options);
}

Parameters

name

PropertyKey

options?

PropertyDeclaration<unknown, unknown>

Returns

void

Nocollapse

Inherited from

LitElement.createProperty

---

getPropertyDescriptor()

protected static getPropertyDescriptor(name, key, options): PropertyDescriptor | undefined

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:419

Returns a property descriptor to be defined on the given named property. If no descriptor is returned, the property will not become an accessor. For example,

class MyElement extends LitElement {
  static getPropertyDescriptor(name, key, options) {
    const defaultDescriptor =
        super.getPropertyDescriptor(name, key, options);
    const setter = defaultDescriptor.set;
    return {
      get: defaultDescriptor.get,
      set(value) {
        setter.call(this, value);
        // custom action.
      },
      configurable: true,
      enumerable: true
    }
  }
}

Parameters

name

PropertyKey

key

string | symbol

options

PropertyDeclaration

Returns

PropertyDescriptor | undefined

Nocollapse

Inherited from

LitElement.getPropertyDescriptor

---

getPropertyOptions()

static getPropertyOptions(name): PropertyDeclaration<unknown, unknown>

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:434

Returns the property options associated with the given property. These options are defined with a PropertyDeclaration via the properties object or the @property decorator and are registered in createProperty(...).

Note, this method should be considered "final" and not overridden. To customize the options for a given property, override createProperty.

Parameters

name

PropertyKey

Returns

PropertyDeclaration<unknown, unknown>

Nocollapse

Final

Inherited from

LitElement.getPropertyOptions

rendering

renderOptions

readonly renderOptions: RenderOptions

Defined in: node_modules/lit-element/development/lit-element.d.ts:88

Inherited from

LitElement.renderOptions

---

renderRoot

readonly renderRoot: HTMLElement | DocumentFragment

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:491

Node or ShadowRoot into which element DOM should be rendered. Defaults to an open shadowRoot.

Inherited from

ClockComponent.renderRoot

---

shadowRootOptions

static shadowRootOptions: ShadowRootInit

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:470

Options used when calling attachShadow. Set this property to customize the options for the shadowRoot; for example, to create a closed shadowRoot: {mode: 'closed'}.

Note, these options are used in createRenderRoot. If this method is customized, options should be respected if possible.

Nocollapse

Inherited from

LitElement.shadowRootOptions

---

createRenderRoot()

protected createRenderRoot(): HTMLElement | DocumentFragment

Defined in: node_modules/lit-element/development/lit-element.d.ts:93

Returns

HTMLElement | DocumentFragment

Inherited from

LitElement.createRenderRoot

---

render()

protected render(): unknown

Defined in: node_modules/lit-element/development/lit-element.d.ts:150

Invoked on each update to perform rendering tasks. This method may return any value renderable by lit-html's ChildPart - typically a TemplateResult. Setting properties inside this method will not trigger the element to update.

Returns

unknown

Inherited from

LitElement.render

styles

elementStyles

static elementStyles: CSSResultOrNative[]

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:331

Memoized list of all element styles. Created lazily on user subclasses when finalizing the class.

Nocollapse

Inherited from

LitElement.elementStyles

---

styles?

static optional styles?: CSSResultGroup

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:358

Array of styles to apply to the element. The styles should be defined using the css tag function, via constructible stylesheets, or imported from native CSS module scripts.

Note on Content Security Policy:

Element styles are implemented with <style> tags when the browser doesn't support adopted StyleSheets. To use such <style> tags with the style-src CSP directive, the style-src value must either include 'unsafe-inline' or nonce-<base64-value> with <base64-value> replaced be a server-generated nonce.

To provide a nonce to use on generated <style> elements, set window.litNonce to a server-generated nonce in your page's HTML, before loading application code:

<script>
  // Generated and unique per request:
  window.litNonce = 'a1b2c3d4';
</script>

Nocollapse

Inherited from

LitElement.styles

---

finalizeStyles()

protected static finalizeStyles(styles?): CSSResultOrNative[]

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:485

Takes the styles the user supplied via the static styles property and returns the array of styles to apply to the element. Override this method to integrate into a style management system.

Styles are deduplicated preserving the last instance in the list. This is a performance optimization to avoid duplicated styles that can occur especially when composing via subclassing. The last item is kept to try to preserve the cascade order with the assumption that it's most important that last added styles override previous styles.

Parameters

styles?

CSSResultGroup

Returns

CSSResultOrNative[]

Nocollapse

Inherited from

LitElement.finalizeStyles

updates

hasUpdated

hasUpdated: boolean

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:509

Is set to true after the first update. The element code cannot assume that renderRoot exists before the element hasUpdated.

Inherited from

LitElement.hasUpdated

---

isUpdatePending

isUpdatePending: boolean

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:503

True if there is a pending update as a result of calling requestUpdate(). Should only be read.

Inherited from

LitElement.isUpdatePending

---

updateComplete

Get Signature

get updateComplete(): Promise<boolean>

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:692

Returns a Promise that resolves when the element has completed updating. The Promise value is a boolean that is true if the element completed the update without triggering another update. The Promise result is false if a property was set inside updated(). If the Promise is rejected, an exception was thrown during the update.

To await additional asynchronous work, override the getUpdateComplete method. For example, it is sometimes useful to await a rendered element before fulfilling this Promise. To do this, first await super.getUpdateComplete(), then any subsequent state.

Returns

Promise<boolean>

A promise of a boolean that resolves to true if the update completed without triggering another update.

Inherited from

LitElement.updateComplete

---

enableUpdating()

protected enableUpdating(_requestedUpdate): void

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:577

Note, this method should be considered final and not overridden. It is overridden on the element instance with a function that triggers the first update.

Parameters

_requestedUpdate

boolean

Returns

void

Inherited from

LitElement.enableUpdating

---

firstUpdated()

protected firstUpdated(_changedProperties): void

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:763

Invoked when the element is first updated. Implement to perform one time work on the element after update.

firstUpdated() {
  this.renderRoot.getElementById('my-text-area').focus();
}

Setting properties inside this method will trigger the element to update again after this update cycle completes.

Parameters

_changedProperties

PropertyValueMap<any> | Map<PropertyKey, unknown>

Map of changed properties with old values

Returns

void

Inherited from

LitElement.firstUpdated

---

getUpdateComplete()

protected getUpdateComplete(): Promise<boolean>

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:716

Override point for the updateComplete promise.

It is not safe to override the updateComplete getter directly due to a limitation in TypeScript which means it is not possible to call a superclass getter (e.g. super.updateComplete.then(...)) when the target language is ES5 (https://github.com/microsoft/TypeScript/issues/338). This method should be overridden instead. For example:

class MyElement extends LitElement {
  override async getUpdateComplete() {
    const result = await super.getUpdateComplete();
    await this._myChild.updateComplete;
    return result;
  }
}

Returns

Promise<boolean>

A promise of a boolean that resolves to true if the update completed without triggering another update.

Inherited from

LitElement.getUpdateComplete

---

performUpdate()

protected performUpdate(): void

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:652

Performs an element update. Note, if an exception is thrown during the update, firstUpdated and updated will not be called.

Call performUpdate() to immediately process a pending update. This should generally not be needed, but it can be done in rare cases when you need to update synchronously.

Returns

void

Inherited from

LitElement.performUpdate

---

requestUpdate()

requestUpdate(name?, oldValue?, options?, useNewValue?, newValue?): void

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:619

Requests an update which is processed asynchronously. This should be called when an element should update based on some state not triggered by setting a reactive property. In this case, pass no arguments. It should also be called when manually implementing a property setter. In this case, pass the property name and oldValue to ensure that any configured property options are honored.

Parameters

name?

PropertyKey

name of requesting property

oldValue?

unknown

old value of requesting property

options?

PropertyDeclaration<unknown, unknown>

property options to use instead of the previously configured options

useNewValue?

boolean

if true, the newValue argument is used instead of reading the property value. This is important to use if the reactive property is a standard private accessor, as opposed to a plain property, since private members can't be dynamically read by name.

newValue?

unknown

the new value of the property. This is only used if useNewValue is true.

Returns

void

Inherited from

LitElement.requestUpdate

---

scheduleUpdate()

protected scheduleUpdate(): void | Promise<unknown>

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:641

Schedules an element update. You can override this method to change the timing of updates by returning a Promise. The update will await the returned Promise, and you should resolve the Promise to allow the update to proceed. If this method is overridden, super.scheduleUpdate() must be called.

For instance, to schedule updates to occur just before the next frame:

override protected async scheduleUpdate(): Promise<unknown> {
  await new Promise((resolve) => requestAnimationFrame(() => resolve()));
  super.scheduleUpdate();
}

Returns

void | Promise<unknown>

Inherited from

LitElement.scheduleUpdate

---

shouldUpdate()

protected shouldUpdate(_changedProperties): boolean

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:725

Controls whether or not update() should be called when the element requests an update. By default, this method always returns true, but this can be customized to control when to update.

Parameters

_changedProperties

PropertyValueMap<any> | Map<PropertyKey, unknown>

Map of changed properties with old values

Returns

boolean

Inherited from

LitElement.shouldUpdate

---

update()

protected update(changedProperties): void

Defined in: node_modules/lit-element/development/lit-element.d.ts:101

Updates the element. This method reflects property values to attributes and calls render to render DOM via lit-html. Setting properties inside this method will not trigger another update.

Parameters

changedProperties

PropertyValueMap<any> | Map<PropertyKey, unknown>

Map of changed properties with old values

Returns

void

Inherited from

LitElement.update

---

updated()

protected updated(_changedProperties): void

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:746

Invoked whenever the element is updated. Implement to perform post-updating tasks via DOM APIs, for example, focusing an element.

Setting properties inside this method will trigger the element to update again after this update cycle completes.

Parameters

_changedProperties

PropertyValueMap<any> | Map<PropertyKey, unknown>

Map of changed properties with old values

Returns

void

Inherited from

LitElement.updated

---

willUpdate()

protected willUpdate(_changedProperties): void

Defined in: node_modules/@lit/reactive-element/development/reactive-element.d.ts:674

Invoked before update() to compute values needed during the update.

Implement willUpdate to compute property values that depend on other properties and are used in the rest of the update process.

willUpdate(changedProperties) {
  // only need to check changed properties for an expensive computation.
  if (changedProperties.has('firstName') || changedProperties.has('lastName')) {
    this.sha = computeSHA(`${this.firstName} ${this.lastName}`);
  }
}

render() {
  return html`SHA: ${this.sha}`;
}

Parameters

_changedProperties

PropertyValueMap<any> | Map<PropertyKey, unknown>

Returns

void

Inherited from

LitElement.willUpdate