HTMLElement - Web APIs 编辑

The HTMLElement interface represents any HTML element. Some elements directly implement this interface, while others implement it via an interface that inherits it.

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Properties

Inherits properties from its parent, Element, and implements those from DocumentAndElementEventHandlers, ElementCSSInlineStyle, GlobalEventHandlers, HTMLOrForeignElement and TouchEventHandlers.

HTMLElement.accessKey

Is a DOMString representing the access key assigned to the element.

HTMLElement.accessKeyLabel Read only

Returns a DOMString containing the element's assigned access key.

HTMLElement.contentEditable

Is a DOMString, where a value of true means the element is editable and a value of false means it isn't.

HTMLElement.isContentEditable Read only

Returns a Boolean that indicates whether or not the content of the element can be edited.

HTMLElement.contextMenu

Is a HTMLMenuElement representing the contextual menu associated with the element. It may be null.

HTMLOrForeignElement.dataset Read only

Returns a DOMStringMap with which script can read and write the element's custom data attributes (data-*) .

HTMLElement.dir

Is a DOMString, reflecting the dir global attribute, representing the directionality of the element. Possible values are "ltr", "rtl", and "auto".

HTMLElement.draggable

Is a Boolean indicating if the element can be dragged.

HTMLElement.hidden

Is a Boolean indicating if the element is hidden or not.

HTMLElement.inert

Is a Boolean indicating whether the user agent must act as though the given node is absent for the purposes of user interaction events, in-page text searches ("find in page"), and text selection.

HTMLElement.innerText

Represents the "rendered" text content of a node and its descendants. As a getter, it approximates the text the user would get if they highlighted the contents of the element with the cursor and then copied it to the clipboard.

HTMLElement.itemScope

Is a Boolean representing the item scope.

HTMLElement.itemType Read only

Returns a DOMSettableTokenList…

HTMLElement.itemId

Is a DOMString representing the item ID.

HTMLElement.itemRef Read only

Returns a DOMSettableTokenList…

HTMLElement.itemProp Read only

Returns a DOMSettableTokenList…

HTMLElement.itemValue

Returns a Object representing the item value.

HTMLElement.lang

Is a DOMString representing the language of an element's attributes, text, and element contents.

HTMLElement.noModule

Is a Boolean indicating whether an import script can be executed in user agents that support module scripts.

HTMLOrForeignElement.nonce

Returns the cryptographic number used once that is used by Content Security Policy to determine whether a given fetch will be allowed to proceed.

HTMLElement.offsetHeight Read only

Returns a double containing the height of an element, relative to the layout.

HTMLElement.offsetLeft Read only

Returns a double, the distance from this element's left border to its offsetParent's left border.

HTMLElement.offsetParent Read only

Returns a Element that is the element from which all offset calculations are currently computed.

HTMLElement.offsetTop Read only

Returns a double, the distance from this element's top border to its offsetParent's top border.

HTMLElement.offsetWidth Read only

Returns a double containing the width of an element, relative to the layout.

HTMLElement.properties Read only

Returns a HTMLPropertiesCollection…

HTMLElement.spellcheck

Is a Boolean that controls spell-checking. It is present on all HTML elements, though it doesn't have an effect on all of them.

HTMLElement.style

Is a CSSStyleDeclaration, an object representing the declarations of an element's style attributes.

HTMLOrForeignElement.tabIndex

Is a long representing the position of the element in the tabbing order.

HTMLElement.title

Is a DOMString containing the text that appears in a popup box when mouse is over the element.

HTMLElement.translate

Is a Boolean representing the translation.

Event handlers

Most event handler properties, of the form onXYZ, are defined on the DocumentAndElementEventHandlers, GlobalEventHandlers or TouchEventHandlers interfaces and implemented by HTMLElement. In addition, the following handlers are specific to HTMLElement.

HTMLElement.oncopy

Returns the event handling code for the copy event (bug 280959).

HTMLElement.oncut

Returns the event handling code for the cut event (bug 280959).

HTMLElement.onpaste

Returns the event handling code for the paste event (bug 280959).

TouchEventHandlers.ontouchstart

Returns the event handling code for the touchstart event.

TouchEventHandlers.ontouchend

Returns the event handling code for the touchend event.

TouchEventHandlers.ontouchmove

Returns the event handling code for the touchmove event.

TouchEventHandlers.ontouchenter

Returns the event handling code for the touchenter event.

TouchEventHandlers.ontouchleave

Returns the event handling code for the touchleave event.

TouchEventHandlers.ontouchcancel

Returns the event handling code for the touchcancel event.

Methods

Inherits methods from its parent, Element, and implements those from DocumentAndElementEventHandlers, ElementCSSInlineStyle, GlobalEventHandlers, HTMLOrForeignElement and TouchEventHandlers.

HTMLElement.attachInternals()

Attaches an ElementInternals instance to the custom element.

HTMLOrForeignElement.blur()

Removes keyboard focus from the currently focused element.

HTMLElement.click()

Sends a mouse click event to the element.

HTMLOrForeignElement.focus()

Makes the element the current keyboard focus.

HTMLElement.forceSpellCheck()

Runs the spell checker on the element's contents.

Events

Listen to these events using addEventListener() or by assigning an event listener to the oneventname property of this interface.

invalid

Fired when an element does not satisfy its constraints during constraint validation.
Also available via the oninvalid property.

Animation events

animationcancel

Fired when an animation unexpectedly aborts.
Also available via the onanimationcancel property.

animationend

Fired when an animation has completed normally.
Also available via the onanimationend property.

animationiteration

Fired when an animation iteration has completed.
Also available via the onanimationiteration property.

animationstart

Fired when an animation starts.
Also available via the onanimationstart property.

Input events

beforeinput

Fired when the value of an <input>, <select>, or <textarea> element is about to be modified.

input

Fired when the value of an <input>, <select>, or <textarea> element has been changed.
Also available via the oninput property.

change

Fired when the value of an <input>, <select>, or <textarea> element has been changed and committed by the user. Unlike the input event, the change event is not necessarily fired for each alteration to an element's value.

Pointer events

gotpointercapture

Fired when an element captures a pointer using setPointerCapture().
Also available via the ongotpointercapture property.

lostpointercapture

Fired when a captured pointer is released.
Also available via the onlostpointercapture property.

pointercancel

Fired when a pointer event is canceled.
Also available via the onpointercancel property.

pointerdown

Fired when a pointer becomes active.
Also available via the onpointerdown property.

pointerenter

Fired when a pointer is moved into the hit test boundaries of an element or one of its descendants.
Also available via the onpointerenter property.

pointerleave

Fired when a pointer is moved out of the hit test boundaries of an element.
Also available via the onpointerleave property.

pointermove

Fired when a pointer changes coordinates.
Also available via the onpointermove property.

pointerout

Fired when a pointer is moved out of the hit test boundaries of an element (among other reasons).
Also available via the onpointerout property.

pointerover

Fired when a pointer is moved into an element's hit test boundaries.
Also available via the onpointerover property.

pointerup

Fired when a pointer is no longer active.
Also available via the onpointerup property.

Transition events

transitioncancel

Fired when a CSS transition is canceled.
Also available via the ontransitioncancel property.

transitionend

Fired when a CSS transition has completed.
Also available via the ontransitionend property.

transitionrun

Fired when a CSS transition is first created.
Also available via the ontransitionrun property.

transitionstart

Fired when a CSS transition has actually started.
Also available via the ontransitionstart property.

Specifications

Browser compatibility

BCD tables only load in the browser

See also

• Element