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Interface KeyboardEvent

KeyboardEvent objects describe a user interaction with the keyboard; each event describes a single interaction between the user and a key (or combination of a key with modifier keys) on the keyboard.

Hierarchy

Index

Properties

Readonly AT_TARGET

AT_TARGET: number

Readonly BUBBLING_PHASE

BUBBLING_PHASE: number

Readonly CAPTURING_PHASE

CAPTURING_PHASE: number

Readonly DOM_KEY_LOCATION_LEFT

DOM_KEY_LOCATION_LEFT: number

Readonly DOM_KEY_LOCATION_NUMPAD

DOM_KEY_LOCATION_NUMPAD: number

Readonly DOM_KEY_LOCATION_RIGHT

DOM_KEY_LOCATION_RIGHT: number

Readonly DOM_KEY_LOCATION_STANDARD

DOM_KEY_LOCATION_STANDARD: number

Readonly NONE

NONE: number

UIEvent

UIEvent: { constructor: any; prototype: UIEvent }

Type declaration

  • constructor: function
    • Parameters

      Returns UIEvent

  • prototype: UIEvent

Readonly altKey

altKey: boolean

Readonly bubbles

bubbles: boolean

Returns true or false depending on how event was initialized. True if event goes through its target's ancestors in reverse tree order, and false otherwise.

cancelBubble

cancelBubble: boolean

Readonly cancelable

cancelable: boolean

Returns true or false depending on how event was initialized. Its return value does not always carry meaning, but true can indicate that part of the operation during which event was dispatched, can be canceled by invoking the preventDefault() method.

char

char: string
deprecated

Readonly charCode

charCode: number
deprecated

Readonly code

code: string

Readonly composed

composed: boolean

Returns true or false depending on how event was initialized. True if event invokes listeners past a ShadowRoot node that is the root of its target, and false otherwise.

Readonly ctrlKey

ctrlKey: boolean

Readonly currentTarget

currentTarget: EventTarget | null

Returns the object whose event listener's callback is currently being invoked.

Readonly defaultPrevented

defaultPrevented: boolean

Returns true if preventDefault() was invoked successfully to indicate cancelation, and false otherwise.

Readonly detail

detail: number

Readonly eventPhase

eventPhase: number

Returns the event's phase, which is one of NONE, CAPTURING_PHASE, AT_TARGET, and BUBBLING_PHASE.

Readonly isComposing

isComposing: boolean

Readonly isTrusted

isTrusted: boolean

Returns true if event was dispatched by the user agent, and false otherwise.

Readonly key

key: string

Readonly keyCode

keyCode: number
deprecated

Readonly location

location: number

Readonly metaKey

metaKey: boolean

Readonly repeat

repeat: boolean

returnValue

returnValue: boolean

Readonly shiftKey

shiftKey: boolean

Readonly srcElement

srcElement: EventTarget | null
deprecated

Readonly target

target: EventTarget | null

Returns the object to which event is dispatched (its target).

Readonly timeStamp

timeStamp: number

Returns the event's timestamp as the number of milliseconds measured relative to the time origin.

Readonly type

type: string

Returns the type of event, e.g. "click", "hashchange", or "submit".

Readonly view

view: Window | null

Readonly which

which: number
deprecated

Methods

composedPath

  • Returns the invocation target objects of event's path (objects on which listeners will be invoked), except for any nodes in shadow trees of which the shadow root's mode is "closed" that are not reachable from event's currentTarget.

    Returns EventTarget[]

getModifierState

  • getModifierState(keyArg: string): boolean
  • Parameters

    • keyArg: string

    Returns boolean

initEvent

  • initEvent(type: string, bubbles?: boolean, cancelable?: boolean): void
  • Parameters

    • type: string
    • Optional bubbles: boolean
    • Optional cancelable: boolean

    Returns void

preventDefault

  • preventDefault(): void
  • If invoked when the cancelable attribute value is true, and while executing a listener for the event with passive set to false, signals to the operation that caused event to be dispatched that it needs to be canceled.

    Returns void

stopImmediatePropagation

  • stopImmediatePropagation(): void
  • Invoking this method prevents event from reaching any registered event listeners after the current one finishes running and, when dispatched in a tree, also prevents event from reaching any other objects.

    Returns void

stopPropagation

  • stopPropagation(): void
  • When dispatched in a tree, invoking this method prevents event from reaching any objects other than the current object.

    Returns void

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