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.

MDN Reference

interface KeyboardEvent {
    AT_TARGET: 2;
    BUBBLING_PHASE: 3;
    CAPTURING_PHASE: 1;
    DOM_KEY_LOCATION_LEFT: 1;
    DOM_KEY_LOCATION_NUMPAD: 3;
    DOM_KEY_LOCATION_RIGHT: 2;
    DOM_KEY_LOCATION_STANDARD: 0;
    NONE: 0;
    altKey: boolean;
    bubbles: boolean;
    cancelBubble: boolean;
    cancelable: boolean;
    charCode: number;
    code: string;
    composed: boolean;
    ctrlKey: boolean;
    currentTarget: EventTarget;
    defaultPrevented: boolean;
    detail: number;
    eventPhase: number;
    isComposing: boolean;
    isTrusted: boolean;
    key: string;
    keyCode: number;
    location: number;
    metaKey: boolean;
    repeat: boolean;
    returnValue: boolean;
    shiftKey: boolean;
    srcElement: EventTarget;
    target: EventTarget;
    timeStamp: number;
    type: string;
    view: Window;
    which: number;
    composedPath(): EventTarget[];
    getModifierState(keyArg): boolean;
    initEvent(type, bubbles?, cancelable?): void;
    initKeyboardEvent(typeArg, bubblesArg?, cancelableArg?, viewArg?, keyArg?, locationArg?, ctrlKey?, altKey?, shiftKey?, metaKey?): void;
    initUIEvent(typeArg, bubblesArg?, cancelableArg?, viewArg?, detailArg?): void;
    preventDefault(): void;
    stopImmediatePropagation(): void;
    stopPropagation(): void;
}

Hierarchy (view full)

Properties

AT_TARGET BUBBLING_PHASE CAPTURING_PHASE DOM_KEY_LOCATION_LEFT DOM_KEY_LOCATION_NUMPAD DOM_KEY_LOCATION_RIGHT DOM_KEY_LOCATION_STANDARD NONE altKey bubbles cancelBubble cancelable charCode code composed ctrlKey currentTarget defaultPrevented detail eventPhase isComposing isTrusted key keyCode location metaKey repeat returnValue shiftKey srcElement target timeStamp type view which

Methods

composedPath getModifierState initEvent initKeyboardEvent initUIEvent preventDefault stopImmediatePropagation stopPropagation

Properties

Readonly AT_TARGET

AT_TARGET: 2

Readonly BUBBLING_PHASE

BUBBLING_PHASE: 3

Readonly CAPTURING_PHASE

CAPTURING_PHASE: 1

Readonly DOM_KEY_LOCATION_LEFT

DOM_KEY_LOCATION_LEFT: 1

Readonly DOM_KEY_LOCATION_NUMPAD

DOM_KEY_LOCATION_NUMPAD: 3

Readonly DOM_KEY_LOCATION_RIGHT

DOM_KEY_LOCATION_RIGHT: 2

Readonly DOM_KEY_LOCATION_STANDARD

DOM_KEY_LOCATION_STANDARD: 0

Readonly NONE

NONE: 0

Readonly altKey

altKey: boolean

MDN Reference

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.

MDN Reference

cancelBubble

cancelBubble: boolean

Deprecated

MDN Reference

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.

MDN Reference

Readonly charCode

charCode: number

Deprecated

MDN Reference

Readonly code

code: string

MDN Reference

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.

MDN Reference

Readonly ctrlKey

ctrlKey: boolean

MDN Reference

Readonly currentTarget

currentTarget: EventTarget

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

MDN Reference

Readonly defaultPrevented

defaultPrevented: boolean

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

MDN Reference

Readonly detail

detail: number

MDN Reference

Readonly eventPhase

eventPhase: number

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

MDN Reference

Readonly isComposing

isComposing: boolean

MDN Reference

Readonly isTrusted

isTrusted: boolean

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

MDN Reference

Readonly key

key: string

MDN Reference

Readonly keyCode

keyCode: number

Deprecated

MDN Reference

Readonly location

location: number

MDN Reference

Readonly metaKey

metaKey: boolean

MDN Reference

Readonly repeat

repeat: boolean

MDN Reference

returnValue

returnValue: boolean

Deprecated

MDN Reference

Readonly shiftKey

shiftKey: boolean

MDN Reference

Readonly srcElement

srcElement: EventTarget

Deprecated

MDN Reference

Readonly target

target: EventTarget

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

MDN Reference

Readonly timeStamp

timeStamp: number

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

MDN Reference

Readonly type

type: string

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

MDN Reference

Readonly view

view: Window

MDN Reference

Readonly which

which: number

Deprecated

MDN Reference

Methods

composedPath

  • composedPath(): EventTarget[]

  • 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.

    MDN Reference

    Returns EventTarget[]

getModifierState

  • getModifierState(keyArg): boolean

  • MDN Reference

    Parameters

    • keyArg: string

    Returns boolean

initEvent

  • initEvent(type, bubbles?, cancelable?): void

  • Parameters

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

    Returns void

    Deprecated

    MDN Reference

initKeyboardEvent

  • initKeyboardEvent(typeArg, bubblesArg?, cancelableArg?, viewArg?, keyArg?, locationArg?, ctrlKey?, altKey?, shiftKey?, metaKey?): void

  • Parameters

    • typeArg: string
    • Optional bubblesArg: boolean
    • Optional cancelableArg: boolean
    • Optional viewArg: Window
    • Optional keyArg: string
    • Optional locationArg: number
    • Optional ctrlKey: boolean
    • Optional altKey: boolean
    • Optional shiftKey: boolean
    • Optional metaKey: boolean

    Returns void

    Deprecated

initUIEvent

  • initUIEvent(typeArg, bubblesArg?, cancelableArg?, viewArg?, detailArg?): void

  • Parameters

    • typeArg: string
    • Optional bubblesArg: boolean
    • Optional cancelableArg: boolean
    • Optional viewArg: Window
    • Optional detailArg: number

    Returns void

    Deprecated

    MDN Reference

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.

    MDN Reference

    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.

    MDN Reference

    Returns void

stopPropagation

  • stopPropagation(): void

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

    MDN Reference

    Returns void

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AT_TARGETBUBBLING_PHASECAPTURING_PHASEDOM_KEY_LOCATION_LEFTDOM_KEY_LOCATION_NUMPADDOM_KEY_LOCATION_RIGHTDOM_KEY_LOCATION_STANDARDNONEaltKeybubblescancelBubblecancelablecharCodecodecomposedctrlKeycurrentTargetdefaultPreventeddetaileventPhaseisComposingisTrustedkeykeyCodelocationmetaKeyrepeatreturnValueshiftKeysrcElementtargettimeStamptypeviewwhichcomposedPathgetModifierStateinitEventinitKeyboardEventinitUIEventpreventDefaultstopImmediatePropagationstopPropagation