Interface StorageEvent

A StorageEvent is sent to a window when a storage area it has access to is changed within the context of another document.

MDN Reference

interface StorageEvent {
    AT_TARGET: 2;
    BUBBLING_PHASE: 3;
    CAPTURING_PHASE: 1;
    NONE: 0;
    bubbles: boolean;
    cancelBubble: boolean;
    cancelable: boolean;
    composed: boolean;
    currentTarget: null | EventTarget;
    defaultPrevented: boolean;
    eventPhase: number;
    isTrusted: boolean;
    key: null | string;
    newValue: null | string;
    oldValue: null | string;
    returnValue: boolean;
    srcElement: null | EventTarget;
    storageArea: null | Storage;
    target: null | EventTarget;
    timeStamp: number;
    type: string;
    url: string;
    composedPath(): EventTarget[];
    initEvent(type: string, bubbles?: boolean, cancelable?: boolean): void;
    initStorageEvent(type: string, bubbles?: boolean, cancelable?: boolean, key?: null | string, oldValue?: null | string, newValue?: null | string, url?: string | URL, storageArea?: null | Storage): void;
    preventDefault(): void;
    stopImmediatePropagation(): void;
    stopPropagation(): void;
}

Hierarchy

  • Event
    • StorageEvent

Properties

AT_TARGET: 2
BUBBLING_PHASE: 3
CAPTURING_PHASE: 1
NONE: 0
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.

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cancelBubble: boolean

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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.

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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.

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currentTarget: null | EventTarget

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

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defaultPrevented: boolean

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

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eventPhase: number

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

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isTrusted: boolean

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

MDN Reference

key: null | string

Returns the key of the storage item being changed.

MDN Reference

newValue: null | string

Returns the new value of the key of the storage item whose value is being changed.

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oldValue: null | string

Returns the old value of the key of the storage item whose value is being changed.

MDN Reference

returnValue: boolean

MDN Reference

srcElement: null | EventTarget

MDN Reference

storageArea: null | Storage

Returns the Storage object that was affected.

MDN Reference

target: null | EventTarget

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

MDN Reference

timeStamp: number

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

MDN Reference

type: string

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

MDN Reference

url: string

Returns the URL of the document whose storage item changed.

MDN Reference

Methods

  • 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[]

  • Parameters

    • type: string
    • Optionalbubbles: boolean
    • Optionalcancelable: boolean

    Returns void

    MDN Reference

  • Parameters

    • type: string
    • Optionalbubbles: boolean
    • Optionalcancelable: boolean
    • Optionalkey: null | string
    • OptionaloldValue: null | string
    • OptionalnewValue: null | string
    • Optionalurl: string | URL
    • OptionalstorageArea: null | Storage

    Returns void

    MDN Reference

  • 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

  • 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.

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    Returns void

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

    MDN Reference

    Returns void