The StorageEvent
interface is implemented by the storage
event, which is sent to a window when a storage area the window has access to is changed within the context of another document.
On this page
StorageEvent
Constructor
-
StorageEvent()
-
Returns a newly constructed
StorageEvent
object.
Instance properties
In addition to the properties listed below, this interface inherits the properties of its parent interface, Event
.
key
Read only-
Returns a string that represents the key changed. The
key
attribute isnull
when the change is caused by the storageclear()
method. newValue
Read only-
Returns a string with the new value of the
key
. This value isnull
when the change has been invoked by storageclear()
method, or thekey
has been removed from the storage. oldValue
Read only-
Returns a string with the original value of the
key
. This value isnull
when thekey
has been newly added and therefore doesn't have any previous value. storageArea
Read only-
Returns a
Storage
object that represents the storage that was affected. url
Read only-
Returns string with the URL of the document whose
key
changed.
Instance methods
In addition to the methods listed below, this interface inherits the methods of its parent interface, Event
.
initStorageEvent()
Deprecated-
Initializes the event in a manner analogous to the similarly-named
initEvent()
method in the DOM Events interfaces. Use the constructor instead.
Specifications
Specification |
---|
HTML Standard # the-storageevent-interface |
Browser compatibility
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
StorageEvent |
17 | 17 | 13 | No | 15 | 6 | 4.4 | 18 | 14 | 14 | 6 | 1.0 |
StorageEvent |
1 | 12 | 13 | 9 | ≤12.1 | 4 | ≤37 | 18 | 14 | ≤12.1 | 3 | 1.0 |
initStorageEvent |
4 | 12 | 13 | 9 | ≤12.1 | 4 | ≤37 | 18 | 14 | ≤12.1 | 3 | 1.0 |
key |
1 | 12 | 13 | 9 | ≤12.1 | 4 | ≤37 | 18 | 14 | ≤12.1 | 3 | 1.0 |
newValue |
1 | 12 | 13 | 9 | ≤12.1 | 4 | ≤37 | 18 | 14 | ≤12.1 | 3 | 1.0 |
oldValue |
1 | 12 | 13 | 9 | ≤12.1 | 4 | ≤37 | 18 | 14 | ≤12.1 | 3 | 1.0 |
storageArea |
3 | 12 | 13 | 9 | ≤12.1 | 4 | ≤37 | 18 | 14 | ≤12.1 | 3 | 1.0 |
url |
6 | 12 | 13 | 9 | ≤12.1 | 5 | 3 | 18 | 14 | ≤12.1 | 5 | 1.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/StorageEvent