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.
StorageEvent
Constructor
-
StorageEvent()
-
Returns a newly constructed
StorageEvent
object.
Properties
In addition to the properties listed below, this interface inherits the properties of its parent interface, Event
.
-
key
Read only -
Returns a
DOMString
that represents the key changed. Thekey
attribute isnull
when the change is caused by the storageclear()
method. -
newValue
Read only -
Returns a
DOMString
with the new value of thekey
. 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
DOMString
with the original value of thekey
. 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
DOMString
with the URL of the document whosekey
changed.
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 |
1
|
12
|
13
|
9
|
≤12.1
|
4
|
≤37
|
18
|
14
|
≤12.1
|
3
|
1.0
|
StorageEvent |
17
|
17
|
13
|
No
|
15
|
6
|
4.4
|
18
|
14
|
14
|
6
|
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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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/StorageEvent