StorageEvent: StorageEvent() constructor

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since April 2018.

The StorageEvent() constructor creates a new StorageEvent object.

Syntax

new StorageEvent(type)
new StorageEvent(type, options)

A string with the name of the type of the StorageEvent. It is case-sensitive and browsers set it to storage.

An object that, in addition of the properties defined in Event(), has the following properties:

key Optional: A string that represents the key for the storage item that changed. Defaults to null.
oldValue Optional: A string containing the original value of the storage item. Defaults to null.
newValue Optional: A string with the new value of the key. Defaults to null.
url: A string with the URL of the document whose storage changed.
storageArea Optional: A Storage object that represents the storage that was affected. Defaults to null.

This feature does not appear to be defined in any specification.

	desktop					mobile							server
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS	Deno
`StorageEvent()` constructor	Chrome – Full support Chrome 17 (Release date: 2012-02-08) footnote Full support	Edge – Full support Edge 17 (Release date: 2018-04-30) footnote Full support	Firefox – Full support Firefox 13 (Release date: 2012-06-05) footnote Full support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 6 (Release date: 2012-07-25) footnote Full support	Chrome Android – Full support Chrome Android 18 (Release date: 2012-06-27) footnote Full support	Firefox for Android – Full support Firefox for Android 14 (Release date: 2012-06-26) footnote Full support	Opera Android – Full support Opera Android 14 (Release date: 2013-05-21) footnote Full support	Safari on iOS – Full support Safari on iOS 6 (Release date: 2012-09-10) footnote Full support	Samsung Internet – Full support Samsung Internet 1 (Release date: 2013-04-27) footnote Full support	WebView Android – Full support WebView Android 4.4 (Release date: 2013-12-09) footnote Full support	WebView on iOS – Full support WebView on iOS 6 (Release date: 2012-09-10) footnote Full support	Deno – No support Deno footnote No support

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