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The WindowEventHandlers.onstorage property contains an event handler that runs when the storage event fires. This occurs when a storage area is changed (e.g. a new item is stored.)
Syntax
windowObj.onstorage = function() { ... };
Examples
window.onstorage = function(e) {
console.log('The ' + e.key + ' key has been changed from ' + e.oldValue + ' to ' + e.newValue + '.');
};
Specifications
| Specification | Status | Comment |
|---|---|---|
| WHATWG HTML Living Standard The definition of 'onstorage' in that specification. |
Living Standard |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| Basic support | ? | 45 (45) | ? | ? | ? |
| Feature | Android | Android Webview | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|---|---|
| Basic support | ? | ? | 45.0 (45) | ? | ? | ? | ? | ? |