WindowEventHandlers.onstorage

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