WindowEventHandlers.onstorage

The onstorage property of the WindowEventHandlers mixin is the EventHandler for processing storage events. These events fire when a storage area is changed (e.g., a new item is stored.)

Syntax

 window.onstorage = function(event) { ... };

Example

This example logs the value for a key whenever it changes.

window.onstorage = function(e) {
  console.log('The ' + e.key +
    ' key has been changed from ' + e.oldValue +
    ' to ' + e.newValue + '.');
};

Specifications

Browser compatibility