The onstorage
property of the
WindowEventHandlers
mixin is an EventHandler
for
processing storage
events.
The storage
event fires when a storage area has been changed in the
context of another document.
Syntax
window.onstorage = functionRef;
Value
functionRef
is a function name or a function
expression. This function receives a StorageEvent
as its sole
argument.
Example
This example logs the value for a storage key whenever it changes in another document.
window.onstorage = function(e) {
console.log('The ' + e.key +
' key has been changed from ' + e.oldValue +
' to ' + e.newValue + '.');
};
Specifications
Specification | Status | Comment |
---|---|---|
Unknown The definition of 'onstorage' in that specification. |
Living Standard |
Browser compatibility
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