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Storage key() Method

❮ Storage Object

Example

Get the name of the first local storage item:

var x = localStorage.key(0);
Try it Yourself »

Definition and Usage

The key() method returns name of the key with the specified index.

The key() method belongs to the Storage Object, which can be either a localStorage object or a sessionStorrage object.


Browser Support

Method
key() 4 8 3.5 4 10.5

Syntax

localStorage.key(index)
Or:
sessionStorage.key(index)

Parameter Values

Parameter Description
index Required. A Number representing the index of the key you want to get the name of

Technical Details

DOM Version: Web Storage API
Return Value: A String, representing the name of the specified key

More Examples

Example

The same example, but using session storage instead of local storage.

Get the name of the first storage item:

var x = sessionStorage.key(0);
Try it Yourself »

Example

Loop through each local storage item and display the names:

for (i = 0; i < localStorage.length; i++) {
  x = localStorage.key(i);
  document.getElementById("demo").innerHTML += x;
}
Try it Yourself »

Related Pages

StorageEvent reference: The key Property


❮ Storage Object