Storage length property

Example

Get the number of local storage items for this domain:

var x = localStorage.length;

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Definition and usage

The length property returns the number of items stored in the browser's Storage object for this specific domain.

The length property of the Storage object can be localStorage object, or also sessionStorage object.

Browser support

Properties Chrome IE Firefox Safari Opera
length 4 8 3.5 4 10.5

Syntax

localStorage.length;

Or:

sessionStorage.length;

Technical details

DOM version: Web Storage API
Return value: An integer representing the number of storage items.

More examples

Example

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

Get the number of session storage items for this domain:

var x = sessionStorage.length;

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Example

Loop through each local storage item and display the name:

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

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