Window sessionStorage

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Example

Set and retrieve a sessionStorage name/value pair:

sessionStorage.setItem("lastname", "Smith");
sessionStorage.getItem("lastname");

Try it Yourself »

More examples below.

Description

The sessionStorage object let you store key/value pairs in the browser.

Note

The sessionStorage object stores data for only one session.

(The data is deleted when the browser is closed).

Syntax

window.sessionStorage

Or just:

sessionStorage

Save Data to Session Storage

sessionStorage.setItem("key", "value");

Read Data from Session Storage

let lastname = sessionStorage.getItem("key");

Remove Data from Session Storage

sessionStorage.removeItem("key");

Remove All (Clear session Storage)

sessionStorage.clear();

Parameters

Parameter	Description
key	Required. The name of a key.
value	Required. The value of the key.

Return Value

Type	Description
Object	A sessionStorage object.

More Examples

Count the number of times a user has clicked a button:

if (sessionStorage.clickcount) {
sessionStorage.clickcount = Number(sessionStorage.clickcount) + 1;
} else {
sessionStorage.clickcount = 1;
}