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

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;
}