JavaScript SessionStorage Methods with Examples

The sessionStorage object stores data for only one session (the data is deleted when the browser tab is closed).

JavaScript SessionStorage Methods

To use SessionStorage in your web applications, there are 5 methods to choose from:
  1. setItem(): Add key and value to SessionStorage
  2. getItem(): Retrieve a value by the key from SessionStorage
  3. removeItem(): Remove an item by key from SessionStorage
  4. clear(): Clear all SessionStorage
  5. key(): Passed a number to retrieve nth key of a SessionStorage

Syntax

window.sessionStorage
The syntax for SAVING data to sessionStorage:
sessionStorage.setItem("key", "value");
The syntax for READING data from sessionStorage:
var lastname = sessionStorage.getItem("key");
The syntax for REMOVING saved data from sessionStorage:
sessionStorage.removeItem("key");
The syntax for REMOVING ALL saved data from sessionStorage:
sessionStorage.clear();
Syntax for Key() Method:
var KeyName = sessionStorage.key(index);
Let's demonstrate each method of SessionStorage with example.

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