Storage setItem() Method

Set the value of the specified local storage item:

localStorage.setItem("mytime", Date.now());

Description

The setItem() method sets the value of the specified Storage Object item.

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

Method
setItem()	4	8	3.5	4	10.5

localStorage.setItem( keyname, value)

sessionStorage.setItem( keyname, value)

Parameter	Description
keyname	Required. A String specifying the name of the key you want to set the value of
value	Required. A String specifying the value of the key you want to set the value of

DOM Version:	Web Storage API
Return Value:	A String, representing the inserted value

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

Set the value of the specified session storage item:

sessionStorage.setItem("test1", "Lorem ipsum");

You can also set the value by using dot notation (obj.key):

sessionStorage.test1 = "Lorem ipsum";

You can also set the value like this:

sessionStorage["test1"] = "Lorem ipsum";

Web Storage Reference: getItem() Method

Web Storage Reference: removeItem() Method