HTML | DOM Storage setItem() Method

The setItem() method is used to set the storage object item which is specified by the user. This storage object can be a localStorage object or sessionStorage object. 

Syntax: For local storage:

localStorage.setItem(keyname, value)

For session storage:

sessionStorage.setItem(keyname, value)

Parameters: Two parameters are required :-

• Keyname: It specifies the name of the key used for getting the value.
• value: It specifies the value which replaces the old value.

Return Value: A String, representing the inserted value. 

Example: 

Output: 

Before:

 👁 Image
 

After:

 👁 Image
 

Supported Browsers: The browser supported by DOM setItem() Method are listed below:

• Google Chrome 4 and above
• Edge 12 and above
• Internet Explorer 8 and above
• Firefox 3.5 and above
• Opera 10.5 and above
• Safari 4 and above