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:

filter_none

edit
close

play_arrow

link
brightness_4
code

<!DOCTYPE html>
<html>
  
<head>
    <!--script for creating new local 
      storage item and retrieve it -->
    <script>
        
        // Set item in local storage.
        function createItem() {
            localStorage.setItem("city", "Gwalior");
        }
  
        function myFunction() {
            var x = localStorage.getItem("city");
            document.getElementById("demo").innerHTML = x;
        }
    </script>
</head>
  
<body>
    <h1>Welcome to GeeksforGeeks</h1>
    <h3>The Storage setItem() Method</h3>
    <p>Click on button to create a 
      local storage item </p>
  
    <button onclick="createItem()">
      Create local storage item
  </button>
  
    <p>Click the button to get the item value:</p>
  
    <button onclick="myFunction()">
      Get the item value
  </button>
  
    <p id="demo"></p>
  
</body>
  
</html>

chevron_right


Output:

Before:

After:

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

  • Google Chrome
  • Internet Explorer
  • Firefox
  • Opera
  • Safari


My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.




Article Tags :
Practice Tags :


Be the First to upvote.


Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.