×

Save Your Code

If you click the save button, your code will be saved, and you get an URL you can share with others.

By clicking the "Save" button you agree to our terms and conditions.

Report Error

×

Save to Google Drive

If you have a Google account, you can save this code to your Google Drive.

Google will ask you to confirm Google Drive access.

×

Open from Google Drive

If you have saved a file to Google Drive, you can open it here:

Result Size: 625 x 571
x
 
<!DOCTYPE html>
<html>
<body>
<h1>The Storage length Property</h1>
<p>This example demonstrates how to use the length property to get the number of items stored in the session storage object.</p>
<h2>Missing sessionStorage items?</h2>
<p>Since you might not have any items stored in your session storage, we have added a script that creates some for you.</p>
<button onclick="createItems()">Create session storage items</button>
<h2>Get the number of sessionStorage Items</h2>
<p>Click the button to get the number of session storage items:</p>
<button onclick="myFunction()">Get number of items</button>
<p id="demo"></p>
<script>
function createItems() {
  sessionStorage.test1 = "hello";
  sessionStorage.test2 = "Jim";
  sessionStorage.test3 = 358;
}
function myFunction() {
  var x = sessionStorage.length;
  document.getElementById("demo").innerHTML = x;
}
</script>
</body>
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_storage_length_session by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:04:11 GMT -->
</html>
×

Report a Problem: