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HTML | DOM Storage setItem() Method

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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. 



<!DOCTYPE html>
    <!--script for creating new local
      storage item and retrieve it -->
        // Set item in local storage.
        function createItem() {
            localStorage.setItem("city", "Gwalior");
        function myFunction() {
            var x = localStorage.getItem("city");
            document.getElementById("demo").innerHTML = x;
    <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
    <p>Click the button to get the item value:</p>
    <button onclick="myFunction()">
      Get the item value
    <p id="demo"></p>






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

Last Updated : 14 Jul, 2022
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