session storage
// Save data to sessionStorage
sessionStorage.setItem('key', 'value');
// Get saved data from sessionStorage
let data = sessionStorage.getItem('key');
// Remove saved data from sessionStorage
sessionStorage.removeItem('key');
// Remove all saved data from sessionStorage
sessionStorage.clear();localStorage
// localStorage for objects, arrays or any data type
var obj = {
firstName: "Bob",
lastName: "Jeff",
age: 13
}
localStorage.setItem("itemname", JSON.stringify(obj)); // Save the obj as string
var item = JSON.parse(localStorage.getItem("itemname"));
// ^^ Parse string then set `item` as the objclear session storage on refresh
window.onunload = function () {
sessionStorage.removeItem('key');
}javascript save data to local storage
// Store
localStorage.lastname = "Smith";
// Retrieve
document.getElementById("result").innerHTML = localStorage.lastname;
// Remove
localStorage.removeItem("lastname");what is local storage and session storage in javascript
//localStorage - stores data with no expiration date. window. sessionStorage - stores data for one session (data is lost when the browser tab is closed)localstorage
// using in HTML5 (frontend)
// set
localStorage.setItem('users', 'vilh');
users = [
{
id: 1,
name: 'vilh',
},
{
id: 2,
name: 'zidane'
},
]
// set string
localStorage.setItem('users', users); // stored objects
localStorage.setItem('users', JSON.stringify(users)); // stored string
// get
var retrievedUsername = localStorage.getItem('users');Copyright © 2021 Codeinu
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