How to save data in localStorage using javascript code example

Example 1: store data in localstorage javascript

var testObject = { 'one': 1, 'two': 2, 'three': 3 };

// Put the object into storage
localStorage.setItem('testObject', JSON.stringify(testObject));

// Retrieve the object from storage
var retrievedObject = localStorage.getItem('testObject');

console.log('retrievedObject: ', JSON.parse(retrievedObject));

Example 2: local storage javascript

localStorage.setItem('user_name', 'Rohit'); //store a key/value
var retrievedUsername = localStorage.getItem('user_name'); //retrieve the key

Example 3: js save local storage

//Set item
localStorage.setItem('myCat', 'Tom');
//Get item
var cat = localStorage.getItem("myCat");
//Remove item
localStorage.removeItem("lastname");
//Remove all items
localStorage.clear();

Example 4: javascript save data to local storage

// Store
localStorage.lastname = "Smith";
// Retrieve
document.getElementById("result").innerHTML = localStorage.lastname;
// Remove
localStorage.removeItem("lastname");