how to store data in localstorage in js code example

Example 1: javascript store object in local storage

var person = { "name": "billy", "age": 23};

localStorage.setItem('person', JSON.stringify(person)); //stringify object and store
var retrievedPerson = JSON.parse(localStorage.getItem('person')); //retrieve the object

Example 2: javascript save data to local storage

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