how to store variable in local storage javascript code example

Example 1: js remove all local storage

window.localStorage.clear(); //clear all localstorage
window.localStorage.removeItem("my_item_key"); //remove one item

Example 2: how to add variable to local storage in javascript

localStorage.setItem('key', 'value')

Example 3: local storage javascript

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

Example 4: set localstorage value

localStorage.setItem("mytime", Date.now());