is local storage a property from window code example

Example 1: local storage javascript

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

Example 2: copy localstorage javascript

var data = JSON.parse(/*previously copied stringified JSON from clipboard*/);
Object.keys(data).forEach(function (k) {
  localStorage.setItem(k, data[k]);
});