localstorage.getitem()

  var Item = localStorage.getItem('youritem');

//The following snippet accesses the current domain's local Storage object 
//and adds a data item to it using Storage.setItem().
localStorage.setItem('myCat', 'Tom');

//The syntax for reading the localStorage item is as follows:
const cat = localStorage.getItem('myCat');

//The syntax for removing the localStorage item is as follows:
localStorage.removeItem('myCat');

//The syntax for removing all the localStorage items is as follows:
localStorage.clear();

// localStorage--> userName: 'jon'
var userName = localStorage.getItem('userName');
// userName --> jon