Task 1: Store a name, userId in LocalStorage

  let firstName='Sachin'; //string
  localStorage.setItem("name",firstName);
  let userId = 101; //number
  localStorage.setItem("id",userId);

Note: In localStorage, all the data will be stored as string.

Task 2: Retrieve the data from localStorage

  let fName = localStorage.getItem("name");// It returns "Sachin" as string
  console.log(fName);
  let uId = localStorage.getItem("id"); //It returns "101" as string( Not a number)
  console.log(uId);

Note: When retrieving data from localStorage, it returns all data as string.

Task 3: Convert userId string to number

  let userIdStr = localStorage.getItem("id");
  let userIdNumber = parseInt(userIdStr); // we need to convert string to number 

Task 4: Short Syntax to get data from localStorage

  console.log(localStorage.getItem("name"));
  console.log(localStorage.name);

Task 5: Remove an item from LocalStorage

  localStorage.removeItem("name");

Task 6: Remove all items from LocalStorage

  localStorage.clear();