localStorage-expiration.js

// let's define our expiration date
const today = new Date();
let expDate = new Date();
expDate.setDate(today.getDate() + 30); // 30 days expiration

// a searches user does in your app on the first visit, we collect them to save to localStorage
const userRecentlocations = [
  { city: "New York", country: "US", id: "2390230" },
  { city: "Athens", country: "GR", id: "304802" },
  { city: "Kyiv", country: "UA", id: "1239488" }
];

// if localStorage is available, we'll save user's serach history under recentSearches key
if (typeof (Storage)) {
  // we can add as much extra data as we want, in our case we are adding expiration
  localStorage.setItem("recentSearches", JSON.stringify({
    expiration: expDate,
    locations: userRecentlocations
  }));
}

/** 🦄 **/
// bunch of your app logic
/** 🔥 **/

// when it's time to access previous search history, first we check if we can
if (typeof (Storage)) {
  const recentSearches = JSON.parse(localStorage.getItem("recentSearches"));
  // then check for expiraiton date before showing to the user
  if(new Date(recentSearches.expiration) > new Date()) {
    console.log(recentSearches.locations)
  } else {
    // we can completely clear the value OR display user friendly massage
    console.log("Unfortuenately your search history has expired");
  }
}