LocalStorage Sample Best Practices

localstorage.js

// localStorage only writes strings
function setItem(key, value) {
  try {
    localStorage.setItem(key, JSON.stringify(value));
  } catch (e) {
    if (e.name === "QuotaExceededError") {
      console.warn("Local Storage quota exceeded! Please clear some old entries.");
    }
  }
}

// localStorage only stores strings not objects so parse!
function getItem(key, fallback = null) {
  try {
    const value = localStorage.getItem(key);
    return value ? JSON.parse(value) : fallback;
  } catch {
    return fallback;
  }
}