lbry-desktop/ui/util/storage.js

export function isLocalStorageAvailable() {
  try {
    return Boolean(window.localStorage);
  } catch (e) {
    return false;
  }
}

export function isSessionStorageAvailable() {
  try {
    return Boolean(window.sessionStorage);
  } catch (e) {
    return false;
  }
}

export function getLocalStorageSummary() {
  try {
    const count = window.localStorage.length;
    const estimatedSize = JSON.stringify(window.localStorage).length;
    return `${count} items; ${estimatedSize} bytes`;
  } catch (e) {
    return 'inaccessible';
  }
}

const localStorageAvailable = isLocalStorageAvailable();

export function getLocalStorageItem(key) {
  return localStorageAvailable ? window.localStorage.getItem(key) : undefined;
}

export function setLocalStorageItem(key, value) {
  if (localStorageAvailable) {
    window.localStorage.setItem(key, value);
  }
}