/* Copyright 2010-2019 Will Scullin * * Permission to use, copy, modify, distribute, and sell this software and its * documentation for any purpose is hereby granted without fee, provided that * the above copyright notice appear in all copies and that both that * copyright notice and this permission notice appear in supporting * documentation. No representations are made about the suitability of this * software for any purpose. It is provided "as is" without express or * implied warranty. */ const havePrefs = typeof window.localStorage !== 'undefined'; export default class Prefs { havePrefs() { return havePrefs; } readPref(name: string): string | null { if (havePrefs) return window.localStorage.getItem(name); return null; } writePref(name: string, value: string) { if (havePrefs) window.localStorage.setItem(name, value); } }