Cache make use of window.localStorage. If not available then create in-memory cache.

In-n-Out

LocalStorage from browser only stores string. This library does JSON.stringify and JSON.parse when set / get objects. So it is able to cache objects and array. At the same time provide some level of immutability.

import { Cache } from 'fsts';

const item = 'hello';
Cache.set('key', item);
Cache.get('key'); // 'hello'

const item = { greeting: 'hello' };
Cache.set('key', item);
Cache.get('key'); // { greeting: 'hello' }

const item = ['hello', 'there'];
Cache.set('key', item);
Cache.get('key'); // ['hello', 'there']