Candies

Candies.js

// does not use cookies
// uses localstorage instead

export default class Candies {
  static set(key, value) {
    if (typeof key !== 'string' || key === '') {
      throw Error('Key must be a non-empty string');
    }
    localStorage.setItem(key, encodeURI(JSON.stringify(value)));
  }

  static get(key) {
    if (typeof key !== 'string' || key === '') {
      throw Error('Key must be a non-empty string');
    }
    const fetchedValue = localStorage.getItem(key);
    if (fetchedValue === null || fetchedValue === 'null') {
      return null;
    }
    if (fetchedValue === 'undefined') {
      return undefined;
    }
    return JSON.parse(decodeURI(fetchedValue));
  }

  static has(key) {
    if (typeof key !== 'string' || key === '') {
      throw Error('Key must be a non-empty string');
    }
    return localStorage.getItem(key) !== null;
  }

  static remove(key) {
    if (typeof key !== 'string' || key === '') {
      throw Error('Key must be a non-empty string');
    }
    localStorage.removeItem(key);
  }

  static clear() {
    localStorage.clear();
  }
}