singleton-design-pattern-in-java-script_5.js

class LocalStorage {
  #data = {}

  static _instance = null

  static getInstance(options) {
    if (!LocalStorage._instance) {
      LocalStorage._instance = new LocalStorage(options)
    }

    return LocalStorage._instance
  }

  constructor(options) {
    this.options = options || {}
  }

  get(key) {
    return this.#data[key]
  }

  set(key, value) {
    this.#data[key] = value
  }

  remove(key) {
    delete this.#data[key]
  }

  clear() {
    this.#data = {}
  }
}