Browser Storage

Emulating Storage API as in browsers. Unlike most implementations, it uses Proxy to support most possible usages and not only the explicit function calls. It's good for testing. But it also good for environments that you need to polyfill localStorage (such as web workers), since it support utilities for injecting and observing properties change.

Installation

In Yarn:

yarn add @orisomething/browser-storage

In npm:

npm i @orisomething/browser-storage --save

Usuage

import { BrowserStorage } from "@orisomething/browser-storage";

const storage = new BrowserStorage();

// You can (and should) use the Storage API methods
storage.setItem("hello", "world");
storage.getItem("hello") === "world"; // -> true

// But you can also have properties access as in the Storage instances
storage.hello === "world"; // -> true

If you need you can observe property changes:

import {
  BrowserStorage,
  subscribePropertyChange,
  subscribeClear,
} from "@orisomething/browser-storage";

const storage = new BrowserStorage();

// Detect property change / remove
subscribePropertyChange(storage, (key, value) => {
  if (value === null) {
    console.log(`${key} was removed`);
  } else {
    console.log(`${key} changed to ${value}`);
  }
});

// Detect `Storage#clear()` call (regardless storage being empty)
subscribeClear(storage, () => {
  console.log("Storage was cleared");
});