npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

@smartrent/use-persisted-state

v0.3.1

Published

A custom React Hook that provides a multi-instance, multi-tab/browser shared and persistent state.

Downloads

6,496

Readme

use-persisted-state

A custom React Hook that provides a multi-instance, multi-tab/browser shared and persistent state.

npm version All Contributors

use-persisted-state is not a hook itself, but is a factory that accepts a storage key and an optional storage provider (default = localStorage) and returns a hook that you can use as a direct replacement for useState.

Features

💾 Persists the state to localStorage

🖥 Syncs between tabs and/or browser windows

📑 Shares state w/multiple hooks on a page

Requirement

To use use-persisted-state, you must use [email protected] or greater which includes Hooks.

Installation

$ npm i use-persisted-state

Example

Let's take a look at how you can use use-persisted-state. Here we have an example of a typical up/down counter.

import { useState } from 'react';

const useCounter = initialCount => {
  const [count, setCount] = useState(initialCount);

  return {
    count,
    increment: () => setCount(currentCount => currentCount + 1),
    decrement: () => setCount(currentCount => currentCount - 1),
  };
};

export default useCounter;

Let's replace the import of react with an import from use-persisted-state. And we'll call createPersistedState (the factory function). This will return a useCounterState hook that we can use in place of useState.

The complete code is as follows.

import createPersistedState from 'use-persisted-state';
const useCounterState = createPersistedState('count');

const useCounter = initialCount => {
  const [count, setCount] = useCounterState(initialCount);

  return {
    count,
    increment: () => setCount(currentCount => currentCount + 1),
    decrement: () => setCount(currentCount => currentCount - 1),
  };
};

export default useCounter;

The state is shared with any other hook using the same key, either on the same page, across tabs, or even browser windows.

For example, open two copies of your app in two tabs or even two windows. Any changes to state in one tab will be rendered on the other tab.

You can also close the browser and the next time you run your app, the state will be rendered as it was before you closed your browser.

License

MIT Licensed

Contributors

Thanks goes to these wonderful people (emoji key):

This project follows the all-contributors specification. Contributions of any kind welcome!