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

@carnesen/mathjs-app

v2022.2.1

Published

A toy calculator web app built on math.js

Downloads

6

Vulnerabilities

Powered byPowered by Snyk
  • 0High
  • 0Medium
  • 0Low

Links

Git

Maintainers

carnesencarnesen

Keywords

Readme

@carnesen/mathjs-app npm version badge build status badge

A full-stack app I made for a job application at a startup in 2016.

Deployed on the web at https://mathjs.carnesen.com/.

Install

Prerequisites:

To run the application from the source code (requires git):

git clone https://github.com/carnesen/mathjs-app.git
cd mathjs-app
npm install
npm build
npm start

At that point the application should be running and serving its browser application at http://localhost:8000

How it works

This full-stack application is written in JavaScript, html, and css. The source code lives in the src directory, divided into code that only runs server side, code that only runs in the browser app, and shared "isomorphic" code. The entry point for the server-side and browser applications are src/server/index.js and src/browser/index.js, respectively.

The browser application is built on React. It allows the user to calculate mathematical expressions (e.g. "4+4") using the Math.js library. When the user submits an expression for calculation, it gets added to the right-hand column of results below the expression input box. Each expression and its result also gets sent to the back end by an http request. The back end retains a list of the ten most recent calculations submitted by all users. This list gets synchronized in real time to all connected browsers via WebSockets implemented with Socket.io. The list of the ten most recent calculations across all users shows up as the left-hand column of results below the expression input box. The state of the applications both server- and browser-side is maintained as a Redux store. Because this is a toy application unlikely to actually have multiple concurrent users, the back end simulates user activity by submitting new calculations every few seconds.

Related

License

MIT © Chris Arnesen