Front-end

React

JavaScript UI library

React is a JavaScript library for building user interfaces from components – the basis of Next.js, React Native and interactive page elements.

Official site

What is React?

React is an open-source JavaScript library for building user interfaces out of components, originally created at Facebook (now Meta). Each component describes what part of the screen should look like for a given state, and React updates the view when the data changes. The Next.js framework and React Native, used for mobile apps, are both built on it.

How we use it at Koda Plus

React appears in our projects wherever an interface carries state and logic: the tyre and wheel shop, the B2B and B2C platform for beauty salons, Wekert's web application and the training firm's website. Together with Tauri it also runs Koda Flow, our own product. On Astro sites we add React components only where they are needed, and we build mobile apps with React Native and Expo. Our About page also shows a HackerRank React certificate at Basic level.

When it makes sense

  • The interface holds a lot of state: filters, basket, configurator, dashboard
  • An Astro site needs a few isolated interactive islands
  • Web and mobile apps should share the same patterns
  • The project must be easy for another front-end team to take over

Frequently asked questions
React

  • Is React a framework?

    Strictly speaking, no – React is a library for the view layer. Routing, server-side rendering and data fetching come from frameworks built on top of it, such as Next.js.

  • Is a React website good for SEO?

    It depends on how it is rendered. Google can execute JavaScript, but with a delay, and many other crawlers, including some AI bots, read only the HTML. That's why public pages are best rendered on the server (Next.js) or statically (Astro), with React kept for the interactive parts.

  • What is the difference between React and React Native?

    React builds interfaces in the browser from HTML elements. React Native uses the same component model but renders native iOS and Android controls, so a largely shared codebase ships to both the App Store and Google Play.

Free 15-minute call

Tell us about your project,
we'll tailor the rest to you

A 15-minute call is enough for us to know whether we are a fit for your project.
We start from what you need, not from an off-the-shelf solution.

Contact us

Remigiusz in a navy shirt and glasses
I use iMessage I use WhatsApp
Adrian in a grey turtleneck and glasses
I use iMessage I use WhatsApp