what you can build with it
React.js
Frontend
| React.js | Vue | Angular | |
|---|---|---|---|
| Backed by | Meta + community | Independent community | |
| Best for | Interactive apps, biggest hiring pool | Small teams, gentle learning curve | Large enterprise apps, strict structure |
| Learning curve | Medium | Low | High |
| Hiring pool | Largest | Medium | Largeenterprise |
| Cost vs React.js | 1×baseline | ≈ 0.9×slightly cheaper | ≈ 1.2×about 1.2× more |
insights / tech guides / React.js
What React does on its own, what you pair it with, and how a first React app goes from Figma to production.
Ashish Sharma · Founder & CEO · Reviewed by [Tech lead name] · Published [DATE] · 7 min read
Clear answer
React.js is a JavaScript library for building user interfaces out of reusable components. It handles the interactive part of a web app, such as forms, dashboards and live updates, while a framework like Next.js or a tool like Vite adds routing and builds. A first React web app typically takes 6–10 weeks with 3–4 people.
summary
Important points
Build once, reuse everywhere. A button, table or form written once is used across every screen, so the design stays consistent.
Choose the framework on day one. React alone has no routing or server rendering: pick Next.js for pages that must rank, Vite for apps behind a login.
Keep state simple. Most apps need good caching of server data (for example TanStack Query) more than a big global store.
Use TypeScript from the start. Typed components catch mistakes before users do and make handovers between developers easier.
The skills carry over to mobile. React Native uses the same thinking, so a web team can also ship iOS and Android apps.
Trust & proof
Ashish Sharma, Founder & CEO, Foxena. [X] years building web products for [industries]. Reviewed by [Tech lead], [role].
Expand: the full detail
React is an open-source JavaScript library, created at Meta, for building user interfaces. You describe each part of the screen as a component; when data changes, React updates only the parts that need it. React does not decide your routing, data loading or server, which is why it is usually paired with Next.js or Vite.
When a user clicks or types, the component updates its state. React compares the new output with the old one and changes only those parts of the page, which keeps even large screens fast.
| Role | When | Focus |
|---|---|---|
| Product designer | Weeks 2–3 | Design system, screens |
| Frontend developer | Weeks 3–8 | React components and screens |
| Backend developer | Weeks 4–8 | APIs the screens call |
| QA | Weeks 7–8 | Browsers, devices, accessibility |
| Project manager | Throughout | Scope, demos, sign-off |
The UI kit is the best investment: every later screen gets cheaper to build. [Use the calculator for a live number.]
A library. It renders the interface; routing, data loading and builds come from tools such as Next.js or Vite.
On its own, a React app renders in the browser, which search engines read less reliably. Use Next.js for pages that need to rank.
React is more flexible and easier to hire for. Angular gives large teams a stricter, built-in structure.
Yes, through React Native, which uses the same component approach to build iOS and Android apps.
Planning something with React.js?
Book a free 15-minute call. We will suggest the team and timeline, and give a rough estimate.
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