Page 7 - React

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React Snapshot Testing: Pitfalls and Better Alternatives

Maxim Mironjuk - September 22, 2025

Snapshot testing promises to automatically catch every unintended change to a component. In practice, huge, unreadable snapshots are often blindly updated with a keystroke instead of being investigated for real regressions. This article shows where snapshot testing genuinely helps and where targeted assertions and small inline snapshots bring far more confidence.

React Web Performance

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Edge Runtime vs Node Runtime in Next.js: When to Use What

Maxim Mironjuk - September 17, 2025

The edge runtime promises minimal cold start times and global distribution, but gives up central Node APIs in exchange. The Node runtime offers full compatibility, but costs latency for globally distributed users. Deciding deliberately per route gets the best out of both models.

React GraphQl

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REST vs. GraphQL vs. tRPC in React Apps: Choosing the Right Data Layer

Maxim Mironjuk - September 13, 2025

The choice of data layer decides type safety, caching behavior and how fast a React team ships new features. REST remains the pragmatic standard, GraphQL brings flexible queries for complex data models, and tRPC delivers end to end type safety without a schema language, provided backend and frontend live in the same TypeScript monorepo.

JavaScript React

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Next.js Middleware Patterns Explained: Routing, Auth, and Rewrites

Maxim Mironjuk - September 11, 2025

Next.js middleware runs before a route is even rendered, deciding on redirects, rewrites, and headers before Server Components or Client Components become active. Once you understand matcher rules, auth checks, and the limits of the edge runtime, you can build routing logic that stays fast and still behaves robustly.

Magento React

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Syncing React Cart State with the Magento Backend

Maxim Mironjuk - September 09, 2025

The React cart is the component customers watch most closely for inconsistencies. Optimistic updates let the UI respond instantly, while the actual synchronization with the Magento backend runs in the background, including clean conflict resolution and multi-tab reconciliation.

Magento React

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React Checkout Flow: Best Practices for Magento

Maxim Mironjuk - September 05, 2025

A React checkout flow decides in a few seconds whether a customer completes the purchase or abandons it. Clear step structure, instant form validation and robust error handling with payment providers make the difference between a checkout that converts and one that gives away revenue.

JavaScript React

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Sharing Code Between React Web and React Native

Maxim Mironjuk - August 29, 2025

Realistic code sharing between React web and React Native does not mean using the same components everywhere, it means deliberately separating what is platform agnostic from what cannot be. Business logic, types, API clients and validation share cleanly, interface components mostly do not. This article shows a working monorepo structure with real examples.

React

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React 17 to React 19 Upgrade: The Complete Checklist

Maxim Mironjuk - August 29, 2025

Whoever stayed on React 17 has several major versions and deep changes to rendering, the root API and concurrent features ahead of them. The React 17 to 19 upgrade only succeeds safely with an intermediate step through React 18 and a structured checklist, not a single risky jump.

React Web Performance

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React Virtual List: 100,000 Rows Without Lag

Maxim Mironjuk - August 23, 2025

Anyone who writes 10,000 React elements into the DOM is building an application that is not usable for people. Virtualization renders only the visible rows, everything else is math. How to implement this with TanStack Virtual, react-window and custom implementations.

React

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React Micro-Frontends with Module Federation 2.0

Maxim Mironjuk - August 19, 2025

Anyone running a growing React application as a monolith eventually struggles with long build times, deployment dependencies and team conflicts. Module Federation 2.0 solves these problems through true runtime composition: teams deploy their parts of the app independently, and the shell app dynamically composes everything together.