React & Next.js Frontend Foundations

Accessibility basics for forms and components

Explains labels, keyboard behavior, focus, semantic HTML, errors, color contrast, and accessible custom controls.

Avoid duplicated derived state in React

Explains when to derive values during render instead of storing duplicate state that can drift.

Build an accessible profile form

Implements labeled fields, client validation, error summaries, focus recovery, and pending submission state.

Build a recoverable route error boundary

Builds a route-level Next.js failure UI with safe reporting, retry, and an escape route while keeping expected errors out of the boundary.

Build upload progress and retry recovery

Models file validation, progress, cancellation, failure, and retry without losing the selected file.

Caching, revalidation, and dynamic data in Next.js

Explains caching and revalidation choices for static, dynamic, user-specific, and frequently changing data.

.NET Full Stack

Full-cycle .NET full-stack interview preparation.

A role-based preparation path covering C#, ASP.NET Core APIs, data access, frontend integration, testing, deployment, system design, real-life scenarios, and behavioral interview topics.

React & Next.js Frontend Foundations