AlexWebLab

Explore a wide range of web development topics, from JavaScript to React and beyond, and uncover valuable insights to enhance your skills.

Latest 2 articles:

Event Sourcing in the Frontend: Building UI State From a Stream of Events

Security & Architecture

Event sourcing is typically discussed in the context of backend systems, but the same pattern — deriving current state by replaying a log of past events — offers powerful benefits for complex frontend state management, collaborative features, and time-travel debugging.

CORS Preflight Requests Explained

Networking & Caching

CORS errors are among the most common frustrations in web development. Understanding why preflight requests exist and how the browser decides to send them will save you hours of debugging.