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:

System Design for Frontend Engineers: Latency, Consistency, and Why Every Decision Is a Tradeoff

May 28, 2026System Design Foundations

System design is not a backend-only skill. Frontend engineers feel the consequences of every architectural decision through latency, stale data, retries, rate limits, and failure modes that surface directly in the UI.

The Stale Closure Problem in React Hooks

May 27, 2026Rendering & Frameworks

Stale closures are one of the most common and confusing sources of bugs in React hooks. They occur when a function captures a variable at the time it was created and does not see later updates — resulting in logic that operates on outdated state or props.

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