https://techcamppro.com/blog TechCamp Pro by Muhammad Ali — Full Stack Developer (MERN / Next.js) building fast, scalable web apps, with AI/ML and Python solutions through the team. Hire for freelance & client projects, read the developer blog, and watch coding tutorials. en https://techcamppro.com/blog/fixing-a-stale-closure-bug-in-a-javascript-timer https://techcamppro.com/blog/fixing-a-stale-closure-bug-in-a-javascript-timer A common React/JS bug where a setInterval keeps using old state — here's the problem, why it happens, and how to fix it. Sat, 11 Jul 2026 10:26:35 GMT https://techcamppro.com/blog/how-to-sum-a-2-num https://techcamppro.com/blog/how-to-sum-a-2-num This solution uses the Factory Function pattern along with Closures. Fri, 10 Jul 2026 15:02:00 GMT