4Programming is a search engine built for programmers. It prioritizes technical relevance by combining multiple indexes, code-aware ranking, and AI systems. Use it to find code examples, documentation, libraries, tools, tutorials, and services — faster and with fewer irrelevant results than general-purpose search engines. Part of the 4SEARCH network of topic specific search engines.
v 2.1.313 of the Cursor Marketplace Claude Code extension contains malware The official Claude Code extension in the Cursor marketplace was compromised today. Yes, you heard that right. A malicious version, 2.1.313 was published to the Cursor Marketplace, today, October 29th, 2026. The extension identifies itself as anthropic.claude-code version 2.1.313…
Drop a long PDF into a chat on your Linux PC, ask about it, and get answers that cite the page. Click a page chip to open the PDF there. Page citations arrived in 0.0.55. In older builds a long attachment could end the reply with…
For beginners, however, it’s a different story. Feeding an AI terms like "spring easing" or "vertical rhythm" without understanding their underlying principles is like handing a scalpel to someone who’s never dissected a frog. The AI might produce something that looks "design-y," but it lacks the intentionality, the "why" that…
Think of two cooks making the same dish: the server cooks first and sends a finished page, then React in the browser cooks the same page again to make it interactive. If the plates do not match, React gets confused. Let us find the real culprit quickly and fix each…
Before changing code, we ran Lighthouse against a production build (`next build` + `next start`), not `next dev`. Dev mode inflates JavaScript cost and hides image optimisation. Mobile emulation matters: most agency traffic lands…
Single-page applications load one HTML page and then update the content dynamically as users interact. No full browser reloads occur, and interfaces built this way often feel closer to desktop software than to conventional…
“Connect GPIO17 to the LED.” That sounds simple until you ask: which physical pin is GPIO17, where does ground go, and why is there a resistor in the diagram? I wanted those answers beside the board, with one small thing to do next. Pinlight is an interactive learning desk for…
If you work with Linux servers, ls is probably one of the first commands you run after logging in. For most users, the command stops at ls -l or ls -la. That is usually enough until you need to find the newest release archive in…
C is still, after all these years, a good language to learn. It is simple and close to the machine hardware and this makes it a good first language. The only problem is getting started, which this article makes easy. Also see the…
You can't get far in creating C programs without using functions. The good news is that in C functions are simple and efficient and there is no reason not to use them. In this chapter we look at functions, parameters…