Specialized search for programming

Curated, developer-focused results

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.

Latest Articles


medium.com > @erayhanoglu > postgres-failover-handled-entirely-inside-your-node-js-client-no-proxy-no-vip-no-orchestrator-be62b92aae0a

Postgres Failover, Handled Entirely Inside Your Node.js Client — No Proxy, No VIP, No Orchestrator

14+ min ago   (1137+ words) It’s 3 a.m. db-a, your PostgreSQL primary, stops responding — a disk failure, an OOM kill, doesn't matter. Within seconds, something notices and promotes db-b, one of its replicas, to take over as the new primary. Replication-wise, your cluster is healthy again....


medium.com > @esmasuyolu > veri-analizi-yolculu%C4%9Fum-2-javadan-python-a-ge%C3%A7i%C5%9F-ve-bir-yaz%C4%B1l%C4%B1mc%C4%B1n%C4%B1n-g%C3%B6zlemleri-aef97515b075

Veri Analizi Yolculuğum 2: Java’dan Python’a Geçiş ve Bir Yazılımcının Gözlemleri

1+ hour, 33+ min ago   (291+ words) Yazılım mühendisliği geçmişim sayesinde bu yolculuğa çıkarken programlama temellerine, algoritma mantığına ve problem çözme reflekslerine zaten hakimdim. Yıllarca Java ile backend tarafında kod yazdıktan sonra veri analitiği dünyasının kapısını aralayan Python’a geçiş yapmak benim için sıfırdan bir dil öğrenmekten ziyade,…...


medium.com > @steell0815 > obvious-saturday-im-moving-and-so-is-my-code-b23a0191c754

Obvious Saturday: I’m Moving. And So Is My Code.

1+ hour, 52+ min ago   (873+ words) My home, that is. And as I go through cupboards, shelves, drawers, and boxes, I keep discovering things I apparently considered worth keeping. Years ago… some of them haven’t been used since. Others have survived several moves, carefully packed, transported,…...


medium.com > @NMitchem > i-built-an-agent-harness-for-the-most-boring-job-in-baseball-it-runs-while-i-sleep-0ce6ad57ad9d

I Built an Agent Harness for the Most Boring Job in Baseball. It Runs While I Sleep.

1+ hour, 50+ min ago   (1065+ words) MLB changes its data without telling anyone. I built a team of AI agents to notice, and mostly typed “yes”. At 7:51AM on a Thursday in September, I typed one line to Claude that I’d left running overnight: “Why did it…...


medium.com > @acun.seymanur03 > what-cs50-doesnt-tell-you-how-10-lines-of-code-become-a-1-000-line-real-project-a2f0aed66335

What CS50 Doesn’t Tell You: How 10 Lines of Code Become a 1,000-Line Real Project | by Şeyma Nur Acun | Oct, 2026

1+ hour, 33+ min ago   (437+ words) Beyond CS50: Bridging the Gap to Real World Projects ​If you feel this way, you are not alone. This is the most natural bridge between academic learning and applied software engineering. Here are the answers to the most common practical questions…...


medium.com > codetodeploy > resurrecting-old-silicon-how-i-forced-a-legacy-zebronics-motherboard-to-run-proxmox-ve-8-x-49a93949bb8f

Resurrecting Old Silicon: How I Forced a Legacy Zebronics Motherboard to Run Proxmox VE 8.x

1+ hour, 18+ min ago   (139+ words) When a simple hypervisor installation turns into a battle against ancient BIOS constraints, missing carrier flags, and dead bootloaders. A practical guide to bare-metal troubleshooting. A few days ago, I set out to repurpose an old desktop computer powered by…...


medium.com > @onyie.dev > how-do-you-know-your-react-code-actually-works-41b53d8fc8b3

How Do You Know Your React Code Actually Works?

16+ min ago   (1381+ words) Understanding component testing with React Testing Library and Vitest This is one of the reasons automated testing is useful. Instead of depending entirely on manual checks, you can write tests that verify important behaviours and run them whenever you need…...


medium.com > @hackthecyber > javascript-form-validation-when-input-needs-boundaries-88fb6f528ed4

JavaScript Form Validation: When Input Needs Boundaries

1+ hour, 14+ min ago   (823+ words) Maya had finished building her login risk assessment tool. The interface was simple: a username field, a field for failed login attempts, a question asking whether the device was trusted, and a single Analyze button. The goal was straightforward: someone…...


medium.com > @heyslingshot > 4-ai-learning-tracks-that-survive-your-next-tool-switch-4635ccce4fda

4 AI Learning Tracks That Survive Your Next Tool Switch

34+ min ago   (1629+ words) Your company just paid for AI training. Six months later, half the team switched tools, and most of what they learned went with it. That is the quiet math problem inside almost every AI enablement budget right now. Tools shift…...


medium.com > activated-thinker > i-built-an-ai-agent-that-finds-freelance-jobs-and-drafts-proposals-worth-sending-3d125f2fda6e

I Built an AI Agent That Finds Freelance Jobs and Drafts Proposals Worth Sending

1+ hour, 38+ min ago   (180+ words) Here’s a job post I could easily imagine seeing. The title says ‘Looking for an n8n automation expert.’ The first paragraph mentions workflows, integrations and AI. It sounds like it was written for me. Then, in the fourth paragraph: ‘Must have…...