17593 posts from this source
Introduction In most modern front‑end frameworks, the client is the primary decision‑maker: it builds the UI, manages state, performs data fetching, and reacts...
Background I'm a beginner, but not entirely a newbie. I learned BASIC in the 80s as a kid, HTML + CSS in my twenties, but then hardly did anything with code af...
Step 1: Cleaning the Data Where the Real Work Happens Whenever I receive sales data, I assume one thing: It’s not ready. Raw data often includes: - Missing cus...
Na Parte 1https://dev.to/carineneris/alembic-versionamento-de-banco-de-dados-40di deste artigo, aprendemos os fundamentos do Alembic, como inicializar o ambient...
If you are learning frontend development, especially with React, you may have heard about Redux. It can seem confusing at first, but the core ideas are simple....
A Dor da Evolução do Banco de Dados em Projetos Ágeis Em projetos de desenvolvimento de software, especialmente aqueles que adotam metodologias ágeis, a arquite...
!Cover image for lru_cache vs singleton in Python — they're not the same thing.https://media2.dev.to/dynamic/image/width=1000,height=420,fit=cover,gravity=auto,...
In September 2025, I sat down at a desk in Vancouver, opened a terminal, and started building ioZen. No dev team. No co‑founder writing code beside me. No Slack...
Introduction Meteor 3.4 brings a major developer‑experience upgrade, including deferrable functions. They let you defer non‑critical asynchronous work until af...
CVE ID CVE-2026-20700 Project Apple Product Multiple Apple products iOS, macOS, tvOS, watchOS, visionOS Dates - Date Added: 2026-02-12 - Due Date: 2026-03-05 D...
This is my submission to the GitHub Copilot CLI Challenge! What I Built I built a web app called ImageStyler that lets you upload any image and transform it int...
Overview This is a submission for the GitHub Copilot CLI Challenge. I used GitHub Copilot CLI to build an app called CollabCircle. CollabCircle is an AI‑powere...
The Convenience Trap Setting up an AI coding agent usually goes like this: - Agent needs to call Stripe API - You paste sk_live_xxx into the config - Agent wor...
The Prompt‑Injection Problem Ever felt like you’re playing a never‑ending game of whack‑a‑mole with AI security, especially when it comes to prompt injection?...
!Cover image for Why Next.js Navigation Doesn’t Work as Expectedhttps://media2.dev.to/dynamic/image/width=1000,height=420,fit=cover,gravity=auto,format=auto/htt...
Introduction At this point I had covered almost every essential React topic: state, hooks, list rendering, conditional rendering, and more. For Day 11 of my 10...
Episode 1: The One Ring Singleton Pattern Accompanying source‑code repository: Learning Python Object‑Orientedhttps://github.com/vanHeemstraSystems/learning-py...
Smart Contracts & the Evolution of Web3 Execution Smart contracts have long been the primary method for developing applications in Web3. However, the underlyin...
Today I officially started my journey into the world of JavaScript. Many people start by writing: javascript console.log'Hello World'; but I decided to take a s...
Introduction Traditional portfolios have a fundamental problem: they assume visitors will actually read them. We craft paragraphs about our experience, build g...
In a production environment—especially in finance, healthcare, or enterprise data—allowing an LLM to blindly accept context from another agent is a security vul...
markdown !Cover image for “How I built an observability layer for my OpenClaw AI agents”https://media2.dev.to/dynamic/image/width=1000,height=420,fit=cover,grav...
When Alistair Cockburn described the Hexagonal Architecture in 2005, he documented adapter interchangeability as a core property of the pattern. In Chapter 5 o...
Max Pooling In the previous articlehttps://dev.to/rijultp/image-classification-with-convolutional-neural-networks-part-2-creating-a-feature-map-gd0 we created...
A practical guide to secrets management in the MCP ecosystem The Uncomfortable Truth About MCP Security The Model Context Protocol MCP is revolutionizing how AI...
Most guardrail systems for LLMs work like a bouncer at a bar: they check each request at the door, decide pass or fail, and then forget about it. I wanted somet...
RepoDoctor – A Copilot‑First CLI for Codebase Health RepoDoctor is a Copilot‑first CLI tool that revolutionizes how developers analyze and maintain their codeb...
Just open sourced A‑Team CLI—a terminal tool where multiple AI agents architect, coder, etc. collaborate on your codebase. It’s human‑in‑the‑loop, “secure” ish,...
Twitter makes solo SaaS look like a dream. Shipping fast. Making money while you sleep. Freedom. Passive income. Location independence. I’ve been running 10 Saa...
Overview Vulnerability ID: CVE-2026-25949 CVSS Score: 7.5 High Published: 2026-02-12 CWE ID: CWE-400 Uncontrolled Resource Consumption Attack Vector: Network R...
Stainless Language Server Stainless users configure their SDKs with two files: a stainless.yml config and an OpenAPI spec. Together, these files define how you...
Luhn Algorithm – A Complete Card Validator !mnotrhttps://media2.dev.to/dynamic/image/width=50,height=50,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to...
What is caching? Caching is the technique of storing frequently accessed data in a temporary, high‑speed storage e.g., Redis. It reduces the compute load on th...
Desenvolvendo o Photofy aqui em Paulista Percebi que a busca tradicional por “cidade” era muito frustrante. Um fotógrafo que mora no Janga está colado em Olind...
Cases of UPPER – Part 10 Custom Associative Interface Raku This is part 10 in the Cases of UPPER series of blog posts, describing the Raku syntax elements that...
Overview Most modern laptops come equipped with powerful GPUs that are often under‑utilized. Whether you are a software engineer running local LLMs, a data sci...
Overview Outside of my usual 9‑5 mobile‑dev work but due to issues found at it, I've decided to build verba.devhttps://verba.dev/, a light and fully automated...
Docker Swarm continues to power production environments thanks to its minimal overhead and native Docker integration. Tools that enhance its usability are in hi...
What YAGNI Really Means YAGNI stands for You Aren’t Gonna Need It. The rule is brutally simple: - If you don’t need it now, don’t build it now. - Not “just in...
Next challenge in 3… 2… 1… John, you have 6 hours to complete this challenge. Build a TypeScript/React shopfront using Shopify’s GraphQL API, the motion.js libr...
The Problem with Traditional Approaches Traditional patent‑search methods face significant challenges when conducting comprehensive prior‑art analysis. Why trad...
The Accidental Launch I spent a few weeks building an MVP, bought a domain, deployed it, then moved on to a different idea. Over the next few months I kept get...
Overview Hey everyone! I’m excited to share a project I’ve been working on: PardusDBhttps://github.com/JasonHonKL/PardusDB. If you’ve ever built a RAG Retrieva...
For the last two years, almost every organization has been asking the same question: > “How do we use AI?” And almost every answer has focused on: - models - to...
What were you listening to this week last year? What about three years ago? If you're like most people, you have no idea. Those songs are gone — not from Spoti...
The Plateau Problem There's a pattern I've watched repeat itself more times than I can count. A talented developer spends three to four years grinding through...
Death by a Thousand Commas: Deep Dive into CVE-2026-2391 Vulnerability ID: CVE-2026-2391 CVSS Score: 6.3 Published: 2026-02-12 A logic flaw in the popular Node...
Built With - Asana – request form intake - Zapier – routing + logic - BannerBear – image rendering !flow sketchhttps://media2.dev.to/dynamic/image/width=800%2C...
