Programming Tutorials

I kept running into the same problem building AI agents. They were slow and I had no idea why. No obvious errors, logs looked fine, but requests wer

React TypeScript Property Form Validation export interface PropertyForm { propertyTitle: string; description: string; amenities: s

PDF merge, split, and compress sound like the most boring possible features to build. Take some files, do an operation, return a file. I believed that

Workday is where large enterprises actually post. NVIDIA has 2,000 open roles there, Salesforce 1,477, Adobe 832. It answers an anonymous POST with no

Ship a compliant cookie banner in Laravel and actually gate analytics and marketing scripts on the user's choice, using the wirecookies-saved event an

Your competitor's entire Google ad history is public. The Google Ads Transparency Center lists every ad an advertiser runs: format, when it first appe

Moving agent memory is easy if “move” means copying rows. It is much harder if the destination must remember the current truth, preserve useful histo

Stored Cross-Site Scripting (XSS) is one of the most dangerous web vulnerabilities. When an application saves user input without proper validation, ma

I'm Spanish, and I kept watching people around me try to learn programming and give up. Not because loops are hard, but because they were learning two

Qwen3 locally with Ollama: what changed in the architecture and whether it's worth switching In 2005, when I was 16 and managing the cyber

Qwen3 en local con Ollama: qué cambió en la arquitectura y si vale el cambio En 2005, cuando administraba el cyber a los 16, aprendí algo q

Today I started learning React. My goal is to build real projects, understand how React works, and improve consistently. I'll be sharing what I lear

AI responses, logs, and configuration snippets often look like JSON without being valid JSON. Typical examples contain: Markdown fences around the

I built a Tamagotchi of Shame for my GitHub Profile (And it dies if I stop coding) There is a creature on my GitHub profile. It is watching

Introduction Your agent guesses. It matches names as text and hopes the right line was in what it read. A language server replaces the gues

Modern applications are becoming increasingly complex. A typical AI application often relies on multiple systems: PostgreSQL for relational data Re

import { useState } from "react"; import { toast } from "react-toastify"; import { useNavigate } from "react-router-dom"; import { useGetAllAgencyQ

Most frameworks make you read config the same way: sprinkle @Value annotations everywhere, or grab a string from Environment and parse it yourself eve

The Great Migration: Beyond the SPA For years, the standard way to build a React application involved pairing Vite with React Router. It is

There is a particular kind of interruption that is worse than an error message: the one that arrives halfway through a debugging thread, a refactor, o