Curated development tutorials from top sources. Filter by language.
これは matten を紹介する全 4 回シリーズの第 3 回です。前回は数値計算のコア部分を紹介しました。今回は雑然とした実世界のデータを取り込むしくみについてです。 課題事項 前回紹介した Tensor （数値テンソル）は、つくられた時点からクリーンです。すべてのセ
I let my AI agents rewrite their own prompts. The hard part was stopping them from getting worse. Most "self-evolving agent" demos die the moment you
I ran 200 paper trades. Win rate was 91%. P&L tracker showed positive every session. I moved to live. First week looked fine. Then I pulled the actual
Running three sites from one monorepo means three separate ETL jobs, three content rebuilds, and three deployment pipelines — all scheduled, all needi
The open-closed principle (OCP) states that software entities should be open for extension, but closed for modification; that is, such an entity can a
TL;DR Image uploads aren't just images. A JPEG can carry a PHP web shell in its EXIF comment and still pass MIME checks, extension checks,
Need to turn Word docs into crisp PDFs on the fly, without installing Office? In this hands‑on guide we walk through setting up the GroupDocs Convers
This is the third of four short posts about matten. The previous post covered the numeric core. This one covers a separate feature: ingesting messy, r
Apache DolphinScheduler has already been deployed on a virtual machine. Next, we want to try creating a Flink task node in DolphinScheduler and use
Rules for creating a class => Using class keyword to create a class. public class Home { } => Give a class name meaningful (templ
I stared at CpiContext::new(...) for a solid ten minutes on Day 71. I knew the arguments existed. I had no idea what they meant. I copied working cod
JavaScript Math Object The Math Object The JavaScript Math object allows you to perform mathematical tasks. The Math object is static. All methods
Ahnii! If you let an AI agent modify your application, the agent needs more than a text editor. Raw str_replace on a PHP file passes a lot of tests a
Securing Spring AI Tool Calls: Stop Letting AI Agents Bypass Authorization with ScopedValue As enterprise AI agents transition from read-on
After 12+ years of building PHP applications, I recently added AI-powered features to a production Laravel dashboard — automatic report summaries gene
A Symfony app that exposes an HTTP API can have that API documented directly from the code: tooling reads the controllers and routes and produces an O
Hearing "RAG" everywhere in AI but not 100% sure how it works? 🤔 I just put together a quick 10-minute breakdown (in Hindi) explaining exactly what R
Hey DEV Community 👋 I’m Asara, a science student and tech enthusiast who loves solving real-world problems. Today, I want to share a recent project I
Most Go devs call context.Background() on autopilot and never think twice. But context isn’t just plumbing — it’s the backbone of cancellation, deadli
Starting a new project should be simple. Clone the repository, install dependencies, run the app, and start building. But in many PHP projects, deve