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📰 Medium · JavaScript

64 articles · Updated every 3 hours · View all reads

All Articles 175,377Blog Posts 163,941Tech Tutorials 46,719Research Papers 34,377News 22,097 ⚡ AI Lessons
Tokens, Context, Parameters: The Real Mechanics of an LLM
Medium · JavaScript 🧠 Large Language Models ⚡ AI Lesson 1mo ago
Tokens, Context, Parameters: The Real Mechanics of an LLM
Large language models can answer questions, generate software, summarize documents, and produce human-like writing. These abilities emerge… Continue reading on
Medium · JavaScript 🧠 Large Language Models ⚡ AI Lesson 1mo ago
I Tried 20+ TypeScript Courses on Udemy — Here Are My Top 5 Recommendations for 2026
My Favorite Udemy Courses to learn TypeScript in 2026 Continue reading on Javarevisited »
Quando un LLM non basta: i tool in LangChain.js
Medium · JavaScript 🧠 Large Language Models ⚡ AI Lesson 1mo ago
Quando un LLM non basta: i tool in LangChain.js
Nell’articolo precedente abbiamo lasciato Claude in un momento di onestà: alla domanda sul meteo a Milano ha risposto che non può saperlo… Continue reading on M
How to Prevent Prompt Injection Attacks & Secure Your AI Apps in 2026
Medium · JavaScript 🧠 Large Language Models ⚡ AI Lesson 1mo ago
How to Prevent Prompt Injection Attacks & Secure Your AI Apps in 2026
If you are building an AI chatbot, SaaS tool, or agentic system using LLMs like OpenAI’s GPT-4o, Anthropic’s Claude, or Google’s Gemini… Continue reading on Med
Vercel Built a TypeScript Compiler With No JavaScript Engine Inside It, and the Internet Is Not…
Medium · JavaScript 🧠 Large Language Models ⚡ AI Lesson 1mo ago
Vercel Built a TypeScript Compiler With No JavaScript Engine Inside It, and the Internet Is Not…
There is a new tool on GitHub called scriptc, and its pitch is the kind of thing that makes developers stop scrolling. Write ordinary… Continue reading on Mediu
20 Costly Mistakes AI Engineers Make When Building Production Apps
Medium · JavaScript 🧠 Large Language Models ⚡ AI Lesson 1mo ago
20 Costly Mistakes AI Engineers Make When Building Production Apps
Building a prototype with an LLM API takes ten minutes. Building a production grade AI application that is reliable, cost effective, and… Continue reading on Me
Chroma: A Beginner-Friendly Guide to Vector Databases for AI Applications
Medium · JavaScript 🧠 Large Language Models ⚡ AI Lesson 1mo ago
Chroma: A Beginner-Friendly Guide to Vector Databases for AI Applications
As Large Language Models (LLMs) become increasingly popular, developers are discovering that models like GPT, Claude, and Gemini cannot… Continue reading on Med
String Polyfills and Common Interview Methods in JavaScript
Medium · JavaScript 🧠 Large Language Models ⚡ AI Lesson 1mo ago
String Polyfills and Common Interview Methods in JavaScript
Build your own trim, reverse, and includes from scratch — and the classic string problems interviews love. Continue reading on Medium »
TypeScript passed. JavaScript crashed. Here’s why.
Medium · JavaScript 🧠 Large Language Models ⚡ AI Lesson 1mo ago
TypeScript passed. JavaScript crashed. Here’s why.
TypeScript’s build-time safety disappears entirely at runtime. The JavaScript engine that executes your production code has never heard of… Continue reading on
LLM Fundamentals with LangChain
Medium · JavaScript 🧠 Large Language Models ⚡ AI Lesson 1mo ago
LLM Fundamentals with LangChain
Using a Large Language Model (LLM) in an application isn’t just about sending a question and getting a response. The real challenge is… Continue reading on Medi
How to Add Memory to Your AI Chatbot (No Vector Database Needed)
Medium · JavaScript 🧠 Large Language Models ⚡ AI Lesson 2mo ago
How to Add Memory to Your AI Chatbot (No Vector Database Needed)
A practical guide to giving your LLM a working memory — using tools you probably already have Continue reading on Medium »
Understanding the Limitations of RAG
Medium · JavaScript 🧠 Large Language Models ⚡ AI Lesson 2mo ago
Understanding the Limitations of RAG
Let’s start with the use case of RAG(Retrieval Augmented Generation). What is the purpose of using this behind having all the LLMs to us. Continue reading on Me
Google Says 5–60×. On a Small Model, I Measured 1.77× — and That’s Exactly What the Math Predicts
Medium · JavaScript 🧠 Large Language Models ⚡ AI Lesson 2mo ago
Google Says 5–60×. On a Small Model, I Measured 1.77× — and That’s Exactly What the Math Predicts
LiteRT.js hands-on, where the WebGPU speedup lives, where it doesn’t, what happened when I tried Google’s own quantized model. Continue reading on Medium »
I Appended a Screenshot to My AI Session. The Model Never Saw It.
Medium · JavaScript 🧠 Large Language Models ⚡ AI Lesson 2mo ago
I Appended a Screenshot to My AI Session. The Model Never Saw It.
How a multimodal prompt, an on-device LLM, and one subtle API pattern led to one of the strangest bugs I’ve encountered while building… Continue reading on Medi
Medium · JavaScript 🧠 Large Language Models ⚡ AI Lesson 2mo ago
Stop Guessing Your LLM Costs — Build Token Observability with all-llm-token-tracker
Track Every LLM Token in Node.js: A Lightweight npm Package for Input/Output Usage Monitoring Continue reading on Medium »
Medium · JavaScript 🧠 Large Language Models ⚡ AI Lesson 2mo ago
Identifiers in Javascript
An identifier is a name used to identify a variable, function, class, or other programming element. Continue reading on Medium »
Le serveur MCP (Model Context Protocol) pour les enfants
Medium · JavaScript 🧠 Large Language Models ⚡ AI Lesson 2mo ago
Le serveur MCP (Model Context Protocol) pour les enfants
Express.js vs MCP : la même logique, une API que les LLM comprennent mieux Continue reading on Medium »
✉️ Stop Juggling LLM API Keys: Build Your Own Edge Router on Cloudflare Workers
Medium · JavaScript 🧠 Large Language Models ⚡ AI Lesson 2mo ago
✉️ Stop Juggling LLM API Keys: Build Your Own Edge Router on Cloudflare Workers
From “write this email in my tone” to a polished draft in one API call — with automatic fallback when Groq rate-limits you. Continue reading on Medium »
Medium · JavaScript 🧠 Large Language Models ⚡ AI Lesson 2mo ago
Mastering TypeScript — What Is a Type?
“The most powerful feature of TypeScript isn’t that it lets you write types — it’s that it can often figure them out for you.” Continue reading on Medium »
Medium · JavaScript 🧠 Large Language Models ⚡ AI Lesson 2mo ago
Reverse string(javascript-leetcode problem)
Write a function that reverses a string. The input string is given as an array of characters s. Continue reading on Medium »