DEV'S DAILY DIGEST

Development

How to Build a Browser-Based PDF to Grayscale Converter Using JavaScript

Many PDF documents contain colorful charts, presentations, marketing materials, scanned pages, or graphics that aren't always ideal for printing or archiving....

Bhavin Sheth - freecodecamp

Other

How to Work with Subqueries in SQL

Whenever you see a query nested inside another query in SQL, that's a subquery. A subquery is also known as an inner query while the one that contains it is...

Abdullah Rufai - freecodecamp

How to Scale LLM Inference for AI Agents Using vLLM

In this tutorial, I’ll show you how to scale LLM inference for AI agents using vLLM. I'll help you build an intuition for how LLM inference works, explore why...

Darsh Shah - freecodecamp

How to Manage Context Files in Your Codebase and Get Better Output From AI Coding Agents

You ask a coding agent for a new endpoint, and ninety seconds later you have a working endpoint. Then you read the diff, and you find that it pulled in a...

Kayode Adeniyi - freecodecamp

How to Build a Basic Discord Storytelling, Chat, and Mental Wellness Bot with Python

Discord bots can look surprisingly complicated when you see them in action. A bot can respond to messages, tell stories, remember parts of conversations, and...

Eva J Patel - freecodecamp

How to Build a Multi-Agent Trading Research System with LangChain Deep Agents [Full Handbook]

A trading research agent can write strategy code, run a backtest, inspect the results, and keep revising the strategy. The harder problem is making sure that...

Nikhil Adithyan - freecodecamp

Why Your Wearable Needs Weeks of Data Before It Becomes Useful

I can recall the time when I first put on the Oura Ring and checked my readiness score the next morning as if I were checking an exam score. I saw something...

Shradha Puri - freecodecamp