Mastering JavaScript Dates and Times
Managing dates and times in JavaScript is notoriously tricky, often leading to subtle bugs that only surface once an application hits production. To help you...
Beau Carnes - freecodecamp
Development
How to Defend Your JavaScript App Against Unsafe Data with TypeScript Guard Utilities
Picture this: you hit an API endpoint, and you get an API response back. You pass the data straight into your application, and everything looks fine in...
Kelechi Apugo - freecodecamp
How to Build a Browser-Based PDF Margin Tool Using JavaScript
Adding margins to a PDF is a common task when preparing documents for printing, binding, archiving, or sharing professionally. While many PDF editors include...
Bhavin Sheth - freecodecamp
How to Build a Text Compare Tool with HTML, CSS, and JavaScript
Have you ever tried to spot the differences between two long paragraphs of text? Reading line-by-line to find a missing word or a new sentence is a massive...
Bansidhar Kadiya - freecodecamp
UX
Matching AI Modality To User Intent: Designing The Right Interface
We’ve fallen into conversational tunnel vision, defaulting every AI capability into a chat-based interface simply because LLMs are trained on dialogue data. But great UX is about...
Victor Yocco - smashingmagazine
UI
Why Accessibility Is An Operational Capability, Not A Feature
Teams can generate UI faster than ever, but they still have to guarantee that what they ship is usable, secure, and maintainable. Accessibility as an operational capability rather...
Mikhail Prosmitskiy - smashingmagazine
Security
The Cloud Pentesting Problem: Why Traditional Security Models Stop Working at Scale
Cloud adoption changed how companies build software. It changed deployment speed, infrastructure management, and the way engineering teams operate. It also...
Manish Shivanandhan - freecodecamp
Other
How to Build a RAG Q&A AI Agent for Your Documents Using LangChain v1
In this tutorial, I'll show you how to build a private local RAG-powered Q&A AI agent for your personal documents using LangChain v1, Ollama, Qwen, and...
Darsh Shah - freecodecamp
Codex vs Claude Code: Which AI Coding Assistant to Choose
AI coding assistants have evolved from simple autocomplete tools into capable development agents that can write code, debug applications, refactor projects,...
Manish Shivanandhan - freecodecamp
Product Experimentation: Stop Early Without P-Hacking Using mSPRT and Sequential Testing in Python
Your AI product experiment reaches statistical significance on day 14 of a planned 30-day run, measuring a causal inference question: did the LLM-based...
Rudrendu Paul - freecodecamp
What is a JSON Schema?
If you're a developer, you likely work with JSON a lot. But how do you define and validate JSON and prevent problems from malformed JSON data? This article...
Chidiadi Anyanwu - freecodecamp
How to Build a Zero-Cost Personal Project with PHP, Wasmer, and Cloudflare
Recently, I wanted to reinvigorate my open-source project Clarity, an icon theme for Linux (GTK+). The icons allow users to create custom colors by adding SVG...
Jakub T. Jankiewicz - freecodecamp
Snapshots Of Summer (July 2026 Wallpapers Edition)
July is just around the corner, and that means... It’s time for some new desktop wallpapers! As every month, the wallpapers in this collection were created by the community for the...
Cosima Mielke - smashingmagazine