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⚡ AI Lessons

Dev.to · Saravanan Lakshmanan
🔧 Backend Engineering
⚡ AI Lesson
4h ago
Looping Exercises (With & Without if Condition)
1) Five students enter the classroom one after another. The first student gets roll number...

Dev.to · Iurii Rogulia
🔧 Backend Engineering
⚡ AI Lesson
4h ago
PDF Tamper Detection API for Ruby on Rails: Integration Guide
Integrate the HTPBE PDF tamper detection API into Ruby on Rails: a Faraday service object, a Data result struct, an ActiveJob, and an…

Dev.to · Mask Databases
🔧 Backend Engineering
⚡ AI Lesson
4h ago
ORM Fatigue: When Mongoose and Sequelize Get in Your Way
An honest look at where traditional ORMs like Mongoose and Sequelize can add friction for Node.js developers, especially with complex queries, and explores alte

Dev.to · Eduardo Lázaro
🔧 Backend Engineering
⚡ AI Lesson
4h ago
Add Livewire modals in Laravel with Wiremodal
Wiremodal is a framework-agnostic modal package for Laravel, which allows to handle modals, so you...

Dev.to · Elwin Ernst
🔧 Backend Engineering
⚡ AI Lesson
14h ago
Building a tamper-evident audit log in NestJS with hash chains
Most audit logs are a lie by omission. You write a row that says "user X deleted document Y at...

Dev.to · Aniket Misra
🔧 Backend Engineering
⚡ AI Lesson
15h ago
Escaping the Event Loop — A Deep Dive into worker_threads (Part 3/3)
In part 1, we built the core stack/microtask/macrotask model. In part 2, we saw how the browser and...

Dev.to · Seif Ahmed
🔧 Backend Engineering
⚡ AI Lesson
21h ago
I made a gift for you: A clean, lightweight Markdown Previewer
You seem so tired, deep in thought, With every question and answer you brought. So as a gift to ease...

Dev.to · Hamidreza
🔧 Backend Engineering
⚡ AI Lesson
23h ago
Networking Fundamentals for Developers: The Only Concepts You Need to Get Started
Networking can feel overwhelming with many protocols, devices, and concepts to learn. This guide...

Dev.to · Doogal Simpson
🔧 Backend Engineering
⚡ AI Lesson
1d ago
Why JavaScript Has Quirks (And Why TC39 Can't Fix Them)
TL;DR: JavaScript has notorious quirks because it was designed in just ten days as a prototype to...

Dev.to · sharefun2023
🔧 Backend Engineering
⚡ AI Lesson
1d ago
How I Built a Free SVG to PNG Converter in 1 Hour
I needed a quick way to convert SVG icons to PNG for a project. Every online converter I found...

Dev.to · Muhammad Mustafa
🔧 Backend Engineering
⚡ AI Lesson
1d ago
HTML to XLSX Conversion in Java
Turn messy HTML reports into clean Excel files with a single Java call. In this guide we walk...

Dev.to · Samuel Osemeke (oxcode__)
🔧 Backend Engineering
⚡ AI Lesson
1d ago
Understanding Race Conditions in Backend Systems and How to Solve Them with Express.js
Modern backend applications handle thousands or even millions of requests every second. Users perform...

Dev.to · jib2004
🔧 Backend Engineering
⚡ AI Lesson
1d ago
Building a CLI tool with Python(Click)
Not every useful tool needs a web interface, a database server, or a login page. Sometimes the...

Dev.to · Timevolt
🔧 Backend Engineering
⚡ AI Lesson
2d ago
Designing a URL Shortener: Mad Max Style Rate Limiting
The Quest Begins (The "Why") Ever tried to build a tiny link‑shortener and watched it...

Dev.to · takahiro hashito
🔧 Backend Engineering
⚡ AI Lesson
3d ago
Implementing UUID v7 with nothing but crypto.getRandomValues()
Introduction I run a site of small browser-only tools. Each one does a single thing, loads...

Dev.to · Simon Green
🔧 Backend Engineering
⚡ AI Lesson
3d ago
Weekly Challenge: Base substrings
Weekly Challenge 384 Each week Mohammad S. Anwar sends out The Weekly Challenge, a chance...

Dev.to · Feras Allaou
🔧 Backend Engineering
⚡ AI Lesson
3d ago
You already wrote your infrastructure. It's called your NestJS/ExpressJS App!
Adding a cron job should be one file Here's a thing that happens on every NestJS project...

Dev.to · Ciprian Tudor
🔧 Backend Engineering
⚡ AI Lesson
4d ago
Understanding Node.js Modules
I recently started learning Node.js, and one of the first concepts I came across was modules. I've...

Dev.to · PetrDev
🔧 Backend Engineering
⚡ AI Lesson
4d ago
Converting a JavaScript-Rendered Web Page to PDF
If you've ever tried to turn a modern web page into a PDF programmatically, you've probably hit the...

Dev.to · Bek Brace
🔧 Backend Engineering
⚡ AI Lesson
4d ago
Pascal Programming
One small confession before we begin. The first programming language I ever used was not Pascal. It...

Dev.to · Olayiwola Akinnagbe
🔧 Backend Engineering
⚡ AI Lesson
4d ago
Offline Table Builder: Build Tables Without an Internet Connection
Most web tools stop working the moment you lose your internet connection. For a table builder used on...

Dev.to · SybilGambleyyu
🔧 Backend Engineering
⚡ AI Lesson
4d ago
The style-hidden blind spot needs evidence, not guesswork
Word’s hidden-text problem is more subtle than a checkbox in a CI policy. A direct w:vanish property...

Dev.to · Tony Spiro
🔧 Backend Engineering
⚡ AI Lesson
4d ago
Bun vs Node vs Deno in 2026: How to Choose a JavaScript Runtime
Bun, Node.js, and Deno compared on ecosystem, TypeScript support, built-in tooling, and deployment. A practical framework for picking a runtime in 2026.

Dev.to · Hayrullah Kar
🔧 Backend Engineering
⚡ AI Lesson
4d ago
UrlFetchApp Quotas & Retries in Apps Script: Backoff, Rate Limits & a Dead-Letter Queue
A nightly product-enrichment job I built quietly dropped ~300 rows one night. No error, no alert. An...
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