JavaScript

Designing JavaScript APIs That Are Hard to Misuse JavaScript Deep Dive 14

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🟦 JavaScript Deep Dive — Issue #14 Designing JavaScript APIs That Are Hard to Misuse How senior engineers design interfaces that prevent bugs instead of documenting them Most bugs don’t come from bad logic.They come from APIs that are easy to use incorrectly. Senior engineers don’t just write code that works —they design APIs that … Read more

Creative Flow Without Chaos: Exploration, Prototyping & Safe Experimentation with AI

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🚀 Vibe Coding — Issue #18 Creative Flow Without Chaos: Exploration, Prototyping & Safe Experimentation with AI Creativity • Ideation • Prototypes • Sandboxes • Play Without Debt After incidents, deadlines, and pressure…there’s another side of development that matters just as much: creative exploration. This is where: Issue #18 is about separating “play” from “production” … Read more

Refactoring JavaScript Safely Deep Dive JavaScript 13

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🟦 JavaScript Deep Dive — Issue #13 Refactoring JavaScript Safely (Without Breaking Everything) How senior engineers improve code with confidence instead of fear Refactoring is where good intentions go to die. Most developers know their code could be better…but they’re afraid to touch it because: Senior engineers refactor anyway — but they do it safely. … Read more

Learn JavaScript by Building 20 Simple Games

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🎮 Learn JavaScript by Building 20 Simple Games A hands-on guide to core JavaScript concepts—through play The fastest way to really learn JavaScript isn’t memorizing syntax.It’s building small, interactive games that force you to think about logic, timing, state, and user interaction. That’s why I created a GitHub-ready collection of 20 simple JavaScript games, each … Read more

Reading JavaScript Code You Didn’t Write JavaScript Deep Dive 12

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🟦 JavaScript Deep Dive — Issue #12 Reading JavaScript Code You Didn’t Write (And Understanding It Fast) How senior engineers ramp up quickly in unfamiliar codebases Writing JavaScript is one skill.Reading and understanding existing JavaScript — especially someone else’s — is a completely different one. Most developers struggle not because the code is “bad”…but because … Read more

JavaScript Deep Dive

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How JavaScript Really Works — From Internals to Modern Applications JavaScript is one of the most widely used programming languages in the world. It runs in browsers, on servers, inside mobile and desktop apps, build tools, IoT devices, and increasingly inside AI-powered systems. For many developers, JavaScript is part of daily life. And yet, it’s … Read more

JavaScript Deep Dive Reading JavaScript Code You Didn’t Write

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🟦 JavaScript Deep Dive — Issue #12 Reading JavaScript Code You Didn’t Write (And Understanding It Fast) How senior engineers ramp up quickly in unfamiliar codebases Writing JavaScript is one skill.Reading and understanding existing JavaScript — especially someone else’s — is a completely different one. Most developers struggle not because the code is “bad”…but because … Read more

Debugging JavaScript Like a Senior Engineer Deep Dive JavaScript

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🟦 JavaScript Deep Dive — Issue #11 (Season 2 Kickoff) Debugging JavaScript Like a Senior Engineer How experts actually find bugs — and why juniors get stuck Most JavaScript bugs aren’t hard because the code is complex.They’re hard because we debug the wrong way. Senior engineers don’t “try random fixes.”They follow systems, mental models, and … Read more

100 Node.js Coding Snippets

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https://github.com/lsvekis/100-NodeJS-Snippets 1) Basic “Hello World” HTTP server What it does: Starts a basic HTTP server on port 3000.Use it for: Quick sanity checks, learning request/response basics. 2) Minimal server with routing (no frameworks) What it does: Routes by URL with if statements.Use it for: Tiny services, prototypes, understanding routing fundamentals. 3) Read JSON body from … Read more

Build a Game with JavaScript DOM Target Reaction Game

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JavaScript DOM Game Dev (Beginner-Friendly): Build a “Reaction + Score” Click Game If you can select an element, listen for a click, and update text on the page, you can build a game. The DOM (Document Object Model) is the browser’s “live” representation of your HTML. When you write JavaScript that changes what’s on screen—moving … Read more