Coding Help Tips Resources Tutorials
Google Apps Scripts and Web Development Tutorials and Resources by Laurence Svekis
🟦 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
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 — 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 — 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
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
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
🚀 Node.js Interview Quiz (100 Questions with Answers) 1️⃣ Node.js Fundamentals (1–15) 1) What is Node.js? Answer: A JavaScript runtime built on Chrome’s V8 engine.Explanation: Node.js allows JS to run outside the browser, mainly for servers and tooling. 2) Is Node.js single-threaded? Answer: Yes (but it uses background threads).Explanation: JS runs on one thread, but … Read more
1) Basics, Types, Coercion (1–15) 1) What is the result of typeof null? A) “null” B) “object” C) “undefined” D) “number”Answer: B Explanation: A long-standing JS quirk: typeof null returns “object”. 2) What does NaN === NaN evaluate to? A) true B) falseAnswer: B Explanation: NaN is not equal to anything, even itself. Use Number.isNaN(x). … Read more
🟦 JavaScript Deep Dive — Issue #10 (Final) Building AI-Powered JavaScript Applications (Without Losing Control) How to integrate AI responsibly, predictably, and maintainably in real-world JS apps AI is no longer a novelty in JavaScript applications.It’s becoming infrastructure — used for search, assistants, personalization, content generation, tutoring, analytics, and automation. But most examples online focus … Read more
🟦 JavaScript Deep Dive — Issue #9 The Future of JavaScript: What’s Coming Next (And What Actually Matters) New language features, real-world impact, and what to learn vs ignore Every year brings new JavaScript features, proposals, APIs, and “next big things.”Some of them quietly improve everyday development.Others sound exciting… and never really change how we … Read more