Laurence Svekis

Laurence Svekis is a web technology enthusiast, educator, and author who has been working in the field for over 20 years. He has expertise in web development technologies, such as HTML, CSS, JavaScript, jQuery, Bootstrap, PHP, and MySQL. Svekis is a prolific course instructor on Udemy, with over 500,000 students enrolled in his courses. He has authored over 100 online courses, covering a wide range of web technologies and tools, such as Google Apps Script, WordPress, React, Node.js, Express.js, and MongoDB. His courses are known for their practical and hands-on approach, with a focus on real-world projects and examples. In addition to teaching, Svekis is also a published author, with several books to his name Svekis is passionate about empowering people with the skills and knowledge they need to succeed in the rapidly evolving field of web technology. He is committed to providing high-quality educational resources that are accessible to anyone, regardless of their background or experience level.

Closures Scope and Memory What Really Happens Under the Hood

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🟦 JavaScript Deep Dive — Issue #7 Closures, Scope & Memory: What Really Happens Under the Hood Why closures are powerful, dangerous, and often misunderstood Closures are one of JavaScript’s greatest superpowers — and one of its most common sources of bugs, memory leaks, and confusion. Most developers use closures.Far fewer truly understand what they … Read more

How AI Really Works

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Why English Is Not the Language AI Uses (and What Vectors & Embeddings Actually Are) One of the biggest misconceptions about AI is this: “AI understands English.” It doesn’t. AI processes English, but it does not think in English, store knowledge in English, or reason in English. To understand how AI actually works—and why it … Read more

Vibe Learning vs Vibe Coding

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Why Learning with AI Is Not the Same as Coding with AI AI is changing how we learn and how we build software—but these are not the same thing. One of the biggest mistakes I see right now is treating learning with AI and coding with AI as interchangeable. They’re not. In fact, confusing them … Read more

Mental Models and First Principles Thinking With AI

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🌟 VIBE LEARNING — ISSUE #12 (ADVANCED) Mental Models & First-Principles Thinking With AI How advanced learners simplify complexity and make better decisions. 👋 Welcome to Issue #12 (Advanced) In the last issue, we made a critical shift: 👉 from learning information👉 to learning how to think Now we go deeper. This issue introduces the … Read more

Apps Script Examples Gemini Embedding

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Below are ready-to-paste Google Apps Script examples you can add to your blog post, covering the two most useful embedding workflows: Replace YOUR_API_KEY_HERE with your key.These examples use the Generative Language API style endpoint. A) Minimal: Create an embedding for a text string B) Store document chunks + embeddings in Google Sheets This creates a … Read more

Gemini Embeddings Explained: How AI Turns Text into Meaning

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Artificial intelligence doesn’t actually read text the way humans do. It doesn’t understand grammar, tone, or meaning directly.Instead, modern AI systems rely on embeddings — a powerful technique that transforms text into numbers that represent meaning. Google’s Gemini embeddings make this process fast, scalable, and incredibly useful for real-world applications like semantic search, AI tutors, … Read more

API Keys Secrets and Secure Configuration in Google Apps Script

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📘 Lesson 4 — API Keys, Secrets & Secure Configuration in Google Apps Script Blog Post #4 in the Apps Script + APIs + Gemini Series If you’ve ever seen code like this: …you’ve already seen a problem. In this lesson, you’ll learn how to properly store and manage secrets (API keys, tokens, configuration values) … Read more

Vibe Coding at Scale AI for Teams Code Reviews and Long Lived Frontend Systems

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🚀 Vibe Coding — Issue #4 Vibe Coding at Scale: AI for Teams, Code Reviews & Long-Lived Frontend Systems JavaScript • HTML • CSS • Code Reviews • Team Workflows • System Consistency If Issue #3 was about shipping safely,Issue #4 is about not losing control as your codebase grows. At scale, the danger of … Read more

Google Docs Cleanup Toolkit

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https://github.com/lsvekis/Doc-Cleanup-Toolkit User & Developer Guide This guide explains what the Google Docs Cleanup Toolkit does, how to use it safely, and how each part of the system fits together. 1. What This Toolkit Is The Google Docs Cleanup Toolkit is a Google Apps Script project that helps you: It is designed to be: 2. Who … Read more

How JavaScript Engines Optimize Your Code

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🟦 JavaScript Deep Dive — Issue #6 How JavaScript Engines Optimize Your Code A practical V8 (and JS engine) deep dive every serious JS dev should understand Most JavaScript developers write code assuming the engine will “just handle it.” And often, it does. But once performance matters — large apps, data-heavy UIs, animations, AI workloads, … Read more