v3 new lesson scripts

introduction/ai-assisted-dev-setup/README.md

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+# AI-Assisted Development Environment Setup
+
+In this lesson, we will learn about setting up an AI-assisted development environment. We'll have a quick overview of what AI-assisted coding tools are and how we can use their features to make our development process easier and more efficient.
+
+## What are AI-Assisted Coding Tools?
+
+AI-assisted coding tools are advanced software that use artificial intelligence to help developers write code more efficiently. These tools can suggest code completions, explain code snippets, and even generate entire functions based on natural language descriptions.
+
+There is no need to be an expert programmer to use these tools. They're designed to assist developers of all skill levels, from beginners to experts.
+
+AI-assisted coding tools are used for some common tasks in development as follows:
+
+— Auto-completing code
+
+— Generating code snippets
+
+— Explaining complex code
+
+— Suggesting best practices
+
+## Popular AI-Assisted Coding Tools
+
+We will focus on three popular AI-assisted coding tools:
+
+1. **GitHub Copilot**: An AI pair programmer that integrates with various code editors.
+
+2. **Supermaven**: A tool that provides AI-powered code completion and generation.
+
+3. **Cursor**: An AI-first code editor with powerful code generation capabilities.
+
+## A Note on Pricing
+
+It's important to note that while many AI-assisted coding tools offer free tiers, some may have paid plans with additional features. As students, we recommend using the free tier when available. The free tier is typically more than sufficient for most of your use cases, especially when you're learning and working on personal or school projects.
+
+Always check the pricing information on the official websites of these tools. If a tool doesn't offer a free tier, there are usually alternatives available that do. Remember, the goal is to enhance your learning experience without incurring unnecessary costs.
+
+## Setting Up GitHub Copilot
+
+Let's learn how we can set up GitHub Copilot in Visual Studio Code.
+
+First, ensure you have Visual Studio Code installed on your computer. Then follow these steps:
+
+1. Open Visual Studio Code.
+2. Go to the Extensions view by clicking on the square icon on the left sidebar or pressing `Ctrl+Shift+X`.
+3. Search for "GitHub Copilot" in the search bar.
+4. Click on the "Install" button next to the GitHub Copilot extension.
+5. Once installed, you'll need to sign in to your GitHub account.
+6. After signing in, Copilot will be activated and ready to use.
+
+When you start typing code, Copilot will offer suggestions in gray text. To accept a suggestion, press Tab.
+
+## Using Supermaven
+
+Supermaven is another powerful AI-assisted coding tool. Here's how you can start using it:
+
+1. Go to the [Supermaven website](https://supermaven.com).
+2. Sign up for an account or log in if you already have one.
+3. Supermaven works in your browser, so there's no need to install additional software.
+4. Once logged in, you can start a new project or import an existing one.
+5. As you code, Supermaven will offer suggestions and can even generate entire functions based on your comments.
+
+## Setting Up Cursor
+
+Cursor is an AI-first code editor. Here's how to get started with it:
+
+1. Go to the [Cursor website](https://cursor.com).
+2. Download the Cursor application for your operating system.
+3. Install and launch Cursor.
+4. Sign up for an account or log in if you already have one.
+5. Once set up, you can start a new project or open an existing one.
+6. Cursor provides AI-assisted coding features as you work, including code generation and explanation.
+
+## Using AI-Assisted Coding Tools
+
+While using these AI-assisted coding tools, keep in mind:
+
+1. Always review the suggested code before accepting it.
+2. Use the tools to learn and understand new coding patterns.
+3. Practice writing code on your own as well, don't rely solely on AI suggestions.
+4. Use AI tools to speed up repetitive tasks, allowing you to focus on more complex problems.
+
+## Conclusion
+
+AI-assisted coding tools like GitHub Copilot, Supermaven, and Cursor can significantly enhance your coding experience and productivity. They offer powerful assistance, especially for beginners who are still learning the intricacies of programming.
+
+As you continue your journey in web development, these tools can help you write code faster and learn new programming concepts. However, remember that they are assistants, not replacements for understanding and writing code yourself.
+
+In future lessons, we'll explore more advanced coding techniques and how to leverage these AI-assisted tools effectively in larger projects.

introduction/browser-event-loop/README.md

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+# Browser Event Loop
+
+In this lesson, we will learn about an important concept in web browsers called the event loop. We'll have a quick overview of what the event loop does and how it helps make web pages responsive. We'll also learn about some of its key components and how they work together.
+
+## What is the Browser Event Loop?
+
+The browser event loop is a core mechanism that allows web browsers to handle multiple tasks efficiently. It's responsible for executing code, processing events, and managing asynchronous operations.
+
+There is no need to install anything to use the event loop. It's a built-in feature of web browsers and works behind the scenes to keep web pages running smoothly.
+
+The browser event loop is used for some common tasks in web applications as follows:
+
+— Handling user interactions (like clicks and keypresses)
+
+— Managing timers and animations
+
+— Processing network requests
+
+— Updating the display
+
+## Key Components of the Event Loop
+
+Before we learn more about how the event loop works, it's better to have an understanding of its main components:
+
+1. **Call Stack**: This is where JavaScript keeps track of function calls and their execution.
+
+2. **Task Queue**: This is where tasks (like event callbacks) wait to be processed.
+
+3. **Microtask Queue**: A special queue for high-priority tasks, typically created by Promises.
+
+4. **Web APIs**: Browser features that handle tasks like timers, DOM events, and network requests.
+
+## How the Event Loop Works
+
+Let's learn how the event loop uses these components to keep web pages responsive.
+
+The event loop constantly checks if the call stack is empty. If it is, it looks at the microtask queue first, then the task queue, and moves tasks to the call stack for execution.
+
+Here's a simple representation of how the event loop works:
+
+1. Execute all tasks in the call stack.
+2. Once the call stack is empty, check the microtask queue.
+3. Execute all microtasks until the queue is empty.
+4. Check the task queue and move one task to the call stack.
+5. Repeat the process.
+
+This cycle continues as long as the web page is open, allowing the browser to handle multiple operations efficiently.
+
+## Asynchronous vs Synchronous Operations in Browsers
+
+While using JavaScript in browsers, you'll encounter both synchronous and asynchronous operations.
+
+Synchronous operations are executed one after another, blocking further execution until they're completed. Asynchronous operations, on the other hand, don't block the execution of the program. They're initiated and then run in the background, with their results processed later.
+
+It's generally better to use asynchronous operations for time-consuming tasks (like network requests) because they don't prevent the rest of the code from running, keeping the web page responsive.
+
+## The Event Loop in Action
+
+Let's consider a simple scenario to understand how the event loop works in practice:
+
+1. A user clicks a button that triggers a network request.
+2. The click event callback is added to the task queue.
+3. The network request is handed off to the Web APIs.
+4. The event loop continues processing other tasks.
+5. When the network request completes, its callback is added to the task queue.
+6. The event loop eventually processes these callbacks, updating the web page.
+
+This all happens quickly, making the web page feel responsive even while handling multiple operations.
+
+## Conclusion
+
+The browser event loop is a crucial mechanism that enables smooth and efficient operation of web pages. As you continue developing web applications, understanding how the event loop works will help you write more efficient and responsive code.
+
+The event loop involves many complex interactions behind the scenes, but the core concept is straightforward: it keeps your web page running smoothly by managing tasks efficiently.