JavaScript Fundamentals - Zero to Advanced

A comprehensive JavaScript course taking you from absolute beginner to advanced concepts. This repository contains all the code examples, exercises, and resources from the premium YouTube course series.

📚 Course Overview

This course is designed to provide a solid foundation in JavaScript programming, covering everything from basic syntax to advanced concepts like closures, functional programming, and object-oriented programming.

🎯 Who Is This Course For?

• Complete Beginners - No prior programming experience required
• Self-taught Developers - Fill gaps in your JavaScript knowledge
• Career Switchers - Build a strong foundation for web development
• Students - Supplement your computer science education

🗂️ Course Structure

The course is divided into 50 comprehensive lessons covering:

Fundamentals (Lessons 1-13)

• Course introduction and environment setup
• Variables and data types
• Operators and expressions
• Math and Date functions
• Comments and code organization

Control Flow (Lessons 14-24)

• Conditional statements (if/else, switch)
• Logical operators
• Loops (for, while, do-while)
• Loop control (break, continue)

Data Structures (Lessons 25-37)

• Strings: methods and manipulation
• Arrays: operations and methods
• Objects: properties and methods
• Multidimensional arrays

Functions (Lessons 38-47)

• Function basics and expressions
• Scope and closures
• Higher-order functions
• Functional programming concepts
• Array methods (map, filter, reduce, etc.)
• Recursion, currying, and composition

Advanced Concepts (Lessons 48-50)

• JavaScript engine and execution context
• Hoisting and scope chain
• Introduction to OOP

📂 Repository Structure

JavaScript-Fundamentals/
├── 01-course-introduction/
├── 02-who-is-this-course-for/
├── 03-setting-up-environment/
├── 04-first-javascript-code/
├── 05-variables/
├── ...
├── 50-oop-intro/
└── README.md

Each lesson folder contains:

• README.md - Lesson notes and explanations
• script.js - Code examples
• exercises.md - Practice problems
• solution.js - Exercise solutions (where applicable)

🚀 Getting Started

Prerequisites

• A modern web browser (Chrome, Firefox, Edge, or Safari)
• A code editor (VS Code recommended)
• Node.js (optional, for running scripts locally)

Setup

1. Clone this repository:

git clone https://github.com/FullStack-Flow/JavaScript-Fundamentals.git

2. Navigate to any lesson folder:

cd JavaScript-Fundamentals/04-first-javascript-code

3. Open the files in your code editor or run them in the browser console

💡 How to Use This Course

1. Watch the Video - Each lesson has a corresponding YouTube video
2. Read the Notes - Review the README.md in each lesson folder
3. Practice the Code - Type out all examples (don't just copy-paste!)
4. Complete Exercises - Test your understanding with practice problems
5. Build Projects - Apply what you learned in mini-projects

📺 YouTube Channel

Follow along with the video tutorials on YouTube: Course Playlist

Each lesson in this repository corresponds to a video in the playlist.

🙏 Acknowledgments

• Thanks to all students who provided feedback
• Inspired by the JavaScript community

📞 Connect

• YouTube: Fullstack Flow
• Twitter: @FullstackFlow
• Discord: Discord Community

⭐ Support

If you find this course helpful, please:

• ⭐ Star this repository
• 👍 Like the videos on YouTube
• 📢 Share with others learning JavaScript
• 💬 Leave feedback and suggestions

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Happy Coding! 🚀

Last Updated: October 2025