Course Description
Take your JavaScript skills from foundational to formidable with Modern JavaScript Deep Dive: Advanced Concepts & Design Patterns. This course is meticulously designed for developers who have a solid understanding of JavaScript fundamentals and are ready to tackle complex challenges, optimize performance, and write enterprise-grade code.
We begin by solidifying your grasp of advanced scope, closures, and the intricacies of the `this` keyword. The course then takes a deep dive into asynchronous JavaScript, mastering Promises, Async/Await, and understanding the Event Loop to handle complex operations gracefully. You'll explore advanced aspects of Object-Oriented Programming (OOP) in JavaScript, breaking down each principle and applying them with prototypes and modern classes, along with Functional Programming (FP) in JavaScript, and common Design Patterns used in large-scale applications.
A significant focus is placed on the modern JavaScript ecosystem, covering essential tooling like NPM, Webpack/Vite, and Babel, crucial for efficient development workflows. You'll learn robust error handling and explore basic testing strategies to ensure code quality. Finally, we'll touch upon cutting-edge topics like TypeScript, preparing you for the demands of modern web development.
What You'll Learn:
- How JavaScript code is executed: Execution Context, Call Stack, Hoisting, Scope, Closures, and `this`.
- Modern ES6+ features: Arrow Functions, Destructuring, Spread/Rest Operators, Template Literals.
- Comprehensive Asynchronous JavaScript: Callbacks, Promises, Async/Await, Event Loop.
- In-depth Object-Oriented Programming (OOP) principles and their application in JavaScript with prototypes and ES6 Classes.
- Functional Programming paradigms and techniques.
- Implementing common JavaScript Design Patterns.
- Mastering the modern JavaScript tooling ecosystem: NPM, Module Bundlers (Webpack/Vite), Transpilers (Babel), Linters (ESLint).
- Advanced Error Handling and Custom Error Types.
- Introduction to JavaScript Testing with frameworks like Jest/Vitest.
- An introduction to TypeScript for type safety.
- Best practices for writing clean, maintainable, and scalable JavaScript code.
Who Is This Course For?
This course is for intermediate to advanced JavaScript developers who have a strong grasp of fundamental JavaScript concepts (variables, data types, basic functions, DOM manipulation, control flow). It's ideal for those looking to deepen their understanding, transition to building complex applications, optimize existing code, or prepare for senior front-end development roles.
Prerequisites:
- Solid JavaScript Fundamentals: A strong understanding of core JavaScript (covered in 'Vanilla JavaScript: The Absolute Beginner's Guide' or equivalent knowledge) is essential. This includes variables, data types, functions, arrays, objects, and basic DOM manipulation.
- Basic HTML & CSS: Familiarity with HTML structure and basic CSS styling.
- A Computer/Laptop: A working computer (Windows, macOS, or Linux) capable of running modern development tools.
- Command Line Basics: Comfort with basic command-line operations (e.g., navigating directories, running commands).
- A Strong Desire to Master Advanced Concepts: Be prepared for in-depth technical discussions and complex coding challenges.
Includes multiple challenging mini-projects, a comprehensive capstone project, and a certificate upon completion. Available in English and Hindi.
1. Introduction to JavaScript Execution: Interpreted vs. Compiled
20min
2. Understanding the JavaScript Engine (V8 Overview)
25min
3. The Global Execution Context and Its Components
30min
4. Function Execution Contexts and the Call Stack
35min
5. Hoisting: Variables and Functions in Detail
30min
6. Lexical Scoping and Scope Chain Deep Dive
35min
7. Closures: The Power of Persistent Lexical Scope
40min
8. The `this` Keyword: Understanding Context Binding
35min
9. `call()`, `apply()`, and `bind()` for Explicit `this` Control
30min
10. Recap & Practical Task: Trace Execution Flow and Implement Closures
1hr
11. Arrow Functions: Syntax, Benefits, and `this` Binding Differences
30min
12. Destructuring Assignment (Arrays and Objects) for Concise Code
35min
13. Spread Operator (`...`) for Array and Object Manipulation
30min
14. Rest Parameters (`...`) for Flexible Function Arguments
25min
15. Template Literals and Tagged Templates for Advanced String Handling
20min
16. Enhanced Object Literals (Shorthand Properties, Method Properties, Computed Property Names)
20min
17. Default Parameters and Named Parameters (via Destructuring)
20min
18. Recap & Practical Task: Refactor Existing Code Using Modern ES6+ Syntax
50min
19. The Asynchronous Nature of JavaScript: Blocking vs. Non-Blocking
20min
20. The Event Loop, Callback Queue, and Microtask Queue in Depth
35min
21. Callbacks Revisited: Asynchronous Patterns and Callback Hell Solutions
30min
22. Promises: Introduction, States, and Chaining (`.then()`, `.catch()`, `.finally()`)
45min
23. Composing Promises: `Promise.all()`, `Promise.race()`, `Promise.allSettled()`, `Promise.any()`
40min
24. Async/Await: Writing Synchronous-Looking Asynchronous Code
50min
25. Error Handling in Asynchronous Code with Promises and Async/Await
30min
26. Fetch API: Advanced Usage, Request Options, and Interceptors (Conceptual)
40min
27. Recap & Practical Task: Build a Complex Data Dashboard with Asynchronous Operations
1hr 15min
28. Introduction to OOP: Fundamental Concepts and Paradigms
25min
29. OOP Principle: Encapsulation (Data Hiding and Bundling)
30min
30. OOP Principle: Inheritance (Code Reusability and Hierarchy)
30min
31. OOP Principle: Polymorphism (Many Forms, Single Interface)
25min
32. OOP Principle: Abstraction (Showing Essentials, Hiding Details)
25min
33. Prototypal Inheritance in JavaScript: The `__proto__` Chain
35min
34. Constructor Functions and the `new` Keyword
30min
35. ES6 Classes: Syntactic Sugar over Prototypes (Class Declaration, Expression)
40min
36. Class Methods: Instance Methods, Static Methods, and `this` in Classes
35min
37. Class Inheritance with `extends` and `super()`
35min
38. Getters and Setters for Controlled Property Access
25min
39. Private Class Fields (ECMAScript 2022) for True Encapsulation
20min
40. Mixins and Composition over Inheritance (Advanced OOP Patterns)
30min
41. Recap & Practical Task: Design and Implement an OOP-based Application (e.g., a Library Management System)
1hr 15min
42. Introduction to Functional Programming: Core Principles and Benefits
25min
43. Pure Functions, Side Effects, and Immutability
30min
44. Higher-Order Functions: Functions as First-Class Citizens
25min
45. Currying and Partial Application for Function Transformation
35min
46. Function Composition and Pipelining Data
30min
47. Recursion and Iteration in FP Context
25min
48. Recap & Practical Task: Refactor a Data Processing Pipeline Using FP Principles
50min
49. Introduction to Design Patterns: Benefits and Categories (Creational, Structural, Behavioral)
20min
50. Creational Patterns: Singleton Pattern
30min
51. Creational Patterns: Factory Pattern
25min
52. Structural Patterns: Module Pattern and Revealing Module Pattern
35min
53. Structural Patterns: Facade Pattern
25min
54. Behavioral Patterns: Observer Pattern (Pub/Sub)
30min
55. Behavioral Patterns: Strategy Pattern
25min
56. Recap & Practical Task: Apply a Design Pattern to Solve a Common Problem
50min
57. ES Modules: Advanced Import/Export Syntax and Dynamic Imports
30min
58. Node Package Manager (NPM) and Yarn: Advanced Usage
30min
59. Module Bundlers: Why We Need Them (Webpack/Vite Concepts)
40min
60. Transpilers: Babel Configuration and Presets
30min
61. Code Linting with ESLint: Custom Rules and Integration
25min
62. Code Formatting with Prettier
15min
63. Recap & Practical Task: Set up a Modern JavaScript Project with Bundling and Linting
1hr
64. Custom Error Types and Extending `Error`
25min
65. Handling Asynchronous Errors (Promises, Async/Await Error Propagation)
30min
66. Global Error Handling (`window.onerror`, `unhandledrejection`)
25min
67. Debugging Strategies in Browser DevTools (Breakpoints, Call Stack, Scopes)
35min
68. Using Node.js Debugger
20min
69. Logging Best Practices
15min
70. Recap & Practical Task: Implement Robust Error Handling in a Web Application
45min
71. Importance of Testing: Unit, Integration, and End-to-End Testing Overview
20min
72. Test Driven Development (TDD) Workflow
25min
73. Setting up a Unit Testing Environment with Jest/Vitest
30min
74. Writing Effective Unit Tests: Assertions, Matchers, and Test Suites
40min
75. Mocking Dependencies and Spying on Functions
35min
76. Basic Integration Testing Concepts
20min
77. Recap & Practical Task: Write Unit Tests for a Complex JavaScript Module
1hr
78. Why TypeScript? Benefits for Scalability and Maintainability
25min
79. Basic Types, Type Annotations, and Type Inference
30min
80. Interfaces and Type Aliases for Defining Shapes
25min
81. Classes and Enums in TypeScript
30min
82. Understanding the TypeScript Compiler (`tsc`) and `tsconfig.json`
25min
83. Integrating TypeScript into a JavaScript Project Workflow
20min
84. Recap & Practical Task: Convert a Small JavaScript Application to TypeScript
1hr
85. Project Planning and Architecture: Applying Advanced Concepts and Patterns
1hr
86. Setting Up the Project with a Modern Build Tool and Development Server
1hr
87. Developing Core Features with Advanced JS, Asynchronous Patterns, and OOP/FP
2hr
88. Implementing Robust Error Handling and Testing
1hr 30min
89. Deployment Strategies for Modern JavaScript Applications
45min
90. Final Project Presentation and Code Review
1hr
91. Recap & Course Completion
40min
