Design Patterns & Fundamentals in Node.js

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Overview

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This course features Coursera Coach! A smarter way to learn with interactive, real-time conversations that help you test your knowledge, challenge assumptions, and deepen your understanding as you progress through the course. Mastering design patterns in Node.js is an essential skill for developing maintainable and scalable applications. This course will guide you through the core principles of design patterns, from creational and structural to behavioral and advanced patterns, using real-world Node.js examples. By learning these patterns, you will enhance your ability to write cleaner code, manage dependencies effectively, and build robust systems. The course is divided into eight comprehensive modules, starting with an introduction to the prerequisites and course structure. You’ll explore various design patterns in-depth, from the Singleton and Factory patterns to the Strategy and State patterns. The course also covers advanced topics such as asynchronous task cancellation and asynchronous initialization, demonstrating how to handle concurrency and manage asynchronous workflows efficiently. The journey will take you through practical examples and case studies that challenge you to think critically and apply these patterns in real-world situations. This course is ideal for developers who have a basic understanding of Node.js and wish to deepen their knowledge of design patterns. It is suitable for intermediate-level learners looking to sharpen their skills in building scalable and maintainable software systems. Familiarity with JavaScript and basic web development concepts is recommended. By the end of the course, you will be able to apply design patterns such as Singleton, Factory, and Observer in Node.js, manage asynchronous flows with async/await and promises, and enhance your application's performance and scalability through advanced patterns.

Syllabus

Before You Start

In this module, we will guide you through the technical requirements needed to get started with the course and ensure you have everything set up correctly. You'll also receive an overview of the course structure to understand the learning journey ahead. This section lays the foundation for a smooth and effective learning experience.

Design Patterns – Creational Patterns

In this module, we will dive into creational design patterns such as Singleton, Factory, Builder, and Dependency Injection. You will learn how these patterns help manage object creation logic, ensuring more efficient and maintainable code. By the end of this section, you will be able to apply these patterns in real-world scenarios.

Design Patterns – Structural Patterns

In this module, we will explore structural design patterns that help in organizing and enhancing system structures. You will learn how to use patterns like Adapter, Proxy, Composite, and Decorator to solve real-world integration and object management challenges. By the end of this section, you will understand how to create flexible and scalable systems using these patterns.

Design Patterns – Behavioral Patterns

In this module, we will explore behavioral design patterns that manage the interaction and flow of control between objects. You will learn to apply patterns like Command, Observer, Strategy, and State to enhance the flexibility and maintainability of your application’s logic. This section equips you with the tools to handle complex workflows and behaviors with ease.

Advanced Patterns – Asynchronous Initialization

In this module, we will tackle the complexities of asynchronous initialization and explore how to handle delayed application startup effectively. You will learn patterns that ensure your app is ready before it starts processing, as well as how to enhance your async logic using the Command and State patterns. This section is designed to improve your understanding and handling of asynchronous processes in Node.js.

Advanced Patterns – Canceling Async Tasks

In this module, we will focus on managing asynchronous tasks, particularly the challenges of canceling tasks when needed. You’ll learn how to implement basic and advanced patterns for task cancellation and leverage generator functions for better control over asynchronous flow. This section will help you handle real-world complexities in managing async operations.

Fundamentals – Event Loop Under the Hood

In this module, we will uncover the inner workings of the event loop and how it drives asynchronous behavior in Node.js. You will gain an understanding of the call stack, task queue, and the scheduling mechanisms that manage tasks. This section equips you with the knowledge to optimize your code and improve application performance.

Fundamentals – Asynchronous Patterns

In this module, we will dive deep into asynchronous patterns like callbacks, promises, and async/await, which are fundamental to modern JavaScript development. You will learn best practices for managing asynchronous tasks, handle errors effectively, and explore hybrid approaches using both callbacks and events. This section will provide you with the tools to master asynchronous programming in Node.js.