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freeCodeCamp

JavaScript Clean Code Course - Fix Code Smells and Refactor

via freeCodeCamp

Overview

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Learn how to transform messy, hard-to-maintain JavaScript code into clean, readable, and professional-quality code through this comprehensive video course. Discover what code smells are, why they matter in software development, and master step-by-step refactoring techniques using proven clean code principles. Explore the software development lifecycle and understand how proper coding practices fit into the broader development process. Identify common code smells across multiple categories including formatting and readability issues, naming and structural problems, code complexity challenges, logic and maintainability concerns, design and architecture flaws, error handling weaknesses, and performance inefficiencies. Master practical refactoring strategies through real-world examples and learn to leverage modern development tools like ESLint and Prettier for automated code quality enforcement. Gain insights into best practices for writing maintainable JavaScript code that scales effectively in professional environments, with access to source code, practical tasks, and additional resources including recommended readings and community support channels.

Syllabus

- 0:00:00 Intro
- 0:01:34 Agenda
- 0:03:55 Why Clean Code Matters?
- 0:04:58 Learning Objectives
- 0:06:38 SDLC & Coding Phase
- 0:09:02 What is Code Smell?
- 0:13:01 Why Code Smell is Bad?
- 0:16:20 What is Clean Code?
- 0:17:59 How to Detect Code Smells?
- 0:21:36 Common Code Smells
- 0:24:03 Formatting & Readability
- 0:27:03 Naming & Structure
- 0:29:29 Code Complexity
- 0:31:42 Logic & Maintainability
- 0:33:19 Design & Architecture
- 0:34:27 Error Handling & Resilience
- 0:34:56 Performance & Efficiency
- 0:36:32 Refactoring
- 0:49:57 Tools
- 0:59:20 Best Practices
- 1:00:41 Further Resources
- 1:01:46 Tasks & Ending

Taught by

freeCodeCamp.org

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