Refactoring Code Smells Hands-On

Course
34 Lessons

Gary Kasparov said: it is the combination of patterns that matters. Similarly, when refactoring, it is the combination of techniques that matters. Watch me refactoring code that smells bad! Applying the different techniques to several use cases. This hands-on course will transform you into a clean coder!

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Module 1 - Introduction

The Goals of The Session

Module 2 - Customer Billing

Code Diagram

Code with Bad Smells

Self-testing Code

Extract Method Technique

Pullup Method (Martin Fowler)

Module 3 - Print Report

Code Diagram

Preview

Code with Bad Smells

Preview

Self-testing Code

Preview

Method Object (Kent Beck)

Preview

Extract Method Technique

Preview

Template Method (Gang of Four)

Preview

Module 4 - Rate Calculator

Code with Bad Smells

Self-testing Code

Decompose Conditional Technique

Module 5 - Price Calculator

Code with Bad Smells

Self-testing Code

Replace Temp with Query Technique (Martin Fowler)

Refactoring and Performance

Module 6 - Salary Payment

Code with Bad Smells

Replace Type Code with Subclasses Technique

Replace Conditional with Polymorphism

Module 7 - Loan Calculator

Code with Bad Smells

Self-testing Code

Replace Method with Method Object

Extract Method

Decompose Conditional

The Outcome So Far

Replace Type Code with Subclasses

Replace Conditional with Polymorphism

Module 8 - Final Thoughts

Thoughts

Bonus

code_smells_before_code.zip

code_smells_after_code.zip

Code Smells Hands-On.pdf