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CodeSignal

Applying Clean Code Principles

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Overview

Apply essential clean code principles, such as DRY, KISS, Law of Demeter, and SOLID. This course helps reinforce best practices through practical implementation and real-world examples in Kotlin.

Syllabus

  • Unit 1: Applying Clean Code Principles: Embracing DRY in Kotlin
    • Applying DRY Principle with Function Extraction in Kotlin
    • Extracting Constants to Apply the DRY Principle
    • Replace Temp with Query in Kotlin
  • Unit 2: Applying the KISS Principle in Kotlin
    • Simplifying Order Cost Calculation Using KISS Principle
    • Simplifying Leap Year Calculation
    • Simplifying String Manipulations: Palindrome Checker
  • Unit 3: Applying the Law of Demeter in Kotlin
    • Improving Object Interactions in a Library System
    • Refactoring Food Delivery Service to Follow the Law of Demeter
  • Unit 4: Applying SOLID Principles in Kotlin
    • Refactor Course Management System for Single Responsibility
    • Open/Closed Principle Refactoring Exercise
    • Refactoring Vehicle Interface Using Interface Segregation Principle
    • Implementing Dependency Inversion in Kotlin

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