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CodeSignal

Applying Clean Code Principles in Scala

via CodeSignal

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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.

Syllabus

  • Unit 1: DRY (Don't Repeat Yourself) in Action
    • Applying the DRY Principle in Calculating Averages
    • Variable Extraction and PI Constant Refactoring in Circle Calculations
    • Replace Temp Variables with Query Methods in Scala
  • Unit 2: KISS (Keep It Simple, Stupid) Strategies
    • Refactor for Simplicity and Readability
    • Simplifying Leap Year Calculation
    • Simplify Palindrome Checker Using the KISS Principle
  • Unit 3: Law of Demeter: Limiting Object Interactions for Cleaner Code
    • Adhering to the Law of Demeter in a Library System
    • Refactoring for the Law of Demeter in a Food Delivery Service System
  • Unit 4: Understanding and Implementing SOLID Principles
    • Refactoring for Single Responsibility Principle in Scala
    • Open/Closed Principle Refactoring for Product Pricing
    • Implementing the Interface Segregation Principle in Scala
    • Implementing Dependency Inversion Principle with Printers in Scala

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