Clean Code

Clean Code

Adi Boboacă

@adibolb

Alex Bolboacă

@alexboly

Clean Code

Clean Code

Code is more often read than written

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Clean Code – Environment

Build Requires One StepBuild time is manageable

Tests Execution Requires One StepAlways Use Source ControlHave Continuous Integration

Code Smell

SniffableEasy to spot

Does not always indicate a problem

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Code Smell

A code smell is a hint that shows you might have a problem in your system. '

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Coding Smells - Design

Misplaced ResponsibilityCode at Wrong abstraction Level

Fields Define Temp VariablesHidden Temporal Coupling

Over-engineeringUsage of Singleton / Statics / newInterface Has Too Many Methods

Clean Code - Design

Be PreciseDon't Be Arbitrary

Keep Configuration at High LevelsPrefer Polymorphism Over conditionalsPrefer Composition Over Inheritance

S.O.L.I.D.

Coding Smells – Naming

There Are Several Naming StandardsMore Names Mean The Same Concept

Someone Needs To Explain You The Code

Clean Code – Naming

Use Standards For The LanguageNames Use Domain LanguageNames Describe The Intention

Names Do Not Use Hungarian NotationNames Do Not Contain Encodings

Coding Smells - Methods

Method Has More Than 3 IndentsMethod Uses Getters From Other Classes

There Are Static MethodMethods & Ctors Have More Than 3 Args

Arguments Have out Or ref

Clean Code - Methods

Have Only One ResponsibilityUse Only Internal State (No Feature Envy)

Avoid StaticHave Maximum Two Arguments

Do Not Pass Reference As Arguments

Coding Smells - Variables

You see a, i, bla, etc. As VariablesYou see string, int, float, In ClassesThere Are Static Variables In Classes

Use Integers for Currency

Clean Code - Variables

Use Explanatory VariablesAlways Encapsulate Primitives

Avoid StaticsUse Appropriate Types

Clean Code - General

Boy Scout RuleKeep It Simple, Stupid (KISS)Delete Commented Code

Delete Unused CodeMinimize Duplication

Clean Code

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Clean Code

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