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Kotlin Best Practices

Kotlin best practices un conventions, patterns, idioms aur guidelines ka collection hai jo Kotlin…

Overview

Kotlin Best Practices — Quick Facts

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Property: Detail

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Topic: Kotlin Best Practices

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Domain: Mobile Development, Server-side,…

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Applies To: Kotlin 1.0+ (particularly 1.5+ /…

Topic 1

Infobox

📚 | Property | Detail | |---|---| | Topic | Kotlin Best Practices | | Domain | Mobile…

Topic 2

Idiomatic Kotlin

💡 "Idiomatic" ka matlab hai Kotlin ko Kotlin ki tarah likhna — na Java ki tarah, na kisi…

Topic 3

Naming aur Code Style

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Agar file me ek top-level class…

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Agar multiple related top-level…

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IntelliJ default Kotlin formatting…

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ktlint ya detekt se enforce karo…

Topic 4

Null Safety Best Practices

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Test code me (controlled…

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Jab business logic guarantees…

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Hamesha comment ke saath kyun !!…

Topic 5

Coroutines Best Practices

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launch me exceptions propagate…

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async me exceptions await() pe…

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SupervisorJob use karo jab ek…

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Cold flows prefer karo hot flows…

Topic 6

Android-Specific Practices

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Business logic ViewModel me rakho,…

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viewModelScope use karo coroutines…

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StateFlow / LiveData se UI state…

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Configuration changes (rotation)…

Topic 7

Performance Optimization

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Thread-safe by default…

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First access pe initialize, baad…

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Sequence use karo large…

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List operations (map, filter)…

Topic 8

Architecture Patterns

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Model: Data layer (Repository,…

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View: UI layer (Activity,…

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ViewModel: UI logic + state…

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Domain layer: Pure Kotlin (no…

Topic 9

Error Handling Strategy

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Result<Success, Error> pattern

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Sealed hierarchy: NetworkError,…

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Caller ko force karo ke error…

Topic 10

Testing Best Practices

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JUnit 5 ya Kotest use karo

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MockK Kotlin-first mocking library…

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Test function names descriptive…

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AAA pattern follow karo: Arrange →…

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Dependency Injection

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Constructor injection prefer karo…

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Dependencies explicit honi chahiye…

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Interface pe depend karo,…

Topic 12

Code Organization

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Gradle modules se boundaries…

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:core, :domain, :data,…

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Module dependencies unidirectional…

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Domain module me koi platform…

Topic 13

Common Anti-Patterns

🔑 What to Avoid | Anti-Pattern | Problem | Better Approach | |---|---|---| | Overuse of !!…

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Linting aur Static Analysis

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Complex functions

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Long parameter lists

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Magic numbers

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Naming violations

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Best Practices Summary Table

🌟 | Category | Best Practice | Priority | |---|---|---| | Null Safety | Avoid !!, use ?. /…

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Mermaid: Kotlin Code Quality Flow

🚀 `mermaid flowchart TD A["Write Kotlin Code"] --> B["Run ktlint"] B -->|"Pass"| C["Run…

Diagram

Visual Flow

📊 Diagram visualization — details in narration

Quiz — Question 1

Kotlin Best Practices ka sabse sahi definition kya hai?

Quick Quiz

Quiz — Question 2

Kotlin Best Practices ka 'Topic' kya hai?

Complete! 🎉

Kotlin Best Practices Complete!

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