Scala

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Last Update	09/19/2026
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Section 3: Object-Oriented Scala

6Lessons ·
- 15: Abstract Classes vs Traits
  
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Section 4: Functional Scala

7Lessons ·
- 18: Immutability and Persistent Collections
  
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Section 6: Type System

5Lessons ·
- 28: Type Classes in Scala
  
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Section 16: Akka Ecosystem Deep Dive

6Lessons ·
- 66: Akka Actor Lifecycle
  
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Section 23: Functional Domain Modeling

4Lessons ·
- 98: Modeling Domains with Algebraic Data Types
  
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- 99: Smart Constructors for Validation
  
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Section 26: More Practical Projects

4Lessons ·
- 112: Building a Functional Domain Model for an E-Commerce System
  
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Section 27: More Interview and Review

5Lessons ·
- 117: Interview Practice: System Design Basics for Scala Backend Roles
  
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Section 30: Scala Microservices Architecture

4Lessons ·
- 126: Building Microservices with Akka and Play
  
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- 127: Service Discovery Patterns in Scala
  
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- 128: Circuit Breakers with Akka
  
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Section 31: Scala Type System Deep Dive

5Lessons ·
- 130: Higher-Kinded Types
  
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- 132: F-Bounded Polymorphism
  
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Section 35: Scala for Reactive Systems

3Lessons ·
- 148: Backpressure Handling in Reactive Streams
  
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- 149: Building Resilient Systems with Akka Supervision
  
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Section 37: Scala for Financial Systems

3Lessons ·
- 155: Event Sourcing for Audit Trails in Scala
  
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Section 47: More Practical Backend Patterns

4Lessons ·
- 190: API Gateway Pattern in Scala Microservices
  
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Section 48: Scala for Event-Driven Architecture

3Lessons ·
- 191: Event Sourcing Patterns with Akka Persistence Revisited
  
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- 192: CQRS Pattern Implementation in Scala
  
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- 193: Saga Pattern for Distributed Transactions
  
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Section 51: Scala for Web Frontends

4Lessons ·
- 204: Sharing Code Between Backend and Frontend with Scala.js
  
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Section 53: Scala Observability

4Lessons ·
- 210: Structured Logging in Scala Applications
  
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Section 55: Scala for Legacy Java Integration

4Lessons ·
- 222: Incremental Migration Strategies from Java to Scala
  
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Section 58: Scala History and Ecosystem Context

5Lessons ·
- 234: Scala's Design Philosophy and History
  
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- 238: Notable Companies and Systems Built with Scala
  
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Section 59: More Concurrency Patterns

4Lessons ·
- 240: Actor Model vs CSP Model Comparison
  
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Section 60: Scala for Configuration Management

4Lessons ·
- 244: Environment-Specific Configuration Patterns
  
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Section 61: More Domain Modeling Practice

4Lessons ·
- 250: Practice Exercise: Modeling a Multi-Currency Wallet System
  
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