Swift

Swift

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Last Update	09/17/2026
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Section 2: Core Syntax

6Lessons ·
- 4: Variables and Constants
  
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- 6: Control Flow Statements
  
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Section 3: Optionals

5Lessons ·
- 10: Understanding Optionals
  
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- 12: Guard Statements
  
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- 14: Nil Coalescing Operator
  
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Section 6: Generics and Error Handling

5Lessons ·
- 30: Custom Error Types
  
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Section 9: Codable and Data Handling

5Lessons ·
- 39: Custom Coding Keys and Strategies
  
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Section 15: More Standard Library

4Lessons ·
- 62: Working with Strings in Depth
  
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- 63: Working with Ranges
  
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Section 25: Error Handling Deep Dive

4Lessons ·
- 115: Recovering from Errors Gracefully
  
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Section 30: Swift Macros (Swift 5.9+)

4Lessons ·
- 135: Writing a Freestanding Macro
  
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- 137: Debugging Macro Expansion
  
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