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In Swift, what is the main reason you must explicitly convert between numeric types like Int and Double?

easy📝 Conceptual Q1 of 15
Swift - Data Types
In Swift, what is the main reason you must explicitly convert between numeric types like Int and Double?
ABecause implicit conversions are automatically done by the compiler
BBecause Swift does not support numeric operations
CTo make the code run faster
DTo avoid unexpected data loss or precision errors
Step-by-Step Solution
Solution:
  1. Step 1: Understand type safety

    Swift enforces strict type safety to prevent bugs.
  2. Step 2: Recognize precision issues

    Implicit conversion could cause loss of precision or unexpected results.
  3. Final Answer:

    To avoid unexpected data loss or precision errors -> Option D
  4. Quick Check:

    Explicit conversion ensures safe and predictable numeric operations [OK]
Quick Trick: Swift requires explicit conversion to prevent data loss [OK]
Common Mistakes:
  • Assuming Swift automatically converts numeric types
  • Thinking implicit conversion improves performance

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