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How does Ruby's dynamic typing help when processing mixed data types in a list?

hard📝 Application Q9 of 15
Ruby - Variables and Data Types
How does Ruby's dynamic typing help when processing mixed data types in a list?
Example:
items = [10, "hello", 3.14, true]
AYou must convert all items to the same type before processing.
BYou can iterate and call methods on each item without type errors if methods exist.
CRuby will raise errors when different types are mixed in a list.
DYou need to declare the type of each item before adding to the list.
Step-by-Step Solution
Solution:
  1. Step 1: Understand dynamic typing with collections

    Ruby allows arrays to hold mixed types without restrictions.
  2. Step 2: Processing mixed types

    You can call methods on each item if those methods exist for that type, avoiding errors.
  3. Final Answer:

    You can iterate and call methods on each item without type errors if methods exist. -> Option B
  4. Quick Check:

    Dynamic typing supports mixed-type collections [OK]
Quick Trick: Mixed types in arrays are allowed and flexible [OK]
Common Mistakes:
  • Thinking all items must be same type
  • Expecting runtime errors for mixed types
  • Assuming type declarations are needed

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