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What is the main effect of calling freeze on a Ruby string?

easy📝 Conceptual Q1 of 15
Ruby - String Operations
What is the main effect of calling freeze on a Ruby string?
AIt deletes the string from memory.
BIt converts the string to uppercase.
CIt makes the string immutable, preventing any modifications.
DIt allows the string to be modified faster.
Step-by-Step Solution
Solution:

  1. Step 1: Understand the purpose of freeze in Ruby

    Calling freeze on an object in Ruby makes it immutable, meaning it cannot be changed after freezing.

  2. Step 2: Apply this to strings

    When a string is frozen, any attempt to modify it will raise an error, ensuring the string stays the same.

  3. Final Answer:

    It makes the string immutable, preventing any modifications. -> Option C

  4. Quick Check:

    String freezing = Immutable string [OK]
Quick Trick: Freeze strings to prevent accidental changes [OK]
Common Mistakes:
  • Thinking freeze deletes the string
  • Believing freeze changes string content
  • Assuming freeze speeds up modifications

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