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Which of the following is the correct syntax to freeze an array arr in Ruby?

easy📝 Syntax Q3 of 15
Ruby - Class Methods and Variables
Which of the following is the correct syntax to freeze an array arr in Ruby?
Aarr.freeze
Bfreeze(arr)
Carr.freeze!
Darr.frozen
Step-by-Step Solution
Solution:

  1. Step 1: Identify the method to freeze an object

    The method freeze is called on the object to freeze it.

  2. Step 2: Check correct syntax usage

    Calling arr.freeze is correct; options like freeze(arr), arr.freeze!, and arr.frozen are invalid.

  3. Final Answer:

    arr.freeze -> Option A

  4. Quick Check:

    Freeze array syntax = arr.freeze [OK]
Quick Trick: Call freeze as a method on the object [OK]
Common Mistakes:
  • Using freeze(arr) which is invalid syntax
  • Using arr.frozen which is not a method
  • Confusing freeze with frozen?

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