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What does the Comparable module require you to define in your class to work properly?

easy📝 Conceptual Q1 of 15
Ruby - Modules and Mixins

What does the Comparable module require you to define in your class to work properly?

AThe <code><=></code> method
BThe <code>==</code> method
CThe <code>compare</code> method
DThe <code>equal?</code> method
Step-by-Step Solution
Solution:

  1. Step 1: Understand Comparable requirements

    The Comparable module needs the <=> method to compare objects.

  2. Step 2: Identify the required method

    Only the <=> method is required; other methods like == are derived from it.

  3. Final Answer:

    The <=> method -> Option A

  4. Quick Check:

    Comparable requires <=> = D [OK]
Quick Trick: Define <=> to use Comparable module effectively [OK]
Common Mistakes:
  • Defining == instead of <=>
  • Forgetting to define any comparison method
  • Using wrong method name like compare

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