[Solved] What is the main difference between dup and clone in Ruby? — Ans: clone copies frozen state and singleton methods; dup does not. | Ruby

Ruby - Class Methods and Variables

What is the main difference between dup and clone in Ruby?

A<code>clone</code> copies frozen state and singleton methods; <code>dup</code> does not.

B<code>dup</code> copies frozen state and singleton methods; <code>clone</code> does not.

C<code>dup</code> creates a deep copy; <code>clone</code> creates a shallow copy.

D<code>clone</code> only copies instance variables; <code>dup</code> copies the entire object.

Step-by-Step Solution

Solution:

Step 1: Understand what dup copies
dup creates a shallow copy but does not copy frozen state or singleton methods.
Step 2: Understand what clone copies
clone copies everything including frozen state and singleton methods.
Final Answer:
clone copies frozen state and singleton methods; dup does not. -> Option A
Quick Check:
clone copies all [OK]

Quick Trick: Remember: clone copies everything, dup skips frozen and singleton [OK]

Common Mistakes:

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