[Solved] What does the Ruby method reverse! do when called on an array? — Ans: Reverses the array in place, modifying the original | Ruby

Ruby - Arrays

What does the Ruby method reverse! do when called on an array?

AReverses the array in place, modifying the original

BSorts the array in descending order

CReturns a new reversed array without changing the original

DSorts the array in ascending order

Step-by-Step Solution

Solution:

Step 1: Understand the difference between reverse and reverse!
reverse returns a new reversed array without changing the original, while reverse! reverses the array in place.
Step 2: Identify the effect of reverse!
reverse! modifies the original array by reversing its elements.
Final Answer:
Reverses the array in place, modifying the original -> Option A
Quick Check:
reverse! modifies original array = true [OK]

Quick Trick: reverse! changes original array, reverse returns new [OK]

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What does the Ruby method reverse! do when called on an array?