[Solved] What does the include? method do when called on an array in Ruby? — Ans: Checks if the array contains a specific element | Ruby

Ruby - Arrays

What does the include? method do when called on an array in Ruby?

AReturns the number of elements in the array

BChecks if the array contains a specific element

CFlattens nested arrays into a single array

DRemoves duplicate elements from the array

Step-by-Step Solution

Solution:

Step 1: Understand the purpose of include?
The include? method checks if a given element exists inside the array.
Step 2: Compare with other methods
length returns count, flatten merges nested arrays, and removing duplicates is done by uniq.
Final Answer:
Checks if the array contains a specific element -> Option B
Quick Check:
include? = Check element presence [OK]

Quick Trick: Use include? to test if an element exists in an array [OK]

Common Mistakes:

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What does the include? method do when called on an array in Ruby?