[Solved] What does the Ruby method reject do when called on an array? — Ans: It returns a new array excluding elements that match the given condition. | Ruby

Ruby - Enumerable and Collection Processing

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

AIt sorts the array in reverse order.

BIt modifies the original array to keep only elements matching the condition.

CIt returns the first element that matches the condition.

DIt returns a new array excluding elements that match the given condition.

Step-by-Step Solution

Solution:

Step 1: Understand the purpose of reject
The reject method filters elements by removing those that satisfy the condition.
Step 2: Compare with other methods
Unlike select, which keeps matching elements, reject excludes them and returns a new array.
Final Answer:
It returns a new array excluding elements that match the given condition. -> Option D
Quick Check:
reject excludes matching elements = A [OK]

Quick Trick: Reject removes items matching condition, returning a new array [OK]

Common Mistakes:

Master "Enumerable and Collection Processing" in Ruby

9 interactive learning modes - each teaches the same concept differently

More Ruby Quizzes

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